Aviation safety investigations & reports

Engine Failure; Lake Burbury, Tasmania; 5 February 2006; VH-KLP, Cessna Aircraft Company 208

Investigation number:
200600563
Status: Completed
Investigation completed

Summary

On 5 February 2006, at approximately 1725 Eastern Daylight-saving Time, a Cessna Aircraft Company 208 floatplane, registered VH-KLP, departed from Strahan, Tasmania on a chartered tourist flight over Frenchman's Cap with the pilot and ten passengers.
When the aircraft was over Frenchman's Cap at an altitude of 4,500 ft above mean sea level, the pilot observed that a chip detector light on the master caution warning panel had illuminated. The pilot decided to land the plane as soon as possible. During the diversion, five minutes after the chip detector light illuminated, a loud noise was heard and the engine lost power. The pilot immediately feathered the propeller and carried out a forced landing on Lake Burbury.

The pilot reported that the aircraft landed heavily and its forward speed could not be controlled. The aircraft came to a stop on a mud bank on the edge of Lake Burbury with its floats clear of the water. There were no reported injuries.

The engine was removed, disassembled and inspected, revealing damaged components with characteristics consistent with electrical discharge damage. The source of the electrical discharge damage was a starter-generator that was replaced due to a malfunction 18.7 hours prior to the engine failing. This was the forty-third reported starter-generator electrical discharge damage event reported to have taken place on PT6A series engines world-wide since 1992.

As a result of this investigation several safety recommendations have been issued to the aircraft manufacturer, the engine manufacturer, the Civil Aviation Safety Authority, Transport Canada and the US Federal Aviation Administration.

Download complete report [ PDF 3520 Mb]

Recommendations

[R20070015] [R20070016]  [R20070017]  [R20070018]  [R20070019]  [R20070020]  [R20070021]  [R20070022]  [R20070023]  [R20070024]

General details
Date: 05 February 2006   Investigation status: Completed  
Time: 1745 ESuT    
Location   (show map): 9km E Queenstown, Aerodrome    
State: Tasmania   Occurrence type: Engine failure or malfunction  
Release date: 09 October 2007   Occurrence category: Serious Incident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Cessna Aircraft Company  
Aircraft model 208  
Aircraft registration VH-KLP  
Serial number 20800260  
Type of operation Charter  
Damage to aircraft Minor  
Departure point Strahan, TAS  
Departure time 1722 ESuT  
Destination Strahan, TAS  
Crew details
Role Class of licence Hours on type Hours total
Pilot-in-Command Unknown
Last update 18 April 2018