Investigation determines cause of T-1A accident Published May 11, 2004 RANDOLPH AIR FORCE BASE, Texas (AFPN) -- Air Force officials completed their investigation of an accident where a T-1A Jayhawk ran off the runway Aug. 16 after landing at Keesler Air Force Base, Miss. The accident caused an estimated $2.5 million in structural damage to the aircraft.Accident investigation board officials determined the accident was caused by a combination of factors during the landing sequence. The aircrew was on a cross-country training mission at the time.First, student pilot 2nd Lt. Tiffany Ley, assigned to the 86th Flying Training Squadron at Laughlin Air Force Base, Texas, flew faster than the computed approach and landing speeds, and she maintained higher than idle thrust for the first few seconds after touchdown. As a result, the speed brakes and spoilers could not deploy.Also, the runway was wet, and the aircraft went into a hydroplane skid after instructor pilot 1st Lt. Nancy Badgett, also assigned to the 86th FTS, engaged the emergency brakes. Investigators determined that the crew was inexperienced and did not recognize that the anti-skid brakes were operating.The aircraft came to a stop 190 feet off the end of the runway. Neither crewmember was injured. (Courtesy of Air Education and Training Command News Service)