Hello everyone

A bit of a long shot, but can anyone tell me the individual code letter for 61 Squadron Hampden X2989, which crash landed on return from a raid on Leuna after being attacked by an Me-110 on the night of October 16th/17th 1940?

I've checked the ORB Forms 540 and 541 with no joy, but I just wondered if someone may have a note of it from another source.

Many thanks,