NTSB Identification: FTW85LA314.
The docket is stored on NTSB microfiche number 29629.
Accident occurred Saturday, August 10, 1985 in FALFURRIAS, TX
Aircraft: PIPER PA-28-140, registration: N1020D
Injuries: 4 Uninjured.

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

THE PLT EXPERIENCED IN-FLT DIRECTIONAL GYRO PROBLEMS (EXESSIVE PRECESSING) WHICH RESULTED IN LARGE DEVIATIONS ON EITHER SIDE OF HIS PLANNING FLT PATH. AFTER REALIZING IT WAS INACCURATE HE CONTINUED USING IT FOR SOME OF HIS HEADING INFO. THE ACFT CONTINUED TO 'WANDER' UNTIL FUEL EXHAUSTION OCCURRED. THE ACFT WAS THEN FORCE LANDED ON A SMALL RANCH ROAD DURING THE HOURS OF DARKNESS WITH THE AID OF ITS LANDING LIGHT.

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

FLUID,FUEL..EXHAUSTION

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

IN-FLIGHT PLANNING/DECISION..POOR..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


Contributing Factors

LIGHT CONDITION..DARK NIGHT


Contributing Factors

TERRAIN CONDITION..NONE SUITABLE


Contributing Factors

OBJECT..FENCE


Contributing Factors

FLIGHT/NAV INSTRUMENTS,DIRECTIONAL GYRO..FAILURE,TOTAL


Contributing Factors

OPERATION WITH KNOWN DEFICIENCIES IN EQUIPMENT..PERFORMED..PILOT IN COMMAND

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