PLAAF 6th Division @ China-Military.org
China's Air Force Enters the 21st Century Kenneth W. Allen, Glenn Krumel, Jonathan D. Pollack -- RAND 1995
Defense Intelligence Agency. People's Republic of China People's Liberation Army Air Force (May 1991, DIC-1300-445-91) [While our copy secured through the FOIA redacts the author's name, Ken Allen identifies himself as the author in multiple sources.]
Ken Allen. "PLA Air Force Organization" The People's Liberation Army as Organization: Reference Volume v1.0, James C. Mulvenon and Andrew N. D. Yang eds. (Santa Monico: RAND; 2002)

6th Fighter Division

The 6th Fighter Division was established in November 1950 at Anshan, Liaoning and was initially comprised of the 16th and 17th Regiments.

China-Military.org indicates that the 6th Division gained the 139th Regiment from the deactivated 47th Division sometime in 1998.

The 6th Fighter Division has a regiment of J-6s and a regiment of J-7s at Yinchuan and a regiment of J-6s at Tianshui.