Aviation safety investigations & reports

Icing event, 130 km north-west Brisbane, Qld; 10 February 2005, VH-SBI, de Havilland Canada DHC-8-315

Investigation number:
200500860
Status: Completed
Investigation completed

Summary

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[Download  PDF: 163KB]
 

On 10 February 2005, a de-Havilland Canada Dash 8-315 aircraft, registered VH-SBI, was enroute from Gladstone to Brisbane Airport, Qld, on a regular public transport service. The aircraft was operating in instrument meteorological conditions and had accumulated ice on the airframe, wings, and propellers.

During the climb out of Gladstone, the anti-ice and de-icing equipment were selected ON in response to the inclement weather. While in the cruise at flight level 210, air traffic control (ATC) instructed the crew to 'set course Maleny time 24'. The flight crew acknowledged ATC and reduced power, in order to make good the instruction.

When the flight crew reduced speed in order to comply with the ATC instruction, they noticed a number of indications that they suspected were as a result of ice accretion. After initially increasing power, the crew again reduced power in response to an engine temperature warning. That power reduction was accompanied by the activation of the aircraft's stick shaker warning. The crew recovered the aircraft and landed at Brisbane without further incident.

Following a company investigation, the operator provided additional training for the flight crew and amended the company operations manual to specifically address the minimum speeds for operations in and out of icing conditions.

Download Final Report
[Download  PDF: 163KB]
 
 
 
General details
Date: 10 February 2005   Investigation status: Completed  
Time: 19:35    
Location   (show map): 45 km WNW Maleny, (VOR)    
State: Queensland   Occurrence type: Abnormal engine indications  
Release date: 29 June 2007   Occurrence class: Technical  
Report status: Final   Occurrence category: Incident  
  Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer de Havilland Canada  
Aircraft model DHC-8  
Aircraft registration VH-SBI  
Serial number 605  
Type of operation Air Transport Low Capacity  
Damage to aircraft Nil  
Departure point Gladstone, Qld  
Destination Brisbane, Qld  
Last update 16 February 2016