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On 5 November 2008 at about 1838 Eastern Standard Time1, the flight crew of a Saab Aircraft AB 340B, registered VH-UYI, identified an incipient stall while flying a holding pattern in icing conditions. The aircraft's stall warning system did not activate. The pilot in command disconnected the autopilot and recovered the aircraft from the stall. During the recovery manoeuvre, both engines exceeded their maximum continuous operating temperature for an extended period. The manufacturer's Aircraft Operating Manual stated that the Saab 340B stall warning system had an activation level designed for a clean wing only. The manufacturer has issued updated operating procedures for flight in icing conditions, designed to prevent ice build-up on the airframe.

Download Final Report
[ Download PDF: 3.07MB]
 
 
 
 
General details
Date: 05 November 2008 Investigation status: Completed 
Time: 1838 EST Investigation type: Occurrence Investigation 
Location   (show map):Overhead Gayndah NDB Occurrence type:Icing 
State: Queensland Occurrence class: Environment 
Release date: 29 June 2010 Occurrence category: Serious Incident 
Report status: Final Highest injury level: None 
 
Aircraft details
Aircraft manufacturer: S.A.A.B. Aircraft Co 
Aircraft model: 340 
Aircraft registration: VH-UYI 
Serial number: 340B-283 
Type of operation: Air Transport Low Capacity 
Damage to aircraft: Minor 
Departure point:Moranbah, Qld
Destination:Brisbane, Qld
 
 
 
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Last update 02 March 2016