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ASN Wikibase Occurrence # 188371
Last updated: 29 November 2021
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Type:Silhouette image of generic DH8D model; specific model in this crash may look slightly different
de Havilland Canada DHC-8-402Q Dash 8
Registration: G-FLBB
MSN: 4255
Fatalities:Fatalities: 0 / Occupants: 78
Other fatalities:0
Aircraft damage: None
Category:Serious incident
Location:near point OLAPO -   Ireland
Phase: En route
Nature:Passenger - Scheduled
Departure airport:Ireland West Airport (EIKN)
Destination airport:Manchester Airport (MAN/EGCC)
Investigating agency: AAIU
The aircraft had departed Ireland West Airport (EIKN) and was climbing through 17,000 ft when the flight crew were alerted by a strange odour/fumes on the flight deck followed by activation of the forward toilet smoke alarm. With smoke becoming visible in both the cabin and flight deck, the Flight Crew donned their oxygen masks. The flight diverted to Dublin Airport (EIDW) where it landed at 17:41 hrs, without further incident. There were no injuries.
Subsequent trouble-shooting by maintenance personnel revealed the presence of oil in the Handling Bleed-Off Valve (HBOV) caused by failure of carbon seals due to distress and rupture of the No. 4 Bearing Key washer in the No. 1 engine. Contamination of the secondary oil system due to the damaged seals caused fumes to enter the cabin and flight deck.


Accident investigation:
Investigating agency: AAIU
Status: Investigation completed
Download report: Final report
Other occurrences involving this aircraft

8 Dec 2016 G-FLBB Flybe 0 overhead Dudley, West Midlands, 12nm West of Birmingham non


Photo of G-FLBB courtesy

Newquay - Cornwall (EGHQ / NQY)
17 April 2019; (c) Stephen Rendle

Revision history:

25-Jun-2016 12:07 harro Added

Corrections or additions? ... Edit this accident description