Date:	Monday 7 July 1947
Time:	day
Type:	Avro Anson Mk I
Owner/operator:	2 ANS RAF
Registration:	NK877
MSN:
Fatalities:	Fatalities: 1 / Occupants: 5
Aircraft damage:	Destroyed
Location:	Glenerin, Mount Sawel, Sperrin Mountains, County Londonderry -   United Kingdom
Phase:	En route
Nature:	Military
Departure airport:	RAF Aldergrove, Belfast, Northern Ireland
Destination airport:

Narrative:
Avro Anson Mk.1 NK877, 2 ANS (Air Navigation School), RAF: Written off (destroyed) 7 July 1947. While low flying in a valley in marginal weather conditions, during a cross country NAVEX (navigation exercise) the twin engine aircraft hit tree tops and crashed in a wooded area located on the north eastern side of Glenerin, Mount Sawel, County Londonderry. Four crew members were injured while one was killed.

Crew Fatality:
Sergeant (1891729) Bryn William Jones, RAFVR (Signaller, aged 22) - killed on active service 7-7-47, buried at Woolwich Cemetery, Woolwich, London SE

Other Crew (all injured but survived):
Flight Lieutenant Watterson, RAF (pilot)
Flying Officer Harle
Seargent O' Leary, RAF
AC.2 (Aircraftman 2nd Class) Burgess

The reported crash location of Sawel Mountain is the highest peak in the Sperrin Mountains, and the 8th highest in Northern Ireland, at an elevation of 678 m (2,224 ft) amsl (above mean sea level) and approximate Coordinates 54°49′N, 7°02′W

The crash location was very close to the spot where Stinson Reliant FK914 of the RNAS Eglinton Station Flight crashed on 5 January 1944 with the loss of its three crew.

1. Halley, James (1999). Broken Wings – Post-War Royal Air Force Accidents. Tunbridge Wells: Air-Britain (Historians) Ltd. p.7. ISBN 0-85130-290-4.
2. The Anson File (Ray Strurivant, Air Britain, 1988
3. Final Landings: A Summary of RAF Aircraft and Combat Losses 1946 to 1949 by Colin Cummings p.316-317
4. https://www.baaa-acro.com/crash/crash-avro-652-anson-i-mt-meenard-1-killed
5. https://www.cwgc.org/find-records/find-war-dead/casualty-details/2429998/bryn-william-jones/
6. https://en.wikipedia.org/wiki/Sawel_Mountain

Date/time	Contributor	Updates
27-Sep-2008 01:00	ASN archive	Added
10-Apr-2012 14:30	Dr. John Smith	Updated [Phase, Nature, Source, Damage, Narrative]
27-Jan-2018 21:15	Dr. John Smith	Updated [Location, Departure airport, Source, Narrative]
07-Nov-2019 22:00	Dr. John Smith	Updated [Time, Aircraft type, Operator, Location, Source, Narrative]
12-Nov-2019 22:25	Anon.	Updated [Operator, Operator]
13-May-2023 18:50	Dr. John Smith	Updated [[Operator, Operator]]