TCF
You could be right... It was a while ago. ( His, or even my, memory could have slipped a letter !)
We diverted to Lympne, unloaded, had the aircraft checked by GEs and flew a further five trips ( 10 sectors ) with no further problems that day, the weather had improved.
There was no recording of individual flights, CVR etc. then.
I had an early WIREK wire recorder issued to me in the Spring of 1948, but that was heavy and not for an aviation use.