NTSB Identification: DEN83LA017
14 CFR Part 91: General Aviation
Accident occurred Thursday, November 11, 1982 in ENGLEWOOD, CO
Probable Cause Approval Date: 11/11/1983
Aircraft: MITSUBISHI MU-2B-60, registration: N274MA
Injuries: 1 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

THE AIRCRAFT WAS BEING REPOSITIONED FOR AN AIR TAXI OPERATION. THE PILOT BEGAN TAKING OFF ON A SLUSH COVERED RUNWAY. HE REPORTED THAT AS THE AIRCRAFT ACCELERATED, THE NOSEWHEEL BEGAN TO SLING WATER AND SLUSH OFF THE RUNWAY AND ONTO THE WINDSHIELD. HE RAISED THE NOSEWHEEL SLIGHTLY TO ELIMINATE THIS DISTRACTION. AT ABOUT THAT POINT, THE AIRCRAFT SWERVED TO THE RIGHT. REPORTEDLY, THE PILOT IMMEDIATELY MOVED BOTH POWER LEVERS BACK TO THE REVERSE TO ABORT. THE AIRCRAFT THEN SWERVED ABRUPTLY TO THE LEFT, BUT CONTINUED OFF THE RIGHT SIDE OF THE RUNWAY AND WENT DOWN AN EMBANKMENT. THE PILOT BROUGHT BOTH CONDITION LEVERS BACK TO THE EMERGENCY SHUT-OFF POSITION AS THE PLANE SKIDDED OFF THE RUNWAY. FROZEN SLUSH WAS FOUND ON THE AIRFRAME. A GRAYISH-WHITE RESIDUE, POSSIBLY FROM EVAPORATED WATER/STEAM WAS NOTED INSIDE THE EXHAUST STACK OF THE RIGHT ENG. BOTH PROP FEATHER VLVS WERE FOUND OPEN, BOTH ENG SHUT- OFF VLVS WERE CLOSED, BOTH PROP LATCH PINS WERE ENGAGED, BUT THE LEFT PROP WAS FEATHERED & THE RIGHT WAS IN FLAT PITCH.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

UNSUITABLE TERRAIN OR TAKEOFF/LANDING/TAXI AREA..SELECTED..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

MISCELLANEOUS..FROZEN



Contributing Factors

AIRPORT FACILITIES,RUNWAY/LANDING AREA CONDITION..SLUSH COVERED





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