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Old 18th Feb 2008, 16:31
  #11 (permalink)  
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Join Date: Aug 2005
Location: DXB
Posts: 31
Yes it is secondary. The reason the report brought it up is because of the fuel that leaked during the evacuation.

The evacuation checklist aims to shut off things that could lead to fire or other dangers. BA's evacuation checklist has the captain switching off the fuel valves whilst the F/O does the engine fire handles which meant that if the F/O did his bit before the captain then the electric relay controlling the fuel valve would be isolated and the valve didn't close. So the report has issued a sensible recommendation that operators make sure their checklists do things in the right order. It also mentions that Boeing were already in process of changing all 777s so that the fire handles close the fuel valves as well as all the other disconnections so you wouldn't need to do switch the fuel valves separately.

Most other aircraft already have the fire handles/buttons doing all the isolation in one fell swoop already.

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