Date:	05-JAN-1950
Time:
Type:	de Havilland DH.98 Mosquito B.Mk 35
Owner/operator:	109 Squadron Royal Air Force (109 Sqn RAF)
Registration:	VP199
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
Nature:	Military
Departure airport:	RAF Coningsby, Lincolnshire
Destination airport:	RAF Coningsby

Narrative:
Mosquito VP199 went missing 05-JAN-1950 while on a flight routing Coningsby-Cape Wrath-Dalcross-Dundee-Coningsby. T/o 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 05/01/1950
Crew:
F/O (58766) John Frederick NYFFELER (pilot) RAF - killed
F/Lt (200966) Kenneth John Alan HARRIS (nav.) 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: 54°36′48″N 2°18′18″W. 

1. http://www.airhistory.org.uk/dh/_DH98%20prodn%20list.txt
2. ORB 109 Sqdn RAF
3. Last Take Off; A Catalogue of RAF Aircraft Losses 1950 to 1953 by Colin Cummings.
4. Royal Air Force Aircraft SA100-VZ999 (James J Halley, Air Britain, 1983.
5. https://discovery.nationalarchives.gov.uk/details/r/D8421165
6. https://en.wikipedia.org/wiki/Mickle_Fell

Date/time	Contributor	Updates
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]
07-Jan-2021 18:06	Nepa	Updated [Aircraft type, Source, Narrative, Operator]
22-Jun-2021 20:11	TB	Updated [Time, Departure airport, Source, Narrative, Operator]
02-Aug-2021 20:06	Iwosch	Updated [Narrative, Operator]