If the fuel boost pumps were still running , the fuel control switches were still in the run positions and also if the engine fire switches were not pulled, pressurised fuel in the fuel manifold and lines can leak through when these were punctured or severed in the crash. If the passenger evacuation drills were accomplished with power still available, the spar valves would close but fuel could still leak from the manifold prior to the spar valves.
Last edited by taufupok; 26th February 2008 at 00:09.