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ASN Wikibase Occurrence # 1064
Last updated: 29 June 2020
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Date:21-JUL-2002
Time:12:25
Type:Silhouette image of generic DH82 model; specific model in this crash may look slightly different
de Havilland DH.82A Tiger Moth
Owner/operator:Private
Registration: G-AKXS
C/n / msn: 83512
Fatalities:Fatalities: 0 / Occupants: 1
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:White Waltham Airfield, near Maidenhead, Berkshire -   United Kingdom
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Demo/Airshow/Display
Departure airport:White Waltham, Berkshire (EGLM)
Destination airport:White Waltham, Berkshire (EGLM)
Investigating agency: AAIB
Narrative:
Substantially damaged 21-07-2002 whilst taking part at an air display at White Waltham Airfield, near Maidenhead, Berkshire. The pilot (the sole person on board) was seriously injured. According to the following excerpt from the official AAIB report into the accident:

"A flying display had been organised by the flying club at White Waltham. The reported meteorological conditions were CAVOK with a surface wind of 320/10-15 kt. One of the early items on the display programme was a formation display by three Tiger Moths and a DH Rapide.

This display was planned to culminate with two Tiger Moths flying at right angles towards the display line before breaking to the left and right respectively to fly parallel to the display line in opposite directions. Video evidence indicated that the display was being flown well in light turbulent conditions.

The two aircraft flew towards the display line at a speed of approximately 70 knots and commenced their 'break'. The aircraft breaking left did so without difficulty. Video evidence showed, however, that the aircraft breaking to the right entered the turn with a high rate of roll, as if a full lateral control input had been applied, although it was not possible to see the position of the ailerons on the video.

What could be seen however, was the application of a substantial amount of right rudder coincident with the start of the turn. As a result the nose of the aircraft dropped after it had turned through approximately 80 and this was countered by the application of nose up elevator.

Substantial right rudder and nose up elevator remained applied causing the aircraft to enter a spin to the right. The rudder was then centralised and the aircraft completed one further turn before striking the ground.

After impact the pilot, who had been occupying the rear cockpit, released his harness but was unable to free his legs which had become trapped by elements of the distorted structure. Two flying instructors arrived promptly on the scene and, having been assured by the pilot that he was "OK", removed him from the wreckage because of the risk of fire. The airfield fire and rescue services then arrived and sprayed foam around the aircraft as fuel was leaking from the ruptured fuel tank.

An Air Ambulance helicopter was on scene within two minutes of the accident and the pilot was later flown to a local hospital. The front cockpit of the aircraft had been completely destroyed in the impact. The pilot, who had worn a full harness with an additional lap strap and a rigid, RAF type, flying helmet received severe back injuries. Inspection revealed that one of his shoulder harness supports had failed at the attachment point to the fuselage as a result of the impact.

Prior to the formation display the pilot had taken the opportunity to fly a Zlin aircraft and had performed a number of aerobatics. The Zlin requires robust control inputs during aerobatics whereas the Tiger Moth, with its weak lateral and directional stability, requires relatively light control forces. It is possible that the pilot had utilised techniques required to fly the Zlin during his first aggressive manoeuvre on the subsequent flight in the Tiger Moth".

Damage sustained to airframe: Per the AAIB report "Aircraft Destroyed" (see link #6 for photos of the accident damage). However, this proved not to be the case, and G-AKXS was sold on to new owners on 12/11/2002 and rebuilt.

Sources:

1. AAIB: https://assets.publishing.service.gov.uk/media/5422ea72e5274a1317000007/dft_avsafety_pdf_507819.pdf
2. CAA: https://siteapps.caa.co.uk/g-info/rk=AKXS
3. http://www.fleetairarmarchive.net/aircraft/Preserved/TigerMoth.html
4. http://www.airhistory.org.uk/dh/p835.html
5. https://www.flickr.com/photos/g-dash_and_more/10075781765
6. Photo of accident: [LINK NOT WORKING ANYMORE:http://rob.com/pix/oops/oops-by/108_0819_IMG] and [LINK NOT WORKING ANYMORE:http://rob.com/pix/oops/oops-by/108_0829_IMG]

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


Images:

Photo of G-AKXS courtesy AirHistory.net


Wroughton (EGDT) (closed)
29 August 1993; (c) Alex Christie

Related books:

Revision history:

Date/timeContributorUpdates
27-Jan-2008 10:10 JINX Added
21-Aug-2008 13:16 JINX Updated
21-Aug-2008 13:17 JINX Updated
20-Apr-2012 12:32 Dr. John Smith Updated [Operator, Departure airport, Destination airport, Source, Embed code, Narrative]
06-Dec-2014 02:55 Dr. John Smith Updated [Operator, Location, Source, Narrative]
22-Jul-2016 16:21 Dr.John Smith Updated [Time, Source, Narrative]

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