Jon probably - but Form 659 would have been the first piece of official documentation - and completed by Unit.. do you know the form number for a RAF...
All just had access to an Air 81 file and it includes (new to me) a 2 part RAF Form 659 - which is best described as an RAF Airman Death Certificate...
AIR 81/2212 - Pilot Officer R W Rootes, Sergeant S P Connell, Corporal A G Kendrew: killed; Sergeant E J Spencer: injured; aircraft accident, Hampden...
AIR 81/1698 -Flying Officer P C Wheeler, Leading Aircraftman V H Oliver: killed; Blenheim L6601, 604 Squadron; aircraft accident, Epping, 29 November...