TT,
the lack of AT for your call out is a bit of a surprise as all the Herc sqns had a crew on BCSB (Bomber Command Standby) later called QRA. We knew the code names as 'Mickey Finn' and 'Clip Key'. According to my log book I did a lot of NI 'Banner' tasks that month so your AT may well have been diverted to support one of the regular 'surges' to that location.