Originally Posted by
B747eng
I renewed my UK CAA Flight Engineers license just over a year ago. I might be using it again to fly a non UK registered aircraft under a validation based on my UK license.
Things must have changed since 2010.
IIRC the CAA did not adopt EASA FCL4 which was the F/E licensing bit, as there were no F/E aircraft on the UK register. Those of us flying on a validation for other European countries had to get a new license.