Accident Cessna 177RG Cardinal RG VH-IRO, Saturday 8 October 1983

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Date:	Saturday 8 October 1983
Time:	09:41
Type:	Cessna 177RG Cardinal RG
Owner/operator:
Registration:	VH-IRO
MSN:
Fatalities:	Fatalities: 0 / Occupants: 2
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	70km NW of Kingston, SA - Australia
Phase:	Landing
Nature:	Private
Departure airport:	Parafield Airport, SA (YPPF)
Destination airport:	YRBE
Investigating agency:	BASI
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
During cruise at about 1000 feet above ground level the engine began to run roughly and the pilot observed falling oil pressure indications. A severe engine vibration then developed and the pilot, after selecting a suitable forced landing area, shut down the engine. He delayed lowering the landing gear until he was satisfied that the selected area had a firm surface. The gear was selected down on very late final, but only the nose gear had time to become partially extended before touchdown. Lack of sufficient tension of a nut securing a conrod bolt of Number 1 cylinder allowed the conrod bearing cap to loosen causing loss of oil pressure and subsequent engine failure.

Accident investigation: