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ASN Wikibase Occurrence # 243883
Last updated: 25 November 2021
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Time:19:50 UTC
Type:Silhouette image of generic DH8D model; specific model in this crash may look slightly different
De Havilland DHC-8-402
Registration: G-FLBE
MSN: 4261
Fatalities:Fatalities: 0 / Occupants: 63
Other fatalities:0
Aircraft damage: Minor
Category:Serious incident
Location:Over Cornwall, en route Newquay to London Heathrow -   United Kingdom
Phase: En route
Nature:Passenger - Scheduled
Departure airport:Newquay-Cornwall Airport (NQY/EGHQ)
Destination airport:London-Heathrow Airport (LHR/EGLL)
Investigating agency: AAIB
Shortly after take off from Newquay Airport, Cornwall, in a strong crosswind, the pilots noticed that both handwheels were offset to the right in order to maintain 'wings level' flight. The aircraft diverted to Exeter Airport where it made an uneventful landing. The aircraft had a crew of four (pilot, co-pilot, and two cabin crew) plus 59 passengers.

The handwheel offset was the result of a break in a left aileron cable that ran along the wing rear spar. In the course of this investigation it was discovered that the right aileron on G-FLBE, and other aircraft in the operatorís fleet, would occasionally not respond to the movement of the handwheels. Non-reversible filters were also fitted to the operatorís aircraft that meant that it was not always possible to reconstruct the actual positions of the control wheel, column or rudder pedals recorded by the Flight Data Recorder.

The aircraft manufacturer initiated safety actions to improve the maintenance of control cables and to determine the extent of the unresponsive ailerons across the fleet.

Three Safety Recommendations are made in this report for the unresponsive aileron and filtering of the control position data.

Safety actions taken by the manufacturer:
● The aircraft manufacturer reviewed the periodic cable inspection procedure and advised that they would amend the procedure to increase the likelihood of identifying cable damage. They also stated that they would issue an All Operators Message to highlight this serious incident and the changes to the inspection procedure.
● The aircraft manufacturer advised that it would provide literature to operators to monitor for unresponsive ailerons using their Flight Data Monitoring Programme.


1. AAIB Final Report:
2. AAIB Annual Safety Review 2020 pp.116-117:

Accident investigation:
Investigating agency: AAIB
Status: Investigation completed
Download report: Final report


DHC-8-402 G-FLBE of Flybe at Manchester International Ringway Airport (MAN/EGCC) on 14-4-2017:Manchester Airport (EGCC) (33509513520)


Photo of G-FLBE courtesy

Edinburgh (EGPH / EDI)
10 February 2019; (c) David Unsworth

Revision history:

15-Oct-2020 21:36 Dr. John Smith Added
15-Oct-2020 21:38 Dr. John Smith Updated [Location, Departure airport, Embed code]
15-Oct-2020 21:41 Dr. John Smith Updated [Location]
15-Oct-2020 22:37 Dr. John Smith Updated [Source]
18-Oct-2020 16:22 harro Updated [Location, Source, Accident report]
22-Oct-2020 08:56 Aerossurance Updated [Location, Source, Narrative, Accident report]
22-Oct-2020 17:38 Dr. John Smith Updated [Location, Source]
26-Jun-2021 22:44 Dr. John Smith Updated [Source, Narrative]

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