ASN Wikibase Occurrence # 68647
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| Date: | Friday 20 February 2009 |
| Time: | 15:29 |
| Type: |  de Havilland Canada DHC-1 Chipmunk 22A |
| Owner/operator: | Private |
| Registration: | G-BWUV |
| MSN: | C1/0655 |
| Year of manufacture: | 1952 |
| Engine model: | De Havilland Gipsy Major 10 MK2 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Wombleton Airfield, Chapel Lane, Harome, North Yorkshire -
 United Kingdom
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | Wombleton Airfield, North Yorkshire |
| Investigating agency: | AAIB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The aircraft had taken off from Runway 29 at Wombleton Airfield and reached a height of 300 feet when the engine suddenly lost all power. The pilot selected full flap and attempted a forced landing straight ahead but the aircraft struck a hedge and wire fence. The wire fence caught in the right undercarriage leg, yawing the aircraft to the right and bringing it rapidly to a halt. The aircraft was severely damaged but the pilot suffered only minor injury and exited normally.
It was found that, upon rotating the engine, the left magneto contact breaker did not open at all and the right magneto was set to open too far. This meant that the left magneto would have been incapable of producing a spark and the right only a weak and mistimed spark. Since the pilot reports that prior to the accident the aircraft had flown for 15 minutes with no problems, it would appear that the left magneto setting slipped some time after his pre-takeoff checks, leaving operation on the deficient right magneto. This may have caused fouled plugs, which further reduced the engine power output.
G-BWUV was substantially damaged, and was sold on to a new owner in Aylesbury, Buckinghamshire, on 30.10.2009.
(G-BWUV was ex-RAF Chipmunk T.10 WK640, and still flies marked as such. Brief history: Awaiting Collection 30-05-1952, delivered to the RAF 03-06-1952. RAF Service with 17 RFS, 11 RFS, St Andrew UAS, 1 FTS, St. Andrews UAS (again), Queens UAS, RAF College, 7 AEF, East Midlands UAS, FSS, EFTS, and 3 AEF. Withdrawn from service and stored at RAF Newton from 11-02-1996. Struck off charge when sold 30-05-1996. First civil registered as G-BWUV 18-07-1996)
Accident investigation:
 |
|
Sources:
1. AAIB: https://assets.publishing.service.gov.uk/media/5423048940f0b61342000b83/DHC-1_Chipmunk_22A__G-BWUV_10-09.pdf
2. CAA: https://siteapps.caa.co.uk/g-info/
3. http://www.yorkshire-aircraft.co.uk/aircraft/planes/ryedale/wk640.html
4. http://www.airport-data.com/aircraft/photo/000406904.html
5. http://www.airfighters.com/photo/143456/L/Private-Private/De-Havilland-Canada-DHC-1-Chipmunk-T10/G-BWUV/
6. http://www.ukserials.com/results.php?serial=WK
7. http://www.gazetteherald.co.uk/news/4152707.Aircraft_crashes_in_field/
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 08-Oct-2009 11:41 | harro | Added |
| 07-Nov-2011 09:54 | Dr. John Smith | Updated [Operator, Location, Departure airport, Source, Narrative] |
| 14-Sep-2012 17:41 | Dr. John Smith | Updated [Departure airport, Source, Embed code, Narrative] |
| 09-Aug-2014 16:12 | TB | Updated [Operator, Location, Departure airport, Source, Embed code, Narrative] |
| 23-Dec-2014 21:21 | Dr. John Smith | Updated [Operator, Location, Source, Damage, Narrative] |
| 02-Nov-2016 19:07 | Dr.John Smith | Updated [Source, Narrative] |
| 02-Nov-2016 19:12 | Dr.John Smith | Updated [Narrative] |
Corrections or additions? ... Edit this accident description
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