Great reactions from LHR and the two guys in the front. As for the rest of the people on here ranting about the locking mechanisms on A320 series fan cowls, the system isn't off a 747 or a 757.. Somebody is propably in a devestated mood with worry at the moment because he forgot to do a simple operation, for reasons we are all unaware of and a MEDA investigation will get to the cause with honest answers..