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The floatplane was taking off towards the south into a wind reported as south east to south gusting to 30 kt. Water conditions were described as choppy. After a run of about 300 m, just prior to the aircraft becoming airborne, the pilot reported hearing a loud bang. The aircraft immediately commenced a sharp left turn, followed by several rocking oscillations. The pilot shut down the engine after which the aircraft slowed and stopped in a left wing low attitude with the wingtip in the water. The front landing wire attachment bracket on the left float and the aft landing wire attachment bracket at the top of the rear right strut had both failed at their respective bolt holes. Metallurgical examination found that both brackets were extensively corroded, with the bracket cross sections being reduced by about 30 percent in both cases. It was considered that the reduced cross sectional area was insufficient to sustain normal applied loads. It appeared that the front left float bracket failed first, followed by the rear right strut bracket, resulting in pivotal movement of the left float.

Download Final Report
[ Download PDF: 22KB]
General details
Date: 18 November 1990 Investigation status: Completed 
Time: 1545  
Location   (show map):Palm Beach Investigation type: Occurrence Investigation 
State: New South Wales Occurrence type: Airframe - Other 
Release date: 18 September 1991 Occurrence class: Technical 
Report status: Final Occurrence category: Accident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: de Havilland Canada 
Aircraft model: DHC-2 
Aircraft registration: VH-AQA 
Serial number: 1467 
Type of operation: Air Transport Low Capacity 
Damage to aircraft: Substantial 
Departure point:Palm Beach NSW
Departure time:N/A
Destination:Rose Bay NSW
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