NTSB Identification: BFO88FA063.
The docket is stored on NTSB microfiche number 37106.
Accident occurred Saturday, July 02, 1988 in FRIENDLY, MD
Probable Cause Approval Date: 12/21/1988
Aircraft: PIPER PA-23, registration: N1021P
Injuries: 2 Uninjured.

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.

SHORTLY AFTER TAKEOFF AT AN ALTITUDE OF 200 FT AGL, A POWER LOSS WAS EXPERIENCED ON THE LEFT ENGINE. ACCORDING TO THE PLT, WHEN THE THROTTLE WAS RETARDED TO VERIFY THE ENGINE FAILURE, THE ENGINE SEEMED TO 'COME BACK TO LIFE'. THE THROTTLE WAS ADVANCED AND ONCE AGAIN A LOSS OF POWER WAS EXPERIENCED. UNABLE TO GAIN ENOUGH ALTITUDE TO CLEAR THE SURROUNDING TERRAIN AND RETURN TO THE AIRPORT, THE PLT ELECTED TO MAKE A GEAR-UP FORCED LANDING IN A FIELD. THE AIRPLANE SLID FOR 333 FT BEFORE COMING TO REST. INSPECTION OF THE AIRPLANE, ENGINE AND ENGINE COMPONENTS FAILED TO REVEAL ANY MECHANICAL FAILURE/MALFUNCTION. THE ONLY DISCREPANCY FOUND WERE SEVERAL PIECES OF A SILICON RUBBER TYPE MATERIAL INSIDE THE LEFT MAIN FUEL TANK NEAR THE FUEL PICK-UP LINE SCREEN.

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

FUEL SYSTEM,TANK..FOREIGN OBJECT

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

FUEL SYSTEM,SCREEN..BLOCKED(PARTIAL)




Contributing Factors

TERRAIN CONDITION..RISING


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