nigegilb; As I understand the report, auto ignition came about because of the lack of insulation at the V-coupling (aft of the elbow). So temp reduction due to insulation problems did not come into it in the end.
One would have thought that when this section of piping was replaced, as it was after XV227 incident, the instruction should have been given for the insulation blanket to cover the exposed clamp.
Perhaps someone involved in the replacement programme can comment on this
DV
Last edited by Distant Voice; 16th Dec 2007 at 20:21.