NTSB Identification: LAX89FA076.
The docket is stored on NTSB microfiche number 38426.
Accident occurred Saturday, December 31, 1988 in WRIGHTWOOD, CA
Probable Cause Approval Date: 04/24/1990
Aircraft: PIPER PA-28-180, registration: N5369L
Injuries: 2 Fatal,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.

ACCORDING TO THE PASSENGER, DURING A CROSS COUNTRY FLIGHT THE AIRPLANE ENCOUNTERED INSTRUMENT METEOROLOGICAL CONDITIONS. THE PILOT FLEW THE AIRPLANE TOWARD A MOUNTAIN RANGE AND ENTERED A VALLEY WITH RISING TERRAIN. STILL IN IMC, JUST PRIOR TO THE ACCIDENT, THE PASSENGER REPORTED, THE PILOT SAW THE TERRAIN AND BEGAN A LEFT TURN. THE AIRPLANE COLLIDED WITH THE TERRAIN DURING THE MANEUVER. THERE WERE NO MECHANICAL FAILURES OR MALFUNCTIONS NOTED DURING THE POST CRASH INVESTIGATION.

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

FLIGHT INTO KNOWN ADVERSE WEATHER..CONTINUED..PILOT IN COMMAND

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

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


Contributing Factors

WEATHER CONDITION..CLOUDS


Contributing Factors

TERRAIN CONDITION..MOUNTAINOUS/HILLY


Contributing Factors

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


Contributing Factors

LACK OF FAMILIARITY WITH GEOGRAPHIC AREA..PILOT IN COMMAND


Contributing Factors

PREFLIGHT PLANNING/PREPARATION..INADEQUATE..PILOT IN COMMAND

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