If an engine-driven boost pump fails, pressure can be maintained by placing the respective
STANDBY PUMP switch to ON.
The engine-driven primary (HIGH PRESSURE) fuel pump is limited to 10 hours of opera-
tion,throughout its TBO period, without standby fuel pump or engine-driven boost pump fuel
The system will suction lift fuel only to its respective engine-driven boost pump, i.e., LEFT or
RIGHT. Fuel will not gravity feed through the crossfeed system.