G'day Flightleader,
I was just going on my experience with other Boeing aircraft I have flown where the checklist specifically mentions 'engine fuel leak'. I haven't flown the 777 so I don't have specific knowledge of that aircraft.
Does the B777 'fuel leak' check list cover both engine and tank leaks? If so I'd be interested to know what action is recommended for a tank leak.
Regards,
BH.