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The aircraft was engaged on a navigational exercise from Bankstown to Dubbo via Bathurst and return. Due to unfavourable weather, it was decided at Bathurst to return to Bankstown. Approaching Katoomba at 4000 feet, deteriorating weather required a diversion south of track over Lake Burragorang and a descent to 3500 feet. Rich mixture was selected prior to the descent. When cruise power was reinstated at 3500 feet, the engine suffered a substantial loss of power. The instructor took control and carried out a trouble check, which included the selection of carburettor heat, but was unable to prevent a total loss of power. A glide approach was made towards the only cleared area, a road near the lake shore. During the glide, it became apparent the aircraft would not reach the road. The aircraft was ditched into the water, about 10 metres from the shore. All three occupants were able to evacuate the cabin and make their way to the shore. The reason for the engine failure could not be positively established. However, given the high relative humidity at 3500 feet and rich mixture setting, the loss of power was consistent with the effects of carburettor induction icing.

Download Final Report
[ Download PDF: 23KB]
 
 
 
 
General details
Date: 29 May 1990 Investigation status: Completed 
Time: 1411 Investigation type: Occurrence Investigation 
Location:Lake Burragorang  
State: New South Wales  
Release date: 23 July 1991 Occurrence category: Accident 
Report status: Final Highest injury level: None 
 
Aircraft details
Aircraft manufacturer: Piper Aircraft Corp 
Aircraft model: PA-28 
Aircraft registration: VH-NOR 
Serial number: 28-8090188 
Type of operation: Flying Training 
Damage to aircraft: Substantial 
Departure point:Bathurst NSW
Departure time:1340
Destination:BANKSTOWN NSW
 
 
 
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