EdSet,
I agree that there is no certainty that a comprehensive maintenance review following the XV227 incident would have prevented the fire on XV230. In my early post I did not say that this would be the case, although I concede that I believed it was likely.
I would be very interest to find out how often, both prior to and following September 2006, there has been fuel or traces of fuel found in the No 7 tank dry bay. I find it hard to believe, as John Blakeley has stated, that this is the first time that fuel has entered this bay, or another bay that is close to a hot air pipe on the aircraft. As you know, even before 2003, AAR had been conducted on an occasional basis in a fairly wide range of temperatures.