A long time ago when I was on 99 Sqn (Britannias) we were tasked to support an army exercise moving troops to Luqa, Malta, about four Britannias were used for the move ISTR
Three Brits made it to Luqa sucessfully, but the third captained by 99's c/o of the day landed for some unknown reason at the nearby RN airfield at Hal Far.
It was only when the c/o asked after landing for taxi directions (on the Luqa ATC frequency), that Luqa asked for his whereabouts on the airfield as they couldn't see him!
I can't recall we ever got a satisfactory explanation of the errror.