Қалыптан шығу және бақылау жоғалту қаупі: Авиациялық апаттардың алдын алу

Flight attitude or airspeed limits exceeded risking loss of control
Aircraft upset is an unacceptable condition, in aircraft operations, in which the aircraft flight attitude or airspeed is outside the normally intended limits. This may result in the loss of control (LOC) of the aircraft, and sometimes the total loss of the aircraft itself. Loss of control may be due to excessive altitude for the airplane's weight, turbulent weather, pilot disorientation, or a system failure. defines upset prevention and upset recovery as to prevent loss of control accidents due to aircraft upset after inadvertently entering an extreme or abnormal flight attitude. A Boeing compiled list determined that 2,051 people died in 22 accidents in the years 1998–2007 due to LOC accidents.

Loss of control as a factor in aviation accidents came into the spotlight with the 1994 crash of USAir Flight 427, which killed all 127 passengers and 5 crew members on board. In their report on the crash, the U. S. NTSB stated that prior to the crash they "had issued a series of safety recommendations over a 24 year period, asking the FAA to require air carriers to train pilots in recoveries from unusual flight attitudes. Throughout this period, the Safety Board was generally not satisfied with the FAA's responses to these recommendations; specifically, the Board disagreed with the FAA's responses that cited the inadequacy of flight simulators as a reason for not providing pilots with the requested training. However, after the USAir Flight 427 accident and the October 31, 1994, ATR 72 accident involving American Eagle Flight 4184 near Roselawn, Indiana, the FAA issued guidance to air carriers, acknowledging the value of flight simulator training in unusual attitude recoveries and encouraging air carriers to voluntarily provide this training to their pilots." Some carriers did implement their own voluntary training programs, following those accidents, and the NTSB regarded those programs as "excellent". The second revision of that document was released in 2008 and is available at the FAA's website. New FAA rules are expected to be finalized in 2010, requiring specific training for pilots to recover from aircraft upset incidents. Upset Prevention and Recovery Training (UPRT) provider, Aviation Performance Solutions, joined the Royal Aeronautical Society team in 2009 to help develop global solutions for overcoming Loss of Control In Flight (LOC I), the possible resulting flight condition following an airplane upset.