De Havilland Dhc Safety Record

The pilot's inadequate in-flight planning/decision making, his continued VFR flight into instrument meteorological conditions, and his failure to maintain obstacle clearance. Factors contributing to the accident were low ceilings due to smoke, rain, and mist.

The pilot's failure to use a checklist to ensure the airplane was in the proper landing configuration, which precipitated an inadvertent water landing on amphibious floats with the wheels extended. A factor contributing to the accident was the pilot's failure to secure the cargo in the aft cabin.

The pilot's failure to maintain clearance from terrain while maneuvering inside a box/blind canyon, resulting in an in-flight collision with terrain. A factor contributing to the accident was the box/blind canyon.

the King Air pilot's inadequate in-flight planning/decision in that he failed to remain in the agreed on formation position, resulting in one of his skydiver's contacting the propeller of the de Havilland airplane. A contributing factor was the lack of total experience of both pilots in multiengine formation air drop flights.

the pilot's continued VFR flight into IMC conditions, by failing to maintain altitude, and descending from VFR conditions into IMC, which resulted in him subsequently impacting with trees. Factors in this accident were: reduced visibility due to dark night and fog. An additional factor was the pilot was not certified for instrument flight.

The pilot's failure to ensure attainment of adequate airspeed prior to initiating a steep turn at low altitude, resulting in an accelerated stall. A factor contributing to the occurrence of the accident was the aircraft's low altitude. Factors contributing to the severity of the accident included a water impact, and jammed/restricted doors due to impact damage resulting in degraded aircraft evacuation capability.

The pilot's failure to maintain adequate airspeed which resulted in an inadvertent stall. Factors associated with this accident were the pilot's unfamiliarity with the geographic area, the low clouds, his becoming disoriented, and the blind canyon into which he flew. An additional factor was the intentionally disabled stall warning system.

The pilot's inadequate procedures/directives when he allowed a passenger to exit the cabin area while the propeller was still turning, and the passenger's failure to follow the pilot's instructions to stay away from the propeller. A factor associated with the accident is the passenger's unfamiliarity with aircraft.

The pilot's excessive climb and turning maneuver at low altitude, the pilot's inadvertent stall, and the intentional operation of the airplane with the required stall warning system disabled. Factors associated with this accident were the pilot's overconfidence in the modified airplane's ability, the uninstalled ventral fin, inadequate compliance with the STC by the company, unclear information by the manufacturer, and inadequate surveillance by the FAA.

a loss of engine power due to the fatigue failure of the no.1 exhaust push rod. Factors contributing to the accident were: insufficient information on pushrod inspection and overhaul from the manufacturer, unsuitable terrain available for landing, and the pilot's failure to maintain airspeed during the approach which led to an inadvertent stall.

loss of the right engine propeller control oil, which led to an overspeed of the right engine and propeller, and necessitated a shut-down of the right engine; and failure of the pilot to maintain adequate altitude/distance from terrain during visual approach for a precautionary landing at an alternate airport. Factors relating to the accident were: fluctuation of the left engine power, premature lowering of the airplane flaps, and an encounter with adverse weather conditions (including high winds, severe turbulence, and white-out conditions) during the approach.

the pilot's inadequate compensation for wind conditions, and failure to maintain adequate airspeed, which resulted in an inadvertent stall and collision with terrain (water). A factor associated with the accident was the gusty wind condition.

continued flight by the pilot into adverse weather condition, and his failure to maintain adequate altitude/clearance from mountainous terrain. Factors related to the accident were the high/mountainous terrain, and weather conditions that included low ceilings.

The pilot's decision to continue VFR flight into instrument meteorological conditions, and his failure to maintain adequate clearance from rising terrain. Factors associated with the accident were the rising terrain and clouds.

THE PARACHUTIST'S FAILURE TO FOLLOW PROCEDURES ON EXITING THE AIRCRAFT. A FACTOR WAS THE PARACHUTIST'S INCAPACITATION DUE TO HITTING HIS HEAD ON THE DOORWAY FLOOR.

IMPROPER IN-FLIGHT PLANNING/DECISION BY THE PILOT, AND HIS FAILURE TO REMAIN CLEAR OF MOUNTAINOUS TERRAIN. THE BOX/BLIND CANYON AND PROXIMITY OF MOUNTAINOUS TERRAIN WERE RELATED FACTORS.

THE PILOT OF THE VFR ONLY FLIGHT INTENTIONALLY ENTERED INSTRUMENT METEOROLOGICAL CONDITIONS. FACTORS IN THE ACCIDENT WERE THE INADEQUATE PROCEDURES/DIRECTIVES BY THE COMPANY/OPERATOR MANAGEMENT CONCERNING CONTINUED VFR FLIGHT IN MARGINAL WEATHER CONDITIONS AND THE FOG.

VFR FLIGHT BY THE PILOT INTO INSTRUMENT METEOROLOGICAL CONDITIONS (IMC), AND HIS FAILURE TO MAINTAIN ALTITUDE (CLEARANCE) ABOVE THE SURFACE OF THE RIVER. FACTORS RELATED TO THE ACCIDENT WERE: THE ADVERSE WEATHER CONDITIONS, AND THE SURFACE CONDITION OF THE RIVER (GLASSY WATER).

Were the fuel injection line contamination resulting in fuel starvation; the pilot's inadequate 100-hour inspection; the pilot's improper decision to return to the airport at a low altitude; and his failure to maintain the proper airspeed which resulted in a stall.