WHI Z6834 gik tabt over Nordsøen den 29. januar 1943.

Flyvehistorisk Tidsskrift skriver:
"Ved middagstid lettede flyet fra Acklington på en navigations / træningsflyvning over Nordsøen. Kl. 14.05 meddelte piloten, Sgt D.V. Corrigan, over radioen,
at han vendte tilbage til Acklington på grund af motorvanskeligheder. Umiddelbart efter meddelte han kort, at de var nødsaget til at nødlande på havet.

Liget af andenpiloten, W/O J. A. Cook, drev i land ved Lønstrup (omkring her), og han blev begravet på Frederikshavns kirkegård den 21. april 1943.
Der er ikke fundet spor af flyet eller de øvrige 5 besætningsmedlemmer." (FT 89-70-26)

Sergeant Leslie William Simkiss, 20 år, var søn af William Bentley Simkiss og Violet Mary Simkiss, Bewdley, Worcestershire, United Kingdom.
Hans navn er på Panel 164 på the Runnymede Memorial blandt mere end 20.000 navne på flyvere, der ikke har en kendt grav. (Kilde: CWGC)  6 flyvere

WHI Z6834 was lost over the North Sea on 29 January 1943.

(Danish) Aviation Historical Review writes:

"The plane took off from Acklington to the North Sea at noon on a flight to gain Operational Flight Experience. At 14.05 hours Pilot, Sgt D. V. Corrigan stated
over the radio that he was returning to Acklington due to engine trouble. Immediately afterwards he announced briefly that they were forced to ditch in the sea.

The body of Co-Pilot, Wt/O J. A. Cook drifted ashore near Lønstrup (about here). He was buried in Frederikshavn on 21 April 1943.
No trace of the plane or the 5 other crew members has ever been found." (FT 89-70-26) 

Sergeant Leslie William Simkiss, 20, was the son of William Bentley Simkiss and Violet Mary Simkiss, of Bewdley, Worcestershire, United Kingdom.
He is commemorated on the Runnymede Memorial, Panel 164, among more than 20,000 airmen who have no known grave. (Source: CWGC)

999 Squadron? Here RAF 3 OTU Coastal Command (Operational Training Unit)!  6 airmen.