Date:	Monday 14 April 1947
Time:
Type:	de Havilland DH.98 Mosquito FB Mk VI
Owner/operator:	CSE RAF
Registration:	PZ410
MSN:
Fatalities:	Fatalities: 0 / Occupants: 2
Aircraft damage:	Destroyed
Location:	RAF stn Watton, East Dereham, Norfolk, England -   United Kingdom
Phase:	Landing
Nature:	Military
Departure airport:	RAF Watton, Norfolk
Destination airport:	RAF Watton

Narrative:
Mosquito PZ410: (Central Signals Establishment) Took off for training flight. 14/04/1947
Due to a hydraulic leak in the undercarriage mechanism, the port undercarriage leg would not lock into the "down" position, undercarriage leg jammed in the partially lowered position, and aircraft belly landed beside the runway at RAF Watton.
Crew: ???? OK

The subsequent Board of Inquiry discovered that the undercarriage retraction tests, which were undertaken as part of the monthly servicing routines, had not been undertaken. As a result, the squadron engineering officer and his senior NCO were 'reproved' (reprimanded) for their failure in procedures.

1. http://www.airhistory.org.uk/dh/_DH98%20prodn%20list.txtt
2. Air-Britain Royal Air Force Aircraft PA100-RZ999
3. ORB CSE RAF: AIR29/1911:
4. https://discovery.nationalarchives.gov.uk/details/r/C4101621
5. Broken Wings – Post-War Royal Air Force Accidents. Tunbridge Wells:
6. Final Landings: A Summary of RAF Aircraft and Combat Losses 1946 to 1949
7. https://en.wikipedia.org/wiki/RAF_Signals_Command#History
8. https://en.wikipedia.org/wiki/RAF_Watton#Postwar_RAF_use

Date/time	Contributor	Updates
02-May-2014 08:23	Nepa	Added
30-Jul-2014 19:11	Giggs	Updated [Location, Narrative]
31-Jul-2015 19:35	Nepa	Updated [Aircraft type, Location, Narrative]
19-Sep-2019 19:08	Nepa	Updated [Total fatalities, Other fatalities, Narrative, Operator]
25-Nov-2019 22:59	Dr. John Smith	Updated [Time, Source, Narrative]
14-Jul-2021 08:37	Coufal	Updated [Time, Aircraft type, Source, Narrative, Operator]
20-Aug-2021 21:22	Anon.	Updated [Narrative, Operator]
19-Nov-2021 17:47	Nepa	Updated [Source, Narrative, Operator]
28-Aug-2022 22:19	Nepa	Updated [Departure airport, Source, Narrative, Operator]
18-May-2023 16:18	Dr. John Smith	Updated [[Departure airport, Source, Narrative, Operator]]
18-May-2023 17:15	Nepa	Updated [[[Departure airport, Source, Narrative, Operator]]]