NTSB Identification: MKC86LA154.
The docket is stored on NTSB microfiche number 31484.
Accident occurred Tuesday, July 22, 1986 in NORFOLK, NE
Aircraft: PIPER PA-23-250T, registration: N62719
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.

A FIRE STARTED INFLIGHT IN THE LEFT WHEEL WELL AND NACELLE AREA JUST AFTER THE PILOT TURNED ON THE ELECTRIC FUEL PUMPS DURING THE TURN TO FINAL APPROACH. THE AIRPLANE WAS LANDED AND THE PILOT EVACUATED SAFELY. ACCORDING TO WITNESSES, THE AIRPLANE APPEARED TO BE ON A LEVEL PLANE WHEN THE PILOT EVACUATED THE AIRPLANE BUT LATER AFTER THE FIRE PROGRESSED, THE LEFT SIDE OF THE AIRPLANE DROPPED WHEN THE FIRE BURNED THROUGH THE LEFT MAIN GEAR AREA AND THE LEFT MAIN SPAR. AFTERWARD, THE LEFT MAIN GEAR APPEARED TO BE COLLAPSED FROM THE FIRE. A FRACTURED FUEL LINE WAS FOUND NEAR THE LEFT ENGINE DRIVEN FUEL PUMP. A METALLURGIST STATED THE FRACTURE HAD NOT ORIGINATED DURING THE TIGHTENING PROCESS AND THE GEOMETRY OF THE SEPARATED SURFACES WAS TYPICAL OF BENDING LOADS.

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

FUEL SYSTEM,LINE..FAILURE,TOTAL

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