NTSB Identification: DEN83LA142.
The docket is stored on NTSB microfiche number 25555.
Accident occurred Thursday, June 16, 1983 in HYSHAM, MT
Aircraft: CESSNA 182Q, registration: N7506S
Injuries: 2 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 REPORTED THAT HE ABORTED HIS X-COUNTRY FLT DUE TO IMC AHEAD. WHILE RETURNING TO BILLINGS, MT, OIL & SMOKE STARTED COMING FROM THE ENG COMPARTMENT & OIL COVERED HIS WINDSHIELD. THE ENG BEGAN LOSING POWER, SO HE SHUT IT DOWN. WHILE MAKING AN EMERGENCY LANDING ON SOFT TERRAIN, THE NOSE GEAR COLLAPSED. AN EXAM REVELAED THAT THE #5 CYLINDER HAD NO COMPRESSION. AN INSPECTION OF THE CYLINDER THRU THE SPARK PLUG HOLE WITH A FLASHLIGHT REVEALED A HOLE HAD BURNED DOWN THE SIDE OF THE PISTON.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:ENGINE ASSEMBLY,PISTON..BURNED
The National Transportation Safety Board determines the probable cause(s) of this accident to be:ENGINE ASSEMBLY,PISTON..LEAK
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