Accident Cessna 310Q C-GONG, Friday 27 July 1984

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Date:	Friday 27 July 1984
Time:	17:20 LT
Type:	Cessna 310Q
Owner/operator:	Private
Registration:	C-GONG
MSN:	1048
Total airframe hrs:	1158 hours
Engine model:	Continental IO-470-VO
Fatalities:	Fatalities: 0 / Occupants: 7
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	Havre, MT - United States of America
Phase:	En route
Nature:	Private
Departure airport:	PINCHER CREEK
Destination airport:	Minot, SD (KMDT)
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
DURING CRUISE FLIGHT WITH FIVE ADULTS AND TWO INFANTS ON BOARD, THE PILOT NOTED LEFT ENGINE OIL PRESSURE DECREASING AND A VISIBLE OIL LEAK. ENGINE SHUTDOWN AND PROPELLER FEATHER WERE ACCOMPLISHED BUT ALTITUDE COULD NOT BE MAINTAINED. A FORCED LANDING WAS PERFORMED IN AN OPEN FIELD. AN 'O' RING FAILURE WAS FOUND ON THE LEFT ENGINE.

Probable Cause:

Accident investigation: