minor injuries. Investigators found that the manufacturer advised against attempting low-altitude, low-speed maneuvers without hydraulic assistance, as the aircraft could become very difficult to control. The accident was attributed to "The pilot's loss of control due to his not maintaining adequate airspeed and altitude during a simulated hydraulic flight control failure. Contributing to the accident was the flight instructor's inadequate supervision and delayed remedial response." See also List of airports in Texas References External links Alliance Air Services 1989 establishments in Texas Airports established in 1989 Airports in Fort Worth, Texas Airports in Tarrant County, Texas Airports in Texas Economy of Fort Worth, Texas