UXB
The answer to that, is that one of the aircraft must have suffered a hang up. Itself not an unusual occurance.
They are not unusual. I was in Malaya at RAF Butterworth, thee Canberra’s had just returned from a sorty and we were bringing them in, I turned mine into the line, stopped him and signal him to stop and open bomb doors with an armourer standing by in case of hang ups. No hang up but a dirty great thousand pounder crunched onto the tarmac. The pilots were wondering why the ground crew were wondering around counting their worry beads and no, it didn’t go off or I would’nt be typing this!!!
Ken