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ASN Wikibase Occurrence # 166636
Last updated: 22 October 2020
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Type:Silhouette image of generic MOSQ model; specific model in this crash may look slightly different
de Havilland DH.98 Mosquito B Mk 35
Owner/operator:109 Squadron Royal Air Force (109 Sqn RAF)
Registration: VP199
C/n / msn:
Fatalities:Fatalities: 2 / Occupants: 2
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Location:Mickle Fell, North Yorkshire, England. -   United Kingdom
Phase: En route
Departure airport:RAF Coningsby, Lincolnshire,
Destination airport:RAF Coningsby
Mosquito VP199 went missing 5/1/50 while on a flight routing Coningsby-Cape Wrath-Dalcross-Dundee-Coningsby. It took off at 11:17 hrs with ETR (Estimated Time of Return) of 15:17 hrs. Last radio report from the aircraft was "off northern Scotland" (Presumably Cape Wrath, as per intended route). Written off (destroyed) when flew into a hillside in cloud at Mickle Fell, North Yorkshire on 5/1/1950
Flying Officer (58766) John Frederick NYFFELER (pilot) RAF - killed
Flight Lieutenant (200966) Kenneth John Alan HARRIS (navigator) RAF - killed

According to one source (see link #3) "The aircraft was carrying out trials of 'special equipment' called 'Cosmic Ray', but went missing without trace. Although various possibilities were explored by the RAF Board of Inquiry, the aircraft's loss remains a mystery.

The reported crash location of Mickle Fell is a mountain in the Pennines, the range of hills and moors running down the middle of Northern England. It is 2,585 feet (788 m) high and lies slightly off the main watershed of the Pennines, about ten miles south of Cross Fell at approximate Coordinates: 5436′48″N 218′18″W. 


1. Halley, James (1999) Broken Wings Post-War Royal Air Force Accidents Tunbridge Wells: Air-Britain (Historians) Ltd. p.98 ISBN 0-85130-290-4.
2. Royal Air Force Aircraft SA100-VZ999 (James J Halley, Air Britain, 1983 p 79)
3. Last Take Off; A Catalogue of RAF Aircraft Losses 1950 to 1953 by Colin Cummings p.26
5. Operations Record Book 109 Squadron RAF (Air Ministry Form AM/F.540) for the period 1/1/1949 to 31/12/1951: File AIR 27/2449/2 at

Related books:

Revision history:

30-May-2014 13:34 Nepa Added
16-Sep-2014 20:39 Xindel X Updated [Location]
17-Apr-2015 20:35 Xindel X Updated [Location, Narrative]
25-Jul-2015 05:33 Nepa Updated [Aircraft type]
01-Apr-2016 18:28 Comet123 Updated [Location, Narrative]
07-Mar-2017 18:41 Nepa Updated [Source, Narrative]
03-Sep-2018 18:40 Nepa Updated [Operator, Operator]
25-Sep-2020 19:50 Dr. John Smith Updated [Time, Other fatalities, Location, Source, Narrative]

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