COMACC releases Letter to Airmen concerning F-15 return to flight Published Jan. 11, 2008 By Staff. Sgt. Mike Slater ACC Public Affairs LANGLEY AIR FORCE BASE, Va. -- Commander of Air Combat Command General John D.W. Corley released his latest letter to Airmen January 10. The letter heralds ACC Airmen's efforts and resolve during the many challenges that confronted the F-15 fleet over the past couple of months. To view the letter in .pdf format click here.