There do seem to have been a number of delays / cancellations recently, there's a thread somewhere about cancellations to the Gulf states over the past few weeks, last week a friend of mine was delayed for 2 days in Johannesburg when the 747 had a series of technical faults.

It does make me wonder if BA is becoming an unreliable airline on the long haul 747 routes as the aircraft age and we wait for new ones to be introduced.