NTSB Identification: LAX87LA324.
The docket is stored on NTSB microfiche number 36419.
Accident occurred Saturday, September 05, 1987 in LEE VINING, CA
Probable Cause Approval Date: 04/24/1989
Aircraft: CESSNA 172N, registration: N6122G
Injuries: 2 Minor.

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

WHILE FLYING OVER MOUNTAINOUS TERRAIN. THE PILOT INADVERTENTLY FOLLOWED THE WRONG ROAD & WENT INTO A BOX CANYON AREA. HE STATED THE VISIBILITY WAS ABOUT 5 MILES & HE DID NOT SEE THE UPCOMING RISING ELEVATION. EVENTUALLY, HE GOT INTO A SITUATION WERE THE ACFT COULD NOT OUTCLIMB THE RISING TERRAIN & THERE WAS INSUFFICIENT SPACE TO REVERSE COURSE. SUB- SEQUENTLY, THE ACFT HIT A TREE & CRASHED AT AN ELEVATION OF ABOUT 10,500'. THE PLT INDCD THE ENG WAS RUNNING NORMALLY BEFORE THE ACDNT.

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

IN-FLIGHT PLANNING/DECISION..IMPROPER..PILOT IN COMMAND

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

BECAME LOST/DISORIENTED..INADVERTENT..PILOT IN COMMAND

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

PROPER ALTITUDE..NOT MAINTAINED..PILOT IN COMMAND


Contributing Factors

TERRAIN CONDITION..MOUNTAINOUS/HILLY


Contributing Factors

TERRAIN CONDITION..RISING


Contributing Factors

TERRAIN CONDITION..BLIND/BOX CANYON


Contributing Factors

WEATHER CONDITION..HIGH DENSITY ALTITUDE


Contributing Factors

OBJECT..TREE(S)

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