Further to the original scenario.
Were I in a situation with the CTR tanks empty (I am feeding right engine from right main tank), and still losing from the right main tank, I would then be unable to immediately diagnose a leaking tank, or an engine leak. Therefore I would follow the checklist's advice and shutdown the right engine. If the leak stopped, I would remain single-engined and crossfeed fuel as required to balance and use all remaining fuel.
If the leak continued, and the fuel remaining were enough to warrant salvaging it, I would give consideration to restarting the engine (it musn't be the cause of the leak, if with the engine secured, leak continues, correct?) and continuing diversion with two engines. I might, as above, open X-FEED and feed both engines from the leaking tank.
Again, attempting a restart under the above conditions is not considered in the NNC. But I would have to give it consideration as an option...
For those with no access to the NNC, the checklist commences by X-FEED closed, CTR TANK PUMPS off. This is done to identify 'which engine' is the source of the leak. Again, we are assuming an engine leak, and not a tank leak.
Last edited by jonny dangerous; 7th February 2006 at 21:47.