What are the approximate fuel capacities?
Wings 17,000kg each
Centre 67,000kg
When does the expanded fuel (in each tank) display show?
On the ground with engines shut down, or during fuel related non normals.
What does an amber fuel flow line mean?
Suction feed. This is sufficient up to FL350
Fuel balance inhibits?
In the air : Fuel jettison. A centre fuel pump is operating
Ground: Refuel, de fuel, transfer. APU off. An engine running.