In Tony Blackman's amplification note, mentioned in Pittsextra's posting, he states that,
"Significantly, just over a year after the XV230 accident on 5th November 2007 and before the Review was finalised, Nimrod XV235 made an emergency landing due to fuel in the bomb bay after flight refuelling but the Review looked for a leak and didn’t appreciate that the fuel almost certainly had come from the same place as XV230, namely the No 1 tank blow-off valve;"
This is incorrect. The fuel was observed by the crew of XV235, with the aid of the under floor periscope, coming from a coupling in the refuelling line, in the forward bomb bay. It was spraying, "like a garden hose, with your finger over the end" on to the bomb bay heating mixing chamber. The hot air inlet temp of the mixing chamber was above the auto ignition temp, and the mixing chamber is in line with leading edge of the fire, according to a drawing produced by the Harrier pilot immediately after he landed on 2nd Sept 2006.
DV