NTSB Identification: MKC86LA084.
The docket is stored on NTSB microfiche number 30466.
Accident occurred Thursday, April 10, 1986 in PERRY, IA
Aircraft: PIPER PA-32R-301T, registration: N8178N
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.

SHORTLY AFTER TAKEOFF THE PIC NOTICED A LOSS OF ENGINE PWR AND FLAMES ERUPTING FROM THE ENGINE COWLING. THE PIC EXECUTED A TURN BACK TO THE ARPT AS THICK BLACK SMOKE FILLED THE COCKPIT. THE PIC OPENED THE SIDE VENT WINDOW TO MAINTAIN SIGHT OF THE GROUND AND LANDED THE ACFT IN AN OPEN FIELD. THE PIC EXITED THE ACFT AND USED AND HAND HELD EXTINGUISHER TO COMBAT THE FLAMES BELCHING FM THE ENGINE COWLING. THE ENSUING FIRE SUBSTANTIALLY DAMAGED THE ACFT. INSPECTION OF THE FIRE AREA REVEALED AN EXHAUST V-CLAMP LOOSE AND A DISTORTED GASKET AT THE EXHAUST JOINTS. THIS ALLOWED BLOW-BY OF THE HOT EXHAUST GASES WHICH MELTED THE FUEL BOOST PUMP CONNECTION SPEWING RAW FUEL INTO THE HOT ENGINE COMPARTMENT. THE EXHAUST SYSTEM HAD BEEN REMOVED TO REWORK A CYLINDER AND RE-INSTALLED 6 HOURS PRIOR TO THIS FLT. THE GASKET WAS DISTORTED DURING THE RE-ASSEMBLY OF THE EXHAUST SYSTEM.

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

MAINTENANCE,ALIGNMENT..IMPROPER..OTHER MAINTENANCE PERSONNEL

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

FUEL SYSTEM,LINE..FIRE


Contributing Factors

EXHAUST SYSTEM,CLAMP..LOOSE


Contributing Factors

FUEL SYSTEM,LINE FITTING..BURNED


Contributing Factors

EXHAUST SYSTEM,GASKET..DISTORTED


Contributing Factors

MAINTENANCE,INSPECTION..INADEQUATE..OTHER MAINTENANCE PERSONNEL

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