Accident Percival P.56 Provost T1 G-AWVF, Wednesday 8 July 2009
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Date:Wednesday 8 July 2009
Type:Percival P.56 Provost T1
Registration: G-AWVF
MSN: PAC/F/375
Year of manufacture:1955
Engine model:Alvis Leonides 503/6A radial
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Destroyed
Location:1.3 nm E of Bishop Norton, Lincolnshire -   United Kingdom
Phase: En route
Departure airport:RAF Waddington, Lincolnshire (EGXW)
Destination airport:RAF Linton-on-Ouse, North Yorkshire (EGXU)
Investigating agency: AAIB
Confidence Rating: Accident investigation report completed and information captured
While cruising at 2,500 ft the aircraft suffered a mechanical engine failure which led to an in-flight fire. The pilot was probably rendered unconscious by the smoke and fumes from the fire; the aircraft crashed into a field and the pilot was fatally injured. The engine failure was initiated by a fatigue crack of the No 6 piston gudgeon pin. The cause of the fatigue crack initiation could not be determined but it is likely that a high-load event, such as a partial or full hydraulic lock, initiated the crack in the pin. The presence of corrosion pits on the inner surface of the pin was probably a contributory factor and the aircraft’s low utilisation rate during the previous 45 years probably contributed to the formation of corrosion. In addition to the initial CAA safety actions, three AAIB Safety Recommendations are made.

(G-AWVF was ex-RAF Provost T.1 XF877, delivered on 30-09-1955; Last service with the CATCS (Central Air Traffic Control School) at RAF Shawbury in 1967 - see picture below. Struck off charge and sold for civilian use in 1968, being first UK civil registered as G-AWVF on 28-11-1968).

Accident investigation:
Investigating agency: AAIB
Report number: EW/C2009/07/02
Status: Investigation completed
Download report: Final report


1. AAIB:
2. CAA:


Percival P.56 Provost T. XF877 coded 'T' of the Central Air Traffic Control School, RAF Shawbury, 3 September 1967: Percival P.56 Provost T1 XF877 Valley 030967 edited-4

Revision history:

09-Jul-2009 02:26 number78 Added
09-Jul-2009 20:55 slowkid Updated
10-Jul-2009 03:25 CC649 Updated
21-Apr-2012 13:39 Dr. John Smith Updated [Location, Departure airport, Destination airport, Source, Embed code, Narrative]
14-Dec-2014 20:15 Dr. John Smith Updated [Operator, Departure airport, Destination airport, Source, Narrative]
07-Nov-2016 23:11 Dr.John Smith Updated [Time, Source, Embed code]
07-Nov-2016 23:11 Dr.John Smith Updated [Embed code]
08-Nov-2016 22:35 Dr.John Smith Updated [Location, Destination airport, Source, Narrative]
08-Nov-2016 22:52 Dr.John Smith Updated [Location, Narrative]
20-Mar-2018 22:55 Aerossurance Updated [Location, Source, Narrative]

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