Amongst all the bluster a consensus of what actually happened appears to be emerging.
Following/during AAR a large fuel migration occurred, leading to a serious fire in the bomb bay. This fire/heating may have damaged fuel seals/tank 7 leading to a fire/ fuel tank explosion in the wing root area.
Undisputed on this thread are continuing concerns about the safety of AAR, the lack of fire protection in the bomb bay and in the fuel tanks.
CAS, Torpy, is content with the safety of Nimrod. How so? Is it because he doesn't fly in it?
I have it on very good authority that fire extinguishant could be provided in MRA4 and that fire/explosion protection could easily be provided in the fuel tanks.
It isn't, because the likes of CAS and AOC 2Gp and the Defence Ministers have put a price on the cost of a life. Bloody disgraceful.