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ACC releases F-15E engine accident report

Air Combat Command

Release Date: 8/27/2003

8/27/2003 - LANGLEY AIR FORCE BASE, Va. (ACCNS) -- Air Force investigators determined incorrect installation of compressor blade locks in an F-15E engine's core module caused the engine damage that occurred during a test run at Nellis Air Force Base, Nev., May 29.

According to the Air Combat Command Accident Investigation Report released today, there is clear and convincing evidence the mishap was caused by the incorrect installation of the ninth stage compressor blade locks in the engine's core module. The incorrect installation allowed three stage blades to release during the test run, resulting in a severe compressor stall and subsequent damage to the engine prior to installation in an F-15E. The eighth, ninth and eleventh stage blade locks and the seventh stage snap ring were incorrectly installed and technical order procedures were not followed. Since the technical order procedures were not followed, the faulty installation went undetected.

The report cited faulty maintenance procedures and deficient supervision as contributing factors to the incident.

Damage to the engine was valued at more than $1.6 million. There was no other damage to government or private property and there were no injuries.