BOAC you say:
Out of interest (and not a problem in BA since JAA have accepted that engineering are responsible for these documents and the Captain's responsibilty is thereby removed). . . .
Engineering at LHR dont check the docs on a regular basis... I check the docs on 90% of aircraft during the security checks, and have found 10 cetificates up to 7 months out of date on BA aircraft. Doh!
Fax machines still have their uses