ASN Wikibase Occurrence # 68647
Last updated: 23 May 2013
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| Date: | 20-FEB-2009 |
| Time: | 15:29 |
| Type: |  de Havilland Canada DHC-1 Chipmunk 22A |
| Operator: | Private |
| Registration: | G-BWUV |
| C/n / msn: | C1/0655 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Other fatalities: | 0 |
| Airplane damage: | Written off (damaged beyond repair) |
| Location: | Wombleton Airfield, Harome, Pickering, North Yorkshire -
 United Kingdom
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | Wombleton Airfield (N54°14.02 W00°58.13), North Yorkshire |
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.
Sources:
http://www.aaib.gov.uk/sites/aaib/publications/bulletins/october_2009/dhc_1_chipmunk_22a__g_bwuv.cfm
http://www.caa.co.uk/application.aspx?catid=60&pagetype=65&appid=1&mode=reg&fullregmark=BWUV
http://www.myaviation.net/search/search.php?view=źnr=G-BWUV
http://ukga.com/airfield/wombleton
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] |
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