B737CL使用的发动机型号为：

THE COMPONENT(S) WHICH TRIGGER(S) A WARNING AND "FAULT" SIGNALS ON THE HYDRAULIC CONTROL PANEL IS (ARE):

THE POWER TRANSFER UNIT (PTU) ALLOWS:

THE POWER TRANSFER UNIT (PTU) IS AUTOMATICALLY TESTED:

THE A/C IS ON THE GROUND, ELECTRICAL POWER IS AVAILABLE. THE POWER TRANSFER UNIT (PTU) P/B IS SET TO THE "AUTO" POSITION AND THE YELLOW SYSTEM ELECTRIC PUMP P/B IS SELECTED "ON":

THE BLUE HYDRAULIC SYSTEM IS NORMALLY PRESSURIZED BY:

THE ENGINE DRIVEN PUMPS (EDPs) NORMALLY PRESSURIZE:

ELECTRICALLY CONTROLLED FIRE SHUT-OFF VALVES ARE USED BY:

WASTE WATER DRAIN MAST HEATING MAY BE TESTED:

THE WING ANTI-ICE VALVE INDICATION IS DISPLAYED:

FAILURE OF A DRAIN MAST HEATER OR CONTROL UNIT IS INDICATED: