NTSB Identification: LAX83FXQ02.
The docket is stored on NTSB microfiche number 22087.
Accident occurred Monday, January 03, 1983 in MAMMOTH LAKES, CA
Aircraft: PIPER PA-28-235, registration: N1931T
Injuries: 1 Uninjured.
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.
AFTER DEPARTURE FROM THE MAMMOTH LAKES ARPT (ELEV 7128 FT), THE ACFT WAS SLOW TO CLIMB & ENG POWER BEGAN TO DETERIORATE. IT WAS DARK & THE PLT WAS UNABLE TO REACH THE DEPARTURE ARPT, SO HE BEGAN AN EMERGENCY LANDING ON THE NORTHBOUND LANES OF HIGHWAY 395. ALL OF THE TRAFFIC WAS SOUTHBOUND IN THAT AREA. THE PLT HAD DIFFICULTY SEEING THE NORTHBOUND LANES. DURING THE LANDING, THE RIGHT WING HIT A SNOWBANK ON THE RIGHT SIDE OF THE ROAD. NO CAUSE FOR THE ENG MALFUNCITON WAS FOUND.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:REASON FOR OCCURRENCE UNDETERMINED
WEATHER CONDITION..HIGH DENSITY ALTITUDE
LIGHT CONDITION..DARK NIGHT
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