NTSB Identification: SEA82FYP07
14 CFR Part 91: General Aviation
Accident occurred Friday, April 16, 1982 in RICHLAND, WA
Probable Cause Approval Date: 04/16/1983
Aircraft: BEECH 77, registration: N1814B
Injuries: 1 Serious.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

WHILE FLYING OVER A GOVERNMENT RESERVATION AT NIGHT, THE AIRCRAFT STRUCK THE SIDE OF A MOUNTAIN ABOUT 1000 FT BELOW THE MOUNTAIN TOP. A SEAT BELT "D-RING" FAILED AND THE PILOT WENT THROUGH THE WINDSHIELD WHEN THE AIRCRAFT STRUCK A SLOPE OF ABOUT 60 DEGREES. THE PILOT AND AIRCRAFT WERE FOUND THE NEXT MORNING WHEN A US ARMY HELICOPTER AIRCREW HEARD THE ELT SIGNALS. THE PILOT SUFFERED FROM EXPOSURE, A BROKEN LEG, AND FACIAL INJURIES.

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

ALTITUDE..MISJUDGED..PILOT IN COMMAND

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

CLEARANCE..MISJUDGED..PILOT IN COMMAND


Contributing Factors

LIGHT CONDITION..DARK NIGHT


Contributing Factors

TERRAIN CONDITION..HIGH TERRAIN


Contributing Factors

TERRAIN CONDITION..MOUNTAINOUS/HILLY

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