NTSB Identification: SEA91LA199.
The docket is stored on NTSB microfiche number 44238.
Accident occurred Friday, August 02, 1991 in W. YELLOWSTONE, MT
Probable Cause Approval Date: 02/08/1993
Aircraft: CESSNA C-152, registration: N757PR
Injuries: 1 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 PILOT BECAME LOST/DISORIENTED ON A X-COUNTRY FLT WHEN HE FLEW OFF HIS AVAILABLE MAPS. HE DID NOT CALCULATE FUEL CONSUMPTION, BELIEVED HE WAS LOW ON FUEL AND ELECTED TO MAKE A PRECAUTIONARY LANDING ON A PUBLIC ROAD. THE ACFT STRUCK A SIGN ON LANDING ROLL, SWERVED RIGHT AND IMPACTED A GUARD RAIL. ABOUT 9 GALS OF FUEL WAS DRAINED FROM THE 26 GALS CAPACITY FUEL TANKS AFTER THE ACCIDENT. THE STU PILOT DID NOT HAVE A REQUIRED INSTR ENDORSEMENT FOR THE FLT.

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

THE FAILURE BY THE PILOT TO CALCULATE AIRCRAFT FUEL COMSUMPTION AND THE PILOT'S POOR INFLIGHT PLANNING. FACTORS RELATING TO THE ACCIDENT WERE THE INADEQUATE PREFLIGHT PLANNING BY THE PILOT, HIS LACK OF QUALIFICATION AND EXPERIENCE, AND HIS DISORIENTATION DURING THE FLIGHT.

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