NTSB Identification: LAX85FA071.
The docket is stored on NTSB microfiche number 26666.
Accident occurred Wednesday, December 12, 1984 in GORMAN, CA
Aircraft: GRUMMAN AMERICAN AA-5A, registration: N26131
Injuries: 2 Fatal.

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.

THE PLT WAS ON A NIGHT X-COUNTRY FLT. WHEN THE ACFT DID NOT ARRIVE AT ITS DESTINATION, A SEARCH WAS INITIATED. ON 12/12/84, THE PLANE WAS FOUND WHERE IT HAD IMPACTED AN AREA OF RISING TERRAIN WHILE APPROACHING THE TEHACHAPI MOUNTAINS. IMPACT OCCURRED ON A RELATIVELY FLAT AREA AT AN ELEVATION OF 4250 FT WHILE THE ACFT WAS IN A WINGS LEVEL, TAIL LOW ATTITUDE & ON A HEADING OF 336 DEG. FROM 1/2 TO 2 MI WEST OF THE ACCIDENT SITE, THE TERRAIN ROSE RAPIDLY TO 6700 FT. THE AREA WINDS ALOFT AT 9000 & 12,000 FT WERE FORECAST TO BE FROM 333 DEG AT 45 KTS & 320 DEG AT 54 KTS, RESPECTIVELY. NO EVIDENCE OF A PREIMPACT MECHANICAL MALFUNCTION OR FAILURE WAS FOUND.

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

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


Contributing Factors

TERRAIN CONDITION..ROUGH/UNEVEN


Contributing Factors

LIGHT CONDITION..NIGHT


Contributing Factors

TERRAIN CONDITION..MOUNTAINOUS/HILLY


Contributing Factors

WEATHER CONDITION..UNFAVORABLE WIND


Contributing Factors

WEATHER CONDITION..HIGH WIND


Contributing Factors

WEATHER CONDITION..MOUNTAIN WAVE


Contributing Factors

WEATHER CONDITION..DOWNDRAFT

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