frogy,
In strong agreement with capot...
If you cant walk or drive all that way to look for yourself, make you way to your local yellow pages and look up "KLM UK Engineering" - and make a call on monday.
There are 5 to 7 other aircraft maintenance companies on the airport too. Why don't you go and see for yourself? On a Sunday possibly, to get your bearings and get some more telephone numbers.
Southall College... I went there in 1988!!!
Remember Tony Wooldridge? One of the head lecturers?
He started a company called "Licence By Post" it may still be about....Google is your friend.