Aha! That makes a lot more sense. Once I think of them as numerics, they are obviously 5 SPC and 1 BPD. Many thanks. His general area of assignment was NWAAF or North West African Air Forces.

He spent less than a year in North Africa/Sicily and then spent about three years back in the home counties at a variety of locations centred on Biggin Hill before eventually returning to civilian life in 1947.