I00-017-0176
	SOUTH AFRICAN CIVIL AVIATION AUTHORITY INCIDENT REPORT – EXECUTIVE SUMMARY
Date of Incident	6 August 2000		Time of Incident				1400 Z
Aircraft Registration	ZS-IDO		Type of Aircraft				Cessna 337
Pilot-in-command Licence Type			Private				Licence Valid			Yes
Pilot-in-command Flying Experience			Total Flying Hours		676.8		Total Hours on Type			377.8
Type of Operation			Private
Last point of departure			FABR (Bredasdorp)
Next point of intended landing			FABR (Bredasdorp)
Location of the incident site with reference to easily defined geographical points (plus GPS readings if possible)
Overberg (Flight Test and Development Center)
Meteorological Information		CAVOK
Number of people on board		1+5		No. of people injured		Nil		No. of people killed			Nil
Synopsis
The private pilot was accompanied by five passengers on a private local flight in the Bredasdorp region. The pilot was flying 1000’ AMSL from Arniston to Cape Infanta and was abeam the De Hoop Nature Reserve when he noticed a drop in the rear engine oil pressure. He then headed back to Bredasdorp and was overhead Arniston when he experienced engine vibration from the rear engine. The pilot reduced power to the said engine to approximately 20” manifold pressure and 2300 rpm. A few minutes thereafter, two loud bangs were heard approximately 20s apart. The pilot then feathered the rear engine and turned towards Overberg Air Force base where he carried out an emergency landing on runway 35. The landing was uneventful and nobody was injured. Initial inspection revealed puncture holes in the engine crankcase caused by internal component failure.
Probable Cause
Engine seizure occurred as a result of No. 2 main bearing being starved of its oil supply, which resulted in bearing seizure with resultant engine damage. It was not possible to identify the initial failure or the cause thereof.