.... "slight mid air collision with 43-38986...." sheared rudder off! (presumably meaning only the movable part, not the entire fin).
2nd aircraft in that production block. The 80-BO(eing) batch introduced the Cheyenne tail turret with improved visibility, abetter gunsight and a bicycle style seat to avoid the gunner having to kneel whilst operating the turret, making it more comfortable - and reducing length by 5 inches.
[Until looking that up, I hadn't realised the tail gunner had to kneel to operate his guns, thought he was seated.
https://www.sas1946.com/main/index.php?topic=21120.0 ]
Having seen the reply that "he's seen all the above but wants crew photos, does he know the rest of the crews Names? Often "anonymous" crews might have the Captains Name, and then it may be down to tracing family of those crewmen, in case they have a photo of "their" plane. If 381st haven't a photo, perhaps the USAAF archives might, even though they may not have it filed under Tail Number, but perhaps a crew Name... If he's seen everything "out there" he needs to go to the main repository of photos and records, the USAAF.