Aviation safety investigations & reports

Fumes - Boeing 747-400 aircraft, 9M-MPE, Ceduna, SA, 20 April 2004

Investigation number:
200401390
Status: Completed
Investigation completed

Summary

The Boeing 747-400 aircraft, registered 9M-MPE, was conducting an international scheduled passenger flight from Kuala Lumpur, Malaysia to Melbourne. During cruise at flight level 390, the cabin crew reported an electrical smell near doors 1, 2 and 4. The flight crew immediately completed the "Smoke, Fumes, Fire, Electrical" checklist actions and the smell dissipated. Approximately one hour later, a similar smell became evident in the cockpit and the flight crew elected to divert the aircraft to Adelaide as a precaution.

After landing at Adelaide, an engineering inspection of the aircraft was conducted by the operator's engineers. This inspection revealed that the air conditioning right overhead recirculation fan had seized and the left overhead recirculation fan was causing the circuit breaker to trip. Both overhead recirculation fans were isolated electrically in accordance with the requirements of the aircraft's Minimum Equipment List and the aircraft was returned to service.

Factual Information

The Boeing 747-400 aircraft, registered 9M-MPE, was conducting an international scheduled passenger flight from Kuala Lumpur, Malaysia to Melbourne. During cruise at flight level 390, the cabin crew reported an electrical smell near doors 1, 2 and 4. The flight crew immediately completed the "Smoke, Fumes, Fire, Electrical" checklist actions and the smell dissipated. Approximately one hour later, a similar smell became evident in the cockpit and the flight crew elected to divert the aircraft to Adelaide as a precaution.

After landing at Adelaide, an engineering inspection of the aircraft was conducted by the operator's engineers. This inspection revealed that the air conditioning right overhead recirculation fan had seized and the left overhead recirculation fan was causing the circuit breaker to trip. Both overhead recirculation fans were isolated electrically in accordance with the requirements of the aircraft's Minimum Equipment List and the aircraft was returned to service.

General details
Date: 20 April 2004   Investigation status: Completed  
Time: 1727 hours CST    
Location   (show map): Ceduna    
State: South Australia   Occurrence type: Fumes  
Release date: 10 May 2004   Occurrence class: Operational  
Report status: Final   Occurrence category: Incident  
  Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer The Boeing Company  
Aircraft model 747  
Aircraft registration 9M-MPE  
Type of operation Air Transport High Capacity  
Damage to aircraft Nil  
Departure point Kuala Lumpur, MALAYSIA  
Destination Melbourne, VIC  
Last update 13 May 2014