Mitsubishi MU-2B Safety Record

the pilot's inadvertent flight into thunderstorm activity that resulted in the loss of control, design limits of the airplane being exceeded and subsequent in-flight breakup. A contributing factor was the failure of air traffic control to use available radar information to warn the pilot he was about to encounter moderate, heavy, and extreme precipitation along his route of flight,

the pilot’s loss of aircraft control during the initial climb which was precipitated by the sudden loss of thrust and increase in drag from the right engine, and the pilot’s failure to adhere to the published emergency procedures regarding the position of the failed engine power lever. Contributing to the accident was the fatigue failure of the right engine’s ring gear support for undetermined reasons, which rendered the propeller’s automatic drag reducing system inoperative.

The pilot's improper in-flight decision not to land at the departure runway or other available airports during the emergency descent, and his failure to maintain clearance from a vehicle and terrain. Contributing factors were a false engine fire warning light, inadequate maintenance by company personnel, a contaminated fire warning detection loop, and night conditions.

The pilot’s failure to fly a stabilized instrument approach at night which resulted in controlled flight into terrain. Contributing factors were; the dark night, low clouds, the inadequate design and function of the airport facility’s Minimum Safe Altitude Warning System (MSAW), and the FAA’s inadequate procedure for updating information to ATC controllers.

The pilot's failure to obtain minimum controllable airspeed during the takeoff climb, which resulted in a loss of aircraft control when the left engine lost partial power. A fatigue failure to an oil tube, which resulted in the partial power loss to the left engine, procedures/directives not followed by the pilot, and the pilot's lack of recent experience and no recurrent training in the type of aircraft were factors.

the pilot's failure to maintain minimum controllable airspeed during the night visual approach resulting in a loss of control and uncontrolled descent into terrain. A contributing factor was the precautionary shutdown of the left engine for undetermined reasons.

The pilot's failure to maintain airspeed during a sharp turn, which resulted in an inadvertent stall and subsequent impact with terrain. Factors included the pilot's failure to fly to the intended point of landing, and his abrupt course reversal back towards it.

The pilot's failure to maintain control of the airplane following a shutdown of the left engine during a night visual approach. A factor contributing to the accident was the dark night.

the bank couriers inadequate visual lookout, as he approached an airplane with operating engines. A factor was the lack of guidance and training from the bank, for working around airplanes with operating engines.

The failure of the pilot to maintain airspeed (Vs) while maneuvering following inadvertent encounter with clouds resulting in an inadvertent stall and uncontrolled descent and subsequent in-flight collision with trees, a wall, and a building.

Improper maintenance/installation and and inadequate inspection of the airplane's flap torque tube joints during routine maintenance by company maintenance personnel, which resulted in the right flap torque tube assembly coupler becoming detached and the flaps developing asymmetrical lift when extended, which resulted in an uncontrolled roll, a descent, and an impact with a tree during approach to land.

the pilot's loss of aircraft control inflight for reasons undetermined. Contributing factors were the pilot's inadequate transition/upgrade training and his total lack of experience in aircraft make/model.

The pilot's failure to maintain airplane control following a loss of right engine power, which resulted in impact with terrain in an uncontrolled descent. A contributing factor was the loss of right engine power as a result of the fatigue failure of the propeller shaft coupling.

The pilot's failure to follow instrument flight procedures resulting in a collision with a tree. A factor related to the accident was the low cloud ceiling.

the pilot failed to follow the flight manual procedures and did not engage the Continuous Ignition system resulting in both engines flaming out when the air induction system was blocked with ice. Additional factors to the accident included the hilly terrain, the icing conditions, and the operator not complying with a Service Bulletin for the installation of an auto-ignition system.

the pilot's failure to maintain the minimum controllable airspeed following a loss of engine power during the initial takeoff climb. Contributing factors to the accident were both pilot's lack of total experience in the make and model of the accident airplane and the loss of right engine power for an undetermined reason.

the pilot failed to maintain control of the aircraft and made an improper evaluation of the weather. Additional factors were flying a test flight at night with the icing conditions in the clouds.

the pilot in command failed to maintain control of the aircraft. A factor was the lack of experience of the pilot and copilot in the type and model of aircraft. An additional factor was the pilot did not follow the proper procedure when the flaps were raised before 140 knots was attained during a simulated single engine failure.

continued flight by the flightcrew into icing conditions with known faulty deice equipment; structural (airframe) ice; and failure of the flight crew to maintain adequate airspeed, which resulted in the loss of aircraft control and collision with terrain. A factor relating to the accident was: the en route weather (icing) condition, which was not forecast (inaccurate forecast).