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ASN Wikibase Occurrence # 191650
Last updated: 4 October 2019
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Type:Silhouette image of generic DH8A model; specific model in this crash may look slightly different
de Havilland Canada DHC-8-102A Dash 8
Owner/operator:Olympic Air
Registration: SX-BIO
C/n / msn: 330
Fatalities:Fatalities: 0 / Occupants: 2
Other fatalities:0
Aircraft damage: Substantial
Location:Bristol International Airport -   United Kingdom
Phase: En route
Departure airport:East Midlands
Destination airport:Exeter Airport
Investigating agency: AAIB
After a base maintenance check at Exeter the aircraft was flown uneventfully to East Midlands to be repainted. During the return flight to Exeter the right engine suffered a significant oil leak and lost oil pressure, so the flight crew shut it down. Subsequently, the crew noticed the left engine also leaking oil, with a fluctuating oil pressure, so they initiated a diversion to Bristol, where they landed safely. The oil leaks were traced to damaged O-ring seals within the oil cooler fittings on both engines. Both oil coolers had been removed and refitted during the base maintenance check at Exeter. It was probably during re-installation that the O-ring seals were damaged. A number of factors led to this damage and to missed oil leak checks.


Safety recommendations:

Safety recommendation 2011-014 issued by AAIB to Flybe
Safety recommendation 2011-015 issued by AAIB to Bombardier
Safety recommendation 2011-016 issued by AAIB to Flybe
Safety recommendation 2011-017 issued by AAIB to Flybe
Safety recommendation 2011-018 issued by AAIB to EASA
Safety recommendation 2011-019 issued by AAIB to CAA


Photo of SX-BIO courtesy

Kefallinia - Argostolion (LGKF / EFL)
16 July 2010; (c) Richard Vandervord

Revision history:

24-Nov-2016 19:32 harro Added

Corrections or additions? ... Edit this accident description