ABNORMAL PROCEDURES
FUEL LEAK
A fuel leak may be detected if:
The sum of FOB and FU is significantly less than FOB at engine start, or is decreasing, or
A passenger observes fuel spray from engine/pylon or wing tip, or
The total fuel quantity decreases at an abnormal rate, or
A fuel impalance develops, or
Fuel quantity of a tank decreases too fast (leak from engine/pylon, or hole in a tank), or
A tank is overflowing (due to pipe rupture in a tank), or
Fuel flow is excessive (leak from engine), or
Fuel is smelt in the cabin.
If visibility permits, leak source may be identified by a visual check from the cabin.
WHEN A LEAK IS CONFIRMED
LAND ASAP
LEAK FROM ENGINE/PYLON CONFIRMED:
Engine fuel leak can be confirmed by excessive fuel flow indication, or a visual check.
-THR LEVER (of effected engine): IDLE
-ENG MASTER (of effected engine): OFF
-FUEL X FEED: USE AS RQRD
if the leak stops the crossfeed valve can now be opened to re-balance fuel quantity, or to enable use of fuel from both wings. Do not restart the engine.