12 Wellingtons from 426 and 427 Squadrons were ordered on a mining operation to the Frisian Islands. The crews were over the garden at between 500 and 800 feet, sowing 24@1500 lb mines.

Sgt O. Adlam RAF and crew from 427 Squadron, flying Wellington III  BJ-778 coded ZL-D, crashed at Chopgate, 10 miles NNW of Helmsley on return.

P/O B. Dunn, RAF
Sgt A. Clifford, RAF
Sgt W. Jelley, RAF
Sgt W. Ball, RAF