Fuel Jettison

Question 1

Fuel Jettison:
What happens when the fuel fuel Jettison procedure has been accomplished?

Answer 1

When the QRH procedures have been accomplished:
All fuel pumps turn on.
The crossfeed valve opens.
The jettison valves open.

Fuel transfer begins from:
- Trim tank to Center tank.
- Outer tanks to Inner tanks.

Fuel is jettisoned from both the Inner tanks and Center tank simultaneously.

Question 2

Fuel Jettison:
What is the fuel Jettison rate?

Answer 2

2200lbs/min + Fuel burn

Question 3

Fuel Jettison:
When does fuel Jettison stop?

Answer 3

• The crew stops the jettison using the QRH procedure.
• The fuel level input into the MCDU FUEL PRED page has been reached.
• The combined Inner tank fuel quantity reaches 22,000lbs.
• Both Inner tank low level sensors on one side go dry.