DH8D, en route, west-northwest of Dublin Ireland, 2015

DH8D, en route, west-northwest of Dublin Ireland, 2015

Summary

On 31 July 2015 a Bombardier DHC8-400 crew detected the presence of abnormal fumes on the flight deck and were then advised by the cabin crew that the forward toilet smoke alarm had been activated and that smoke was visible in the cabin. Smoke then appeared in the flight deck and a PAN was declared. A diversion to Dublin was subsequently made. The Investigation found that debris from a fractured bearing washer had compromised engine oil seals leading to fumes/smoke entering the aircraft through the air conditioning system. The manufacturer has since introduced a new  infinite life bearing washer.

Description

On 31 July 2015 a Bombardier DHC8-400 (G-FLBB) on a scheduled international passenger flight from Ireland West/Knock to Manchester, UK and climbing through FL170 in day VMC experienced smoke and fumes in both the passenger cabin and the flight deck. A 'PAN' was declared to ATC, a descent to FL100 accomplished and oxygen masks were donned by both pilots. The smoke and fumes situation persisted but stabilised and a diversion to Dublin was made. After engine shutdown, the smoke/fumes began to clear and it was not possible to identify the source of the fumes/smoke. No ill effects were reported to have been suffered by any of the 78 occupants.

Investigation

The event was investigated by the Irish Air Accident Investigation Unit (AAIU). The 63 year-old Aircraft Commander was recorded as having 7,264 hours total flying experience which included 2,354 hours on type.

The full content of this page is available to registered users only.
Please Log in or Register

SKYbrary Partners:

Safety knowledge contributed by: