GRUMMAN AMERICAN
FOR TRAINING USE ONLY – SECTION 3
MODEL GA-7/COUGAR
EMERGENCY PROCEDURES
3-35
Issued: April 10, 1978
FUEL MANAGEMENT WITH ONE ENGINE INOPERATIVE
Extended flight with one engine inoperative places an emphasis on fuel management. Fuel management should
be arranged to use fuel from the inoperative engine tank to reduce the out-of-trim condition. If the engine-driven
fuel pump on the operative engine is performing satisfactorily, leave the auxiliary fuel pump turned off until an
approach is being made.
If the auxiliary fuel pumps are needed to maintain fuel flow to the engine, it is essential that both pumps be
operating when switching form one tank to the other. After the switch is made, the pump for the tank not being
used may be turned OFF. The fuel selector valve of the inoperative engine should remain OFF at all times.
To use fuel from the tank on the side opposite the operating engine, turn both auxiliary fuel pumps ON if needed.
Place the fuel selector valve of the operating engine in the X-FEED position. If ON, turn the auxiliary fuel pump on
the operating engine side OFF.
When landing, use fuel from the fullest tank. Turn both auxiliary fuel pumps ON and place the fuel selector valve
of the operating engine to the fullest tank. The auxiliary fuel pump for the tank not being used may be turned OFF.
CRUISING
To use fuel from the tank on the SAME side as the operating engine:
1.
Fuel selector on SAME side as operating engine – ON.
2.
Fuel selector and auxiliary fuel pump on OPPOSITE side from operating engine – OFF.
3.
Auxiliary fuel pump on SAME side as operating engine – OFF (unless needed to maintain normal pressure).
To use fuel from the tank on the OPPOSITE side from the operating engine:
1.
Fuel selector on SAME side as operating engine – X-FEED.
2.
Fuel selector on OPPOSITE side from operating engine – OFF.
3.
Auxiliary fuel pump on SAME side as operating engine – OFF.
4.
Auxiliary fuel pump on OPPOSITE side from operating engine – OFF (unless needed to maintain normal
pressure).
LANDING
1.
Both auxiliary fuel pumps – ON.
2.
Fuel selector operating engine – FULLEST TANK.
3.
Auxiliary fuel pump for the tank not being used may be turned OFF.
