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| Date: | Tuesday 4 October 1966 |
| Time: | night |
| Type: | Westland Wasp HAS.1 |
| Owner/operator: | 829 NAS FAA RN |
| Registration: | XT425 |
| MSN: | F9595 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Other fatalities: | 0 |
| Aircraft damage: | Destroyed |
| Location: | 10 ½ miles off Portland Bill, Dorset, England -
United Kingdom
|
| Phase: | En route |
| Nature: | Military |
| Departure airport: | RNAS Portland, Dorset |
| Destination airport: | |
Narrative:Whilst simulating emergencies at night on 4/10/1966 XT425 hit the sea 10 ½ miles off Portland Bill, Dorset, cartwheeled and sank. The two crew were slightly injured.
Wreckage recovered and to the Accident Investigation Unit at RNAS Lee-on-Solent. XT425 ended its days on the fire dump at Predannack, Cornwall in 1974 (see photo below)
Sources:
1.
http://www.ukserials.com/losses-1966.htm 2.
http://web.archive.org/web/20130321095657/http://daveg4otu.tripod.com:80/dorset/dorcrash.html 3.
https://www.helis.com/database/cn/211/ 4.
http://www.westlandscout.com/Pages/waspPage2.aspx Media:
Wreckage of Wasp XT425 dumped at Predannack, Cornwall in 1974

Revision history:
| Date/time | Contributor | Updates |
| 19-Jun-2013 07:40 |
Dr. John Smith |
Added |
| 29-Jan-2014 20:19 |
Nepa |
Updated [Operator, ] |
| 30-Aug-2020 20:19 |
MIG21 |
Updated [Operator, Location, Operator, ] |