Navy Training System Plan

[ Navy Training System Plans ]

NAVY TRAINING SYSTEM PLAN

FOR

NAVAL AVIATION OXYGEN SYSTEMS

N88-NTSP-A-50-8603C/D

September 2000

EXECUTIVE SUMMARY

Naval Aviation Oxygen Systems (NAOS) include the On-Board Oxygen Generating System (OBOGS) and the Aviators Breathing Oxygen (ABO) Contaminant Analyzer.

The OBOGS was developed to provide a continuous supply of oxygen-enriched air to the aircrew when the system is activated during aircraft engine operation. OBOGS is currently installed in the AV-8B, TAV-8B, T-45A, F-14D, and F/A-18C/D aircraft. OBOGS is scheduled for installation in all new F/A-18E/F, T-6A, and MV-22 aircraft. Initial Operational Capability (IOC) was achieved in September 1985. The Navy Support Date (NSD) for OBOGS was achieved in 1987. OBOGS is in Phase III (Production, Deployment, and Operational Support) of the Weapon System Acquisition Process (WSAP).

The ABO Contaminant Analyzer is used with existing auxiliary support equipment to provide ABO contaminant analysis capability. IOC was achieved in March 1994. All ABO Contaminant Analyzer units were delivered prior to the NSD in September 1996. This Program is in Phase III (Production, Deployment, and Operational Support) of the WSAP.

Navy Aviation Structural Mechanics (Safety Equipment) (AME) with aircraft specific Navy Enlisted Classifications (NEC) and Marine Corps Aircraft Safety Equipment Mechanics with aircraft specific Military Occupational Specialties (MOS) maintain the OBOGS at the organizational level. The ABO Contaminant Analyzer is not used at the organizational level. Navy Aviation Survival Equipmentmen with NEC 7356 and Marine Corps Flight Equipment Marines with MOS 6060 maintain OBOGS components and operate and maintain the ABO Contaminant Analyzer at the intermediate level. The respective manufacturer performs depot level maintenance for both the OBOGS and ABO Contaminant Analyzer. The manpower identified in current Navy and Marine Corps manpower documents is sufficient to support the NAOS. No new NECs or MOSs will be required.

All initial training requirements for both the OBOGS and ABO Contaminant Analyzer have been completed. Follow-on OBOGS organizational level maintenance is included in applicable aircraft Naval Air Maintenance Training Group organizational level maintenance training courses. Follow-on OBOGS intermediate level maintenance training previously established at Maintenance Training Unit (MTU) 1038 Lemoore, California, and MTU 1039 Oceana, Virginia, has been discontinued. The OBOGS maintenance curricula is being revised and added to an existing course in the Aircrew Survival Equipment Intermediate Maintenance Pipeline at Naval Air Technical Training Center (NATTC) Pensacola, Florida. The new OBOGS course will be Ready For Training in June 2001. Intermediate level operator and maintenance training for the ABO Contaminant Analyzer is included in a course which is part of the Aircrew Survival Equipment Intermediate Maintenance Pipeline at NATTC Pensacola.

TABLE OF CONTENTS

Page

Executive Summary i

List of Acronyms iii

Preface v

PART I - TECHNICAL PROGRAM DATA

A. Nomenclature-Title-Program I-1

B. Security Classification I-1

C. Manpower, Personnel, and Training Principals I-1

D. System Description I-2

E. Developmental Test and Operational Test I-2

F. Aircraft and/or Equipment/System/Subsystem Replaced I-3

G. Description of New Development I-3

H. Concepts I-7

I. Onboard (In-Service) Training I-15

J. Logistics Support I-16

K. Schedules I-18

L. Government Furnished Equipment and Contractor Furnished Equipment

Training Requirements I-18

M. Related NTSPs and Other Applicable Documents I-19

PART II - BILLET AND PERSONNEL REQUIREMENTS II-1

PART III - TRAINING REQUIREMENTS III-1

PART IV - TRAINING LOGISTICS SUPPORT REQUIREMENTS IV-1

PART V - MPT MILESTONES V-1

PART VI - DECISION ITEMS/ACTION REQUIRED VI-1

PART VII - POINTS OF CONTACT VII-1

LIST OF ACRONYMS
ABO	Aviators Breathing Oxygen
AIMD	Aircraft Intermediate Maintenance Department
AME	Aviation Structural Mechanic (Safety Equipment)
AMTCS	Aviation Maintenance Training Continuum System

CIN	Course Identification Number
CINCLANTFLT	Commander In Chief, Atlantic Fleet
CINCPACFLT	Commander In Chief, Pacific Fleet
CM	Controller-Monitor
CMC	Commandant Marine Corps
CNET	Chief of Naval Education and Training
CNO	Chief of Naval Operations
COTS	Commercial Off-The-Shelf

FMS	Foreign Military Sales

G	Gravity Force

ILSP	Integrated Logistics Support Plan

JRB	Joint Reserve Base

LOX	Liquid Oxygen

MATMEP	Maintenance Training Management and Evaluation Program
MCAS	Marine Corps Air Station
MCCDC	Marine Corps Combat Development Command
MM	Machinist's Mate
MOS	Military Occupational Specialty
MSD	Material Support Date
MTIP	Maintenance Training Improvement Program
MTU	Maintenance Training Unit

NA	Not Applicable
NAF	Naval Air Facility
NAMTRAGRU DET	Naval Air Maintenance Training Group Detachment
NAMTRAU	Naval Aviation Maintenance Training Unit
NAOS	Naval Aviation Oxygen Systems
NAS	Naval Air Station
NATC	Naval Air Test Center
NATTC	Naval Air Technical Training Center
NAVAIRSYSCOM	Naval Air Systems Command
NAVPERSCOM	Naval Personnel Command
NEC	Navy Enlisted Classification
NSD	Navy Support Date
NTSP	Navy Training System Plan

OBIGGS	On-Board Inert Gas Generating System
OBOGS	On-Board Oxygen Generating System
OPEVAL	Operational Evaluation
OPNAV	Office of the Chief of Naval Operations
OPNAVINST	Office of the Chief of Naval Operations Instruction
OPO	OPNAV Principal Official
O₂-N₂	Oxygen-Nitrogen

PMA	Program Manager, Air
PO2	Pressure of Oxygen
PPO2	Partial Pressure of Oxygen
PR	Aviation Survival Equipmentman
PSA	Pressure Swing Adsorption
PSI	Pounds per Square Inch

RFT	Ready For Training

SSOM	Solid State Oxygen Monitor

TBD	To Be Determined
TD	Training Device
TECHEVAL	Technical Evaluation
TFS	Total Force Structure
TTE	Technical Training Equipment

WRA	Weapon Replaceable Assembly

PREFACE

This Draft Navy Training System Plan (NTSP) for the Naval Aviation Oxygen Systems (NAOS) updates the On-Board Oxygen Generating System (OBOGS) Approved NTSP, A-50-8603B/A, dated June 1994. This document has been developed in accordance with the guidelines set forth in the Navy Training Requirements Documentation Manual, Office of the Chief of Naval Operations (OPNAV) Publication P-751-1-9-97. Major changes to this document include:

Changing the name of the NTSP from On-Board Oxygen Generating System to Naval Aviation Oxygen Systems. This title change more accurately reflects the revised content of the document.
Incorporation of information applicable to the A/E 24T-226 Aviators Breathing Oxygen (ABO) Contaminant Analyzer. This information was previously contained in NTSP A-50-9308A/D, A/E 24T-226 Aviators Breathing Oxygen Contaminant Analyzer, dated February 1999.
Updating all information for OBOGS and the A/E 24T-226 ABO Contaminant Analyzer.
Incorporation of NTSP format changes and updating of milestones since the last publication date.

N88-NTSP-A-50-8603C/D

September 2000

PART I - TECHNICAL PROGRAM DATA

A. NOMENCLATURE-TITLE-PROGRAM

1. Nomenclature-Title-Acronym. Naval Aviation Oxygen Systems (NAOS)

2. Program Element. 64264N

B. SECURITY CLASSIFICATION

1. System Characteristics Unclassified

2. Capabilities Unclassified

3. Functions Unclassified

C. MANPOWER, PERSONNEL, AND TRAINING PRINCIPALS

OPNAV Principal Official (OPO) Program Sponsor CNO (N88)

OPO Resource Sponsor CNO (N88)

Functional Mission Sponsor CNO (N88)

Marine Corps Program Sponsor CMC (ASL-33)

Developing Agency NAVAIRSYSCOM (PMA202)

Training Agency CINCLANTFLT

CINCPACFLT

CMC

CNET

Training Support Agency NAVAIRSYSCOM (PMA205)

Manpower and Personnel Mission Sponsor CNO (N12)

NAVPERSCOM (PERS-40, PERS-404)

Director of Naval Training CNO (N7)

Marine Corps Force Structure MCCDC (C53)

D. SYSTEM DESCRIPTION

1. Operational Uses. NAOS includes the OBOGS and the ABO Contaminant Analyzer.

a. On-Board Oxygen Generating System. The OBOGS is designed to provide a continuous supply of oxygen-enriched air to the aircrew when the system is activated during aircraft engine operation. OBOGS installation eliminates aircraft dependence on liquid oxygen facilities. OBOGS facilitates the deployment of aircraft aboard air capable ships and shore bases that do not have oxygen-manufacturing capability.

b. Aviators Breathing Oxygen Contaminant Analyzer. The model A/E 24T-226 ABO Contaminant Analyzer is a modularized unit designed for analyzing contaminant levels and determining the concentration of contaminants that may be present in ABO.

2. Foreign Military Sales. For information concerning Foreign Military Sales (FMS) of NAOS equipment, contact PMA202D.

E. DEVELOPMENTAL TEST AND OPERATIONAL TEST

1. Technical Evaluation

a. On-Board Oxygen Generating System. Technical Evaluation (TECHEVAL) was conducted on an OBOGS-equipped AV-8A aircraft from February 1980 to August 1981 at the Naval Air Test Center (NATC), Patuxent River, Maryland, and Marine Corps Air Station (MCAS), Yuma, Arizona. TECHEVAL on an improved OBOGS installed in an AV-8A aircraft was conducted at NATC Patuxent River from January to March 1982. Results were satisfactory.

b. Aviators Breathing Oxygen Contaminant Analyzer. Two TECHEVALs were conducted on the ABO Contaminant Analyzer at the Naval Air Warfare Center, Aircraft Division, Patuxent River. These evaluations were completed in July 1993. After correcting discrepancies, the ABO Contaminant Analyzer was approved for fleet use in 1994.

2. Operational Evaluation

a. On-Board Oxygen Generating System. Operational Evaluation (OPEVAL) was conducted on an AV-8 OBOGS-equipped aircraft at MCAS Yuma from October 1983 to February 1984. Marine Corps personnel under the direction of the Commander, Operational Test and Evaluation Force, Norfolk, Virginia, conducted OPEVAL. OBOGS was found operationally suitable and effective.

b. Aviators Breathing Oxygen Contaminant Analyzer. No OPEVAL was required for the ABO Contaminant Analyzer.

F. AIRCRAFT AND/OR EQUIPMENT/SYSTEM/SUBSYSTEM REPLACED

1. On-Board Oxygen Generating System. The OBOGS is an additional stand-alone system and does not replace any existing oxygen system.

2. Aviators Breathing Oxygen Contaminant Analyzer. The ABO Contaminant Analyzer replaced the ACCULAB-4 and ACCULAB-8 Oxygen Analyzers.

G. DESCRIPTION OF NEW DEVELOPMENT

1. Functional Description

a. On-Board Oxygen Generating System. The OBOGS consists of three primary components: an oxygen concentrator, an oxygen monitor, and an oxygen regulator. OBOGS provides a continuous supply of breathing gas to the aircrew when the system's electrical power source is activated and the engine bleed air or conditioned air is provided to the inlet of the oxygen concentrator. The self-contained OBOGS includes the GGU-7/A or GGU-12/A Oxygen Concentrators, CRU-83/A or CRU-91/A Polarographic Oxygen Monitors, or CRU-99/A Solid State Oxygen Monitor (SSOM) and CRU-82/P, CRU-88/P or CRU-103/P Oxygen Regulators. Airframe peculiar equipment, which includes plenum(s), valves, plumbing, and other parts, are required in order to integrate the OBOGS with the host aircraft.

(1) Oxygen Concentrator. The Oxygen Concentrator is a self-contained unit that is capable of providing the breathing requirements for an individual at altitudes up to 50,000 feet. The oxygen concentrator extracts undesirable gases from either engine bleed air or conditioned air and provides a continuous high concentration of oxygen enriched air for aircrew use. The gaseous product consists of approximately six-percent argon with the balance consisting of oxygen. The concentrator is located on the F-14D and F/A-18C/D in the same space previously occupied by the Liquid Oxygen (LOX) converter. The AV-8B and T-45 were originally designed and fielded with OBOGS installed. Oxygen Concentrator GGU-7/A (P/N 3261009-0105) is installed in the TAV-8B, AV-8B, and T-45A/B aircraft. Oxygen Concentrator GGU-12/A (P/N 3261077-0101) is installed in the F-14D and F/A-18C/D/E/F. The concentrator is composed of the following items:

(a) Molecular Sieve Beds. Two Molecular Sieve Beds act to adsorb nitrogen molecules through molecular bonding as engine bleed air or conditioned air passes through them. Each bed contains 5.5 pounds of molecular sieve. As the source air flows through the bed, the sieve retains the unwanted gasses, with the desired oxygen enriched air exiting the sieve bed and being routed to the aircrew. The sieve beds are purged, via cycling of the rotary valve, on alternate cycles in which nitrogen is dissipated with other undesirable gases and vented overboard. The sieve beds do not require periodic replacement.

(b) Rotary Valve Assembly. The Rotary Valve Assembly consists of a direct current motor driven valve which rotates on a timed basis to control the gas flow in order to cause alternate adsorption and desorption cycles in the sieve beds.

(c) Electronics Box Assembly. The Electronics Box Assembly controls the temperature of the heater assembly and shroud heater solenoid and controls timing of the rotary valve assembly.

(d) Plenum Assembly. The Plenum Assembly stores oxygen rich gas produced by the molecular sieve beds.

(e) Inlet Filter Assembly. The Inlet Filter Assembly removes contaminants from the air source before being routed to the sieve beds.

(2) Oxygen Monitor. The Oxygen Monitor senses Partial Pressure of Oxygen (PPO₂) and provides a warning signal through the aircraft's WARNING-CAUTION-ADVISORY system if the oxygen concentration falls below 182 millimeters of mercury. CRU-83/A and CRU-91/A oxygen monitors are installed in the AV-8B and TAV-8B aircraft. The monitor is mounted in the cockpit and consists of the following items:

(a) Aneroid Assembly. The Aneroid Assembly senses the change in air pressure resulting from changes in altitude.

(b) Aneroid Valve and Filter Assembly. The Aneroid Valve and Filter Assembly controls pressure in the oxygen sensor chamber in order to prevent false low PPO₂ warnings.

(c) Sensor Cover Assembly. The Sensor Cover Assembly provides access to the sensor chamber for sensor replacement.

(d) Oxygen Sensor. The Oxygen Sensor is a polarographic oxygen sensor that detects Pressure of Oxygen (PO₂) while being insensitive to other gases. An electrical current, proportional to PO₂, is produced by the sensor activating a warning light when PO₂ falls below the minimum physiological requirements.

(e) Press to Vent Assembly. The Press To Vent Assembly is an inlet assembly that draws ambient air across the oxygen sensor when the plunger Built-In Test valve is depressed.

(f) Cover Screw and Lanyard Assembly. The Cover Screw and Lanyard Assembly provide access to the monitor gain adjustment potentiometer.

(3) Solid State Oxygen Monitor. The CRU-99/A SSOM (P/N 3270063-0102) is a direct replacement for the CRU-83/A and CRU-91/A Polarographic Oxygen Monitors. The oxygen sensor in the SSOM is of the current limiting zirconia type. The SSOM incorporates several self-test features and is not adjustable. No intermediate level testing or maintenance is performed on it. The CRU-99/A SSOM is installed in the F-14D, F/A-18C/D/E/F, and T-45A aircraft.

(4) CRU-82/P Oxygen Regulator. The CRU-82/P Oxygen Regulator is mounted by a quick disconnect attachment to the aircrew parachute harness. The regulator is an automatic pressure breathing type, providing breathing oxygen to the aircrewman's facemask on demand. It is designed specifically for the OBOGS and is characterized by the fact that it has the capacity to function at lower pressures than the 40 pounds per square inch (PSI) minimum required by standard miniature regulators.

(5) CRU-103/P Demand Oxygen Regulator. The CRU-103/P Demand Oxygen Regulator is designed for use with all tactical aircraft series oxygen masks as part of the oxygen system in aircraft with liquid oxygen systems or OBOGS. The regulator, which is manufactured by Carleton Technologies Inc., is designed to regulate oxygen to the aircrew member during flight. The CRU-103/P Demand Oxygen Regulator was developed as a part of the Navy Combat Edge system. It is a chest mounted, automatic positive pressure breathing type, Gravity Force (G)-modulated regulator that provides demand oxygen flow to the aircrew member including Pressure Breathing for Altitude and Pressure Breathing for Gs. This regulator is scheduled to replace the CRU-79/P, CRU-82/P, and CRU-88/P series regulators.

(6) Oxygen-Nitrogen Generating System (MV-22). The Oxygen-Nitrogen Generating System (O₂-N₂) Generating System used in the MV-22 consists of a Controller-Monitor (CM) and the Pressure Swing Adsorption (PSA) assembly. The CM functions as the controller interfacing with the O₂-N₂ concentrator and the control panel. The PSA assembly consists of the OBOGS and the On-Board Inert Gas Generating System (OBIGGS). The OBOGS can produce enough oxygen for all four crewmembers under all temperature and altitude conditions. The system uses pressure swing adsorption to produce oxygen enriched and oxygen depleted gas. The OBIGGS supplies oxygen-depleted air to the fuel tanks with an oxygen concentration of not more than seven-percent oxygen.

b. Aviators Breathing Oxygen Contaminant Analyzer. The ABO Contaminant Analyzer is capable of scanning a gas phase sample containing up to 15 contaminants and providing an output of the quantitative results. This analysis is performed on gas samples at one PSI above sea level pressure. Contaminant analysis time, including evacuated cell analysis (background scan), sample analysis, data processing, and printout of results, is less than ten minutes. The unit's computer is capable of searching a library and comparing it with sample spectra to estimate the composition of the suspected contaminant substance(s). The ABO Contaminant Analyzer uses an Infrared Spectrophotometer integrated with a microprocessor, which produces a printout of the qualitative and quantitative contamination levels encountered. The ABO Contaminant Analyzer is used to ensure specifications of the ABO are maintained per the technical manual AG-332AO-GYD-000, ABO Surveillance Program Laboratory Manual and Field Guide. The ABO Contaminant Analyzer is located at Navy and Marine Corps Air Stations, expeditionary sites, and onboard Navy aircraft carriers. The unit consists of the following components:

(1) Data Processor. The Data Processor changes the signal from the infrared detector into a spectrum curve, then compares it to spectrum curves of a preprogrammed signal to determine if a contaminant is present, and, if so, at what quantity.

(2) Built-In Keyboard. The Built-In Keyboard is a 40-character keypad, similar to a standard typewriter with numeric keypad. The Built-In Keyboard is used for entering textual information.

(3) Two-Line Display. Most software functions appear as menu options in the Two-Line Display. Four blue soft keys, adjacent to the display, allow selection of the desired software function from the menu.

(4) Internal Printer. The Internal Printer is permanently mounted and prints on four-inch wide rolled thermal paper.

(5) Optics. The three main components of the Optics are the Michelson interferometer, an infrared light source, and a detector. The interferometer consists of a partially reflective beam-splitter mirror, a mirror that oscillates back and forth, and an automatic alignment machine for the beam splitter.

(6) Gas Cell. The Gas Cell houses the gas sample during analysis and is located in the sample compartment. The 10-meter multi-path length cell bounces the beam of infrared light back and forth within the cell to achieve a greater path length without the need for an excessively large gas cell. All gas cells feature a safety release valve that prohibits pressure inside the cell from exceeding 25 PSI.

(7) Hard Drive. A 210-megabyte internally mounted hard drive provides space for storing the system software and the spectrum libraries.

(8) Laser. The source of laser energy is a nominal two-milliwatt, continuous, 632.8 nanometer laser head.

2. Physical Description

a. On-Board Oxygen Generating System. The components of the OBOGS system are contained within the interior portion of the aircraft and do not affect any storage or aircraft handling considerations.

b. Aviators Breathing Oxygen Contaminant Analyzer

Electrical requirements 115 Volts, 60 Hertz

Electro Magnetic Interference 5 Volts Per Meter (MIL-STD-461, RS03)

Length 30.5 inches

Width 42 inches

Height 23 inches

Shipping Weight 300 pounds

3. New Development Introduction

a. On-Board Oxygen Generating System. The OBOGS will be installed in the MV-22, T-6A, and F/A-18E/F aircraft during production. Existing AV-8B, TAV-8B and T-45A/B aircraft were fielded with OBOGS installed. OBOGS was installed in existing F-14D and F/A-18C/D aircraft through retrofit programs.

b. Aviators Breathing Oxygen Contaminant Analyzer. The ABO Contaminant Analyzer was procured as a non-developmental Commercial Off-The-Shelf (COTS) item.

4. Significant Interfaces

a. On-Board Oxygen Generating System. The OBOGS interfaces directly with the ejection seat quick disconnect fittings used during emergency egress in the MV-22, T-6A, AV-8B, TAV-8B, T-45A/B, F-14D, and F/A-18C/D/E/F aircraft.

b. Aviators Breathing Oxygen Contaminant Analyzer. Not Applicable (NA)

5. New Features, Configurations, or Material. NA

H. CONCEPTS

1. Operational Concept

a. On-Board Oxygen Generating System. The OBOGS is activated during aircraft engine operation and requires no operator.

b. Aviators Breathing Oxygen Contaminant Analyzer. The ABO Contaminant Analyzer is operated at the intermediate maintenance level by Navy Aircrew Survival Equipmentman (PR) personnel with Navy Enlisted Classification (NEC) 7356 and Marine Corps personnel with Military Occupational Specialty (MOS) 6060 assigned to Work Center 81C, Oxygen Regulator and Equipment Shop. Machinist's Mate (MM) personnel with NEC 4201 and Marine Corps personnel with MOS 6075 assigned to Work Center 820, Oxygen/Nitrogen Generating Facility, also operate the ABO Contaminant Analyzer. The ABO Contaminant Analyzer is used as required with a minimum average operating time of 2.5 hours per week. The manpower, personnel, and training requirements associated with Navy and Marine Corps personnel assigned to Work Center 820 are addressed in the Trailer Mounted Liquid Oxygen/Nitrogen Generating Plant NTSP identified in Part I, paragraph M of this document.

2. Maintenance Concept

a. On-Board Oxygen Generating System

(1) Organizational. Organizational level maintenance is performed by Aviation Structural Mechanic (Safety Equipment) (AME) and Marine Corps Aircraft Safety Equipment Mechanic personnel assigned to the Egress-Environmental Systems Shop, Work Center 13B.

(a) Preventive Maintenance. Preventive maintenance consists of functional tests every 28 days on aircraft equipped with the CRU-83/A or CRU-91/A Polarographic Oxygen Monitors, and every 56 days on F-14D aircraft equipped with the CRU-99/A SSOM using the TTU-520A/E Aircraft Oxygen Test Set. Due to the high reliability demonstrated on the F/A-18C/D aircraft, the preventive maintenance inspection has been eliminated. The GGU-7/A Oxygen Concentrator is removed and forwarded to the intermediate level for the Inlet Filter change and functional check every 500 flight hours. The GGU-12/A Oxygen Concentrator is removed and forwarded to the intermediate level for the Inlet Filter change and functional check every 400-flight hours. Although the F/A-18 aircraft concentrator undergoes intermediate level check during the aircraft Phase B and D inspections, it is also accomplished within the required 400-flight hour window. Additionally, preflight visual and functional testing of the CRU-82/P, CRU-88/P, and CRU-103/P Oxygen Regulator is performed every 30 days in accordance with NAVAIR 13-1-6.4, Aviation Crew Systems Oxygen Equipment Manual. OBOGS/OBIGGS preventive maintenance requirements for the MV-22 aircraft will be prescribed in the MV-22 Maintenance Plan, which is pending final approval.

(b) Corrective Maintenance. Corrective maintenance consists of fault isolating plumbing, wiring, and Weapon Replaceable Assemblies (WRA) using Built-In Test and Common Support Equipment. Faulty WRAs are forwarded to the intermediate or depot maintenance level, as applicable, for repair.

(2) Intermediate. Intermediate level maintenance is performed by PRs with NEC 7356 and Marine Corps personnel with MOS 6060, assigned to Work Center 81C, Oxygen Regulator and Equipment Shop, of Aircraft Intermediate Maintenance Departments and Marine Aviation Logistics Squadrons. Intermediate level maintenance for the MV-22 OBOGS/OBIGGS assembly is To Be Determined (TBD). The following table illustrates the intermediate maintenance level requirements by system:

SYSTEM	INTERMEDIATE MAINTENANCE REQUIREMENTS
GGU-7/A Oxygen Concentrator (Preventive Maintenance)	Inspect for material condition and repair as necessary. Remove and replace Inlet Filter Element and bench test the Oxygen Concentrator every 500 flight hours.
GGU-7/A Oxygen Concentrator (Corrective Maintenance)	Fault isolate, remove and replace defective components as necessary, and perform bench test.
GGU-7/A Sieve Bed, Rotary Valve Assembly, Oxygen Concentrator, Electric Box	Forward to depot level for repair.
GGU-7/A Plenum Assembly, Inlet Filter Assembly, Shroud Assembly	Limited repair capability.
GGU-12/A Oxygen Concentrator (Preventive Maintenance)	Inspect for material condition and repair as necessary. Remove and replace Inlet Filter Element and bench test the Oxygen Concentrator every 400 flight hours.
GGU-12/A Oxygen Concentrator (Corrective Maintenance)	Fault isolate, remove and replace defective components as necessary, and perform bench test.
GGU-12/A Sieve Bed, Rotary Valve Assembly, Oxygen Concentrator	Forward to depot level for repair.
GGU-12/A Plenum Assembly, Inlet Filter Assembly, Top Shroud Assembly, Wrap Shroud Assembly, Bottom Shroud Assembly	Limited repair capability.
CRU-83/A Polarographic Oxygen Monitor (Preventive Maintenance)	Inspect for material condition and repair as necessary. Perform bench test of the Monitor and lubricate the Monitor Inlet Valve Assembly every 364 days.
CRU-83/A Polarographic Oxygen Monitor (Corrective Maintenance)	Fault isolate, remove defective parts as necessary, and perform bench test.
CRU-83/A Monitor, Inlet Valve, Aneroid Valve, and Filter Assy.	Limited repair capability.
CRU-91/A Polarographic Oxygen Monitor (Preventive Maintenance)	Inspect for material condition and repair as necessary. Perform bench test of the Monitor and lubricate the Monitor Inlet Valve Assembly every 364 days.
CRU-91/A Polarographic Oxygen Monitor (Corrective Maintenance)	Fault isolate, remove and replace defective parts, and perform bench test.
CRU-91/A Monitor, Inlet Valve, Aneroid Valve, and Filter Assy.	Limited repair capability.
CRU-99/A SSOM (Corrective Maintenance)	Forward Monitor to depot level for repair.
CRU-82/P and CRU-88/P Oxygen Regulators (Preventive Maintenance)	Perform "place in service" inspection in accordance with NAVAIR 13-1-6.4. Perform bench test of the Regulator every 90 days in accordance with NAVAIR 13-1-6.4.
CRU-82/P and CRU-88/P Oxygen Regulators (Corrective Maintenance)	Fault isolate, remove and replace defective components as necessary, and perform bench test in accordance with NAVAIR 13-1-6.4.
CRU-103/P Oxygen Regulator (Preventive Maintenance)	Perform "place in service" inspection in accordance with NAVAIR 13-1-6.4. Perform bench test of the Regulator every 90 days in accordance with NAVAIR 13-1-6.4.
CRU-103/P Oxygen Regulator (Corrective Maintenance)	Fault isolate, remove and replace defective components as necessary, and perform bench test in accordance with NAVAIR 13-1-6.4.

(3) Depot. The Litton Corporation, Life Support Division, Davenport, Iowa, performs depot level maintenance and rework of OBOGS components.

(4) Interim Maintenance. NA

(5) Life Cycle Maintenance Plan. NA

b. Aviators Breathing Oxygen Contaminant Analyzer. Maintenance of the ABO Contaminant Analyzer is performed at two levels, intermediate and depot.

(1) Organizational. NA

(2) Intermediate. PRs with NEC 7356 and Marine Corps personnel with MOS 6060 assigned to Work Center 81C, Oxygen Regulator and Equipment Shop, perform intermediate maintenance on the Aviators Breathing Oxygen Contaminant Analyzer.

(a) Preventive Maintenance. Preventive maintenance consists of pre-operational inspections, replenishment of consumable items, adjustment of pressures, cleaning, servicing, and corrosion control.

(b) Corrective Maintenance. Corrective maintenance consists of fault isolation, and removal and replacement of defective assemblies and components.

(3) Depot. Depot level maintenance of the ABO Contaminant Analyzer is performed by Nicolet Instrument Corporation, Madison, Wisconsin, and includes repair of components beyond the capability of intermediate level maintenance and equipment overhaul.

(4) Interim Maintenance. NA

(5) Life-Cycle Maintenance Plan. NA

3. Manning Concept

a. On-Board Oxygen Generating System. Organizational level maintenance of the OBOGS is performed by Navy AMEs and Marine Corps Aircraft Safety Equipment Mechanics. Organizational level maintenance manpower, personnel, and training requirements associated with OBOGS are addressed in the individual aircraft NTSPs identified in Part I, paragraph M of this document. PRs with NEC 7356 and Marine Corps personnel with MOS 6060 maintain OBOGS components at the intermediate level. Existing intermediate maintenance manpower requirements will remain unchanged. No new NECs or MOSs will be required.

b. Aviators Breathing Oxygen Contaminant Analyzer. The ABO Contaminant Analyzers is operated and maintained at the intermediate maintenance level by Navy PRs with NEC 7356, and Marine Corps personnel with MOS 6060. Existing intermediate maintenance manpower requirements will remain unchanged. No new NECs or MOSs will be required.

4. Training Concept. All initial training requirements for both the OBOGS and ABO Contaminant Analyzer have been completed. Follow-on OBOGS organizational level maintenance is included in applicable Naval Air Maintenance Training Group Detachment (NAMTRAGRU DET) or Naval Air Maintenance Training Unit (NAMTRAU) aircraft organizational level maintenance training courses. Follow-on OBOGS intermediate level maintenance training previously established at Maintenance Training Unit (MTU) 1038 NAMTRAU Lemoore, California, and MTU 1039 NAMTRAU Oceana, Virginia, has been discontinued. The OBOGS maintenance curricula is being revised and added to existing course C-602-2028, LOX Converter Test Stand/LOX Converter and Survival Kit repair, which is part of the Aircrew Survival Equipment Intermediate Maintenance Pipeline at Naval Air Technical Training Center (NATTC) Pensacola, Florida. Intermediate level operator and maintenance training for the ABO Contaminant Analyzer is included in course C-670-2018, Aviator's Breathing Oxygen Test Site Operator/Analyst, which is part of the Aircrew Survival Equipment Intermediate Maintenance Pipeline at NATTC Pensacola.

a. Initial Training

(1) On-Board Oxygen Generating System. Initial training for TECHEVAL and OPEVAL personnel was conducted in 1985 by the manufacturer at Clifton Precision Instrument, now Litton Life Support, in Davenport, Iowa. Initial organizational maintenance training for NAMTRAGRU DET instructors consisted of two courses conducted by the aircraft manufacturer in 1985. Initial intermediate maintenance training for NAMTRAGRU DET instructors was conducted in 1985 by Clifton Precision Instrument.

(2) Aviators Breathing Oxygen Contaminant Analyzer. Nicolet Instrument Corporation, Madison, Wisconsin, provided initial training for OPEVAL and NATTC Pensacola instructor personnel. All initial training was completed in 1993.

b. Follow-On Training. OBOGS refresher continuation training for ejection seat equipped aircraft is conducted at various Aviation Survival Training Centers and is fully documented in the Naval Aviation Survival Training Program NTSP identified in Part I, paragraph M of this document.

Follow-on OBOGS organizational maintenance training is established by the specific aircraft community at their respective NAMTRAGRU DET or NAMTRAU. The Ready For Training (RFT) date for OBOGS organizational level training was June 1993. The tracks for the applicable aircraft are listed below and detailed in the respective aircraft NTSPs listed in Part I, paragraph M of this document. The T-45A/B and T-6A aircraft are contractor maintained.

AIRCRAFT	CIN	TITLE
AV-8B	M-602-0163	AV-8B Aircraft Safety Equipment Mechanic Organizational Maintenance
F-14D	D-602-1667	F-14 Environmental/Escape Systems Initial Organizational Maintenance
F/A-18C/D	D/E-602-0662	F/A-18 Safety Equipment Initial Organizational Maintenance
F/A-18E/F	E-602-0664	F/A-18E/F Safety Equipment (Initial) Organizational Maintenance
MV-22	M-602-XXX2	MV-22 Environmental Control Miscellaneous Utilities/Egress Systems Organizational Maintenance

Follow-on OBOGS intermediate maintenance training was originally established at MTU 1038 Lemoore, California, and MTU 1039 Cecil Field, Florida, in June 1993 in the form of stand-alone course C-602-4892, On-Board Oxygen Generating System Intermediate Maintenance. The content of course C-602-4892 is being integrated within course C-602-2028, LOX Converter Test Stand/LOX Converter and Survival Kit Unit Repair, which is part of track C-602-2040, Aircrew Survival Equipment Intermediate Maintenance Pipeline. Note that course C-602-4892 is currently unavailable due to the course rewrite and transition of Technical Training Equipment (TTE) from NAMTRAU Lemoore to NATTC Pensacola. The revised course is scheduled to be RFT in June 2001. The addition of OBOGS will not affect the length of the current training track. Follow-on ABO Contaminant Analyzer operator and maintenance training is provided in course C-670-2018, Aviators Breathing Oxygen Test Site Operator/Analyst, which is also part of track C-602-2040, Aircrew Survival Equipment Intermediate Maintenance Pipeline.

Title .....................	Aircrew Survival Equipment Intermediate Maintenance Pipeline
CIN .....................	C-602-2040, Path 2
Model Manager ...	NATTC Pensacola
Description ..........	This track provides training to Aircrew Survival Equipment maintenance personnel including: A/E 24T-226 ABO Contaminant Analyzer operation and maintenance LOX converter test stand operation and maintenance LOX converter maintenance Flowmeter repair and calibration Regulator valve repair IT-71 oxygen test stand operation and maintenance Purging device operation and maintenance Oxygen monitor repair Oxygen concentrator repair Nitrogen regulator repair Oxygen and nitrogen cylinder servicing and handling Pressurized parachute packing Naval Aircrew Common Ejection Seat Packing Press operation and maintenance Upon completion, the student will be able to maintain and repair aircrew survival equipment in a shop environment under limited supervision.
Location ..............	NATTC Pensacola
Length .................	54 days
RFT date .............	Currently available. RFT June 2001 with OBOGS.
Skill identifier .....	PR 7356
TTE/TD ..............	See elements IV.A.1 and IV.A.2
Prerequisite .........	C-602-2035, Aircrew Survival Equipmentman Common Core Class A1 C-602-2037, Aircrew Survival Equipmentman Intermediate Level Strand Class A1

Note 1. Marine Corps personnel receive MOS 6075, Cryogenics Equipment Operator, by successfully completing course M-750-6075 at MTU 1006 Cherry Point, North Carolina. Navy MMs receive NEC 4201, Cryogenics Technician Overseas Shore Based Equipment Operator/Maintainer, by successfully completing course M-750-9901 at MTU 1006 Cherry Point. The use of the A/E 240T-226 ABO Contaminant Analyzer is contained in both of these courses. This training is addressed in detail in the Trailer Mounted Liquid Oxygen/Nitrogen Generating Plant NTSP identified in Part I, paragraph M of this document.

Note 2. Course C-602-2035, Aircrew Survival Equipmentman Common Core Class A1 and C-602-2037, Aircrew Survival Equipmentman Intermediate Level Strand Class A1 are currently in the process of being combined into one course. This new course will be ready for training in FY02.

c. Student Profiles

SKILL IDENTIFIER	PREREQUISITE SKILL AND KNOWLEDGE REQUIREMENTS
PR 7356	C-602-2035, Aircrew Survival Equipmentman Common Core Class A1 C-602-2037, Aircrew Survival Equipmentman Intermediate Level Strand Class A1
MOS 6060	C-602-2035, Aircrew Survival Equipmentman Common Core Class A1 C-602-2037, Aircrew Survival Equipmentman Intermediate Level Strand Class A1

d. Training Pipeline. No additional training pipelines will be required.

I. ONBOARD (IN-SERVICE) TRAINING

1. Proficiency or Other Training Organic to the New Development

a. Maintenance Training Improvement Program. The Maintenance Training Improvement Program (MTIP) is used to establish an effective and efficient training system responsive to fleet training requirements. MTIP is a training management tool that, through diagnostic testing, identifies individual training deficiencies at the organizational and intermediate levels of maintenance. MTIP is the comprehensive testing of one's knowledge. It consists of a bank of test questions managed through automated data processing. The Deputy Chief of Staff for Training assisted in development of MTIP by providing those question banks (software) already developed by the Navy. MTIP was implemented per OPNAVINST 4790.2 series. MTIP allows increased effectiveness in the application of training resources through identification of skills and knowledge deficiencies at the activity, work center, or individual technician level. Refresher training is concentrated where needed to improve identified skill and knowledge shortfalls. MTIP will be replaced by the Aviation Maintenance Training Continuum System (AMTCS). Current planning is for AMTCS to begin full implementation for fleet deployment on 1 October 2000.

COMNAVAIRPAC has discontinued using MTIP. They are currently using maintenance data products as a source to determine maintenance training deficiencies until AMTCS is implemented.

b. Aviation Maintenance Training Continuum System. AMTCS will provide career path training to the Sailor or Marine from their initial service entry to the end of their military career. AMTCS is planned to be an integrated system that will satisfy the training and administrative requirements of both the individual and the organization. The benefits will be manifested in the increased effectiveness of the technicians and the increased efficiencies of the management of the training business process. By capitalizing on technological advances and integrating systems and processes where appropriate, the right amount of training can be provided at the right time, thus meeting the CNO's mandated "just-in-time" training approach.

Technology investments enable the development of several state-of-the-art training and administrative tools: Computer-Based Training for the technicians in the Fleet in the form of Interactive Courseware with Computer Managed Instruction and Computer Aided Instruction for the schoolhouse.

Included in the AMTCS development effort is the Aviation Maintenance Training Continuum System - Software Module, which provides testing, recording using Electronic Training Jackets, and a feedback system. The core functionality of these AMTCS tools are based and designed around the actual maintenance-related tasks the technicians perform, and the tasks are stored and maintained in a Master Task List data bank. These tools are procured and fielded with appropriate COTS hardware and software, i.e., Fleet Training Devices, Laptops, Personnel Computers, Electronic Classrooms, Learning Resource Centers, operating software, and network software and hardware.

Upon receipt of direction from OPNAV (N889H), AMTCS is to be implemented and the new tools integrated into the daily training environment of all participating aviation activities and supporting elements. AMTCS will serve as the standard training system for aviation maintenance training within the Navy and Marine Corps, and is planned to supersede the existing MTIP and Maintenance Training Management and Evaluation Program (MATMEP) programs.

2. Personnel Qualification Standards. NA

3. Other Onboard or In-Service Training Packages. Marine Corps onboard training is based on the current series of MCO P4790.12, Individual Training Standards System and Maintenance Training Management and Evaluation Program (MATMEP). This program is designed to meet Marine Corps, as well as Navy OPNAVINST 4790.2 series, maintenance training requirements. It is a performance-based, standardized, level-progressive, documentable, training management and evaluation program. It identifies and prioritizes task inventories by MOS through a front-end analysis process that identifies task, skill, and knowledge requirements of each MOS. MTIP questions coupled to MATMEP tasks will help identify training deficiencies that can be enhanced with refresher training. (MATMEP is planned to be replaced by AMTCS.)

J. LOGISTICS SUPPORT

1. Manufacturer and Contract Numbers

CONTRACT NUMBER	MANUFACTURER	ADDRESS
N62269-83-C-0204 (AV-8 OBOGS only)	Litton Life Support Litton Systems, Inc.	P.O. Box 4508 Davenport, IA 52808-4508
N00019-86-C-0182 (All other OBOGS)	Litton Life Support Litton Systems, Inc.	P.O. Box 4508 Davenport, IA 52808-4508
N68335-92-C-0186 (ABO Contaminant Analyzer)	Nicolet Instrument Corporation	52252 Verona Road Madison, WI 53744-4451

2. Program Documentation

a. On-Board Oxygen Generating System. The Integrated Logistics Support Plan AV-ILSP-229 was approved on 15 February 1984, and revised 20 July 1990.

b. Aviators Breathing Oxygen Contaminant Analyzer. A Users Logistics Support Summary, NAWCADLKE-ULSS-91015, was published in November 1995.

3. Technical Data Plan

a. On-Board Oxygen Generating System. Naval Air Training and Operating Procedures Standardization manual changes for all applicable aircraft have been updated to include OBOGS. Organizational maintenance instruction manuals, illustrated parts breakdown, and Maintenance Requirement Cards have been updated to include OBOGS. The intermediate and depot maintenance manual has been updated to include the OBOGS concentrator, monitor, and regulator. Refer to Part IV.B.3 of this NTSP for technical manual requirements at the training site.

b. Aviators Breathing Oxygen Contaminant Analyzer. All publications required to support the operation, maintenance, and training of the ABO Contaminant Analyzer were delivered as part of the new equipment delivery order package. Refer to Part IV.B.3 of this NTSP for technical manual requirements at the training site.

4. Test Sets, Tools, and Test Equipment

a. On-Board Oxygen Generating System. The test sets, tools, and test equipment required to support OBOGS maintenance and training are identified in the Aviation-Crew Systems Oxygen Equipment Manual, NAVAIR 13-1-6.4. Refer to Part IV.A.1 of this NTSP for test sets, tools, and test equipment requirements at the training site.

b. Aviators Breathing Oxygen Contaminant Analyzer. The test sets, tools, and test equipment required to support ABO Contaminant Analyzer maintenance and training are identified in the Installation Operation and Maintenance Instructions for the ABO Contaminant Analyzer, NAVAIR Publication 13-1-6.4. Refer to Part IV.A.1 of this NTSP for test sets, tools, and test equipment requirements at the training site.

5. Repair Parts

a. On-Board Oxygen Generating System. Spares and repair parts for the OBOGS are available through normal supply channels and are managed by the Naval Inventory Control Point, Mechanicsburg, Pennsylvania. The Material Support Date (MSD) was achieved in 1986 and the Navy Support Date (NSD) was achieved in 1987.

b. Aviators Breathing Oxygen Contaminant Analyzer. Spares and repair parts for the ABO Contaminant Analyzer are available through normal supply channels and are managed by the Naval Inventory Control Point, Mechanicsburg. The MSD was September 1995 and the NSD was September 1996.

6. Human Systems Integration. NA

K. SCHEDULES

1. Installation and Delivery Schedules

a. On-Board Oxygen Generating System. Retrofit installation of OBOGS into the AV-8B, T-45, F-14D, and F/A-18C/D has been completed. OBOGS is being installed in the F/A-18E/F, T-6A, and MV-22 aircraft during production.

b. Aviators Breathing Oxygen Contaminant Analyzer. Delivery and installation of the ABO Contaminant Analyzer was completed in June 1996.

2. Ready For Operational Use Schedule

a. On-Board Oxygen Generating System. OBOGS is considered ready for operational use upon installation in the aircraft.

b. Aviators Breathing Oxygen Contaminant Analyzer. The ABO Contaminant Analyzer is ready for operational use upon receipt, check out, and installation at each site.

3. Time Required to Install at Operational Sites

a. On-Board Oxygen Generating System. NA

b. Aviators Breathing Oxygen Contaminant Analyzer. The time required to install the ABO Contaminant Analyzer is approximately one week.

4. Foreign Military Sales and Other Source Delivery Schedule. For information concerning FMS of NAOS equipment contact the program office, NAVAIRSYSCOM PMA202D.

5. Training Device and Technical Training Equipment Delivery Schedule

a. On-Board Oxygen Generating System. No Training Devices (TD) are required to support OBOGS Training. TTE required to support OBOGS training is being relocated from NAMTRAU Lemoore to NATTC Pensacola. All required TTE is currently scheduled to be delivered no later than December 2000. TTE requirements are identified in Part IV.A.1 of this NTSP.

b. Aviators Breathing Oxygen Contaminant Analyzer. No TDs are required to support ABO Contaminant Analyzer Training. All required TTE is onboard. TTE requirements are identified in Part IV.A.1 of this NTSP.

L. GOVERNMENT FURNISHED EQUIPMENT AND CONTRACTOR FURNISHED EQUIPMENT TRAINING REQUIREMENTS. NA

M. RELATED NTSPs AND OTHER APPLICABLE DOCUMENTS

DOCUMENT OR NTSP TITLE	DOCUMENT OR NTSP NUMBER	PDA CODE	STATUS
Aviation Life Support System	A-50-9206A/D	PMA202	Draft Jun 00
Navy Aircrew Common Ejection Seat	A-50-8517C/D	PMA211	Draft Apr 00
AV-8B Harrier II Plus System	A-50-8210D/D	PMA257	Draft Aug 99
Naval Aviation Survival Training Program	A-50-9803/D	PMA202	Draft Jun 99
Navy Undergraduate Jet Flight Training System, T-45TS	A-50-8703B/D	PMA273	Draft Feb 95
F-14A/B/D Aircraft	A-50-8511B/A	PMA241	Approved Mar 00
F/A-18 Aircraft	A-50-7703H/D	PMA265	Draft Mar 00
Trailer Mounted Liquid Oxygen/Nitrogen Generating Plant	A-50-9401/A	PMA260	Approved Apr 00
Integrated Logistics Support Plan for the On-Board Oxygen Generating System	AV-ILSP-229	PMA202	Approved Jul 90
Users Logistics Support Summary for the Aviators Breathing Oxygen Contaminant Analyzer	ULSS-91015	PMA260	Approved Nov 95

NEWSLETTER

Join the GlobalSecurity.org mailing list