MD-11 Flight Crew Operations Manual
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Air -
Description and Operation
Air.10.11
• Monitors airfoil anti-ice - The ESC detects failures of the anti-ice
manifolds and shuts off air to the associated main manifold. An alert is
sent to the flight crew.
• Airfoil anti-ice valves can only be operated by the flight crew. When a
triple manifold failure is detected, however, the airfoil anti-ice valves
associated with that manifold automatically close. With the valves closed,
a valid manifold decay check is enabled.
• Monitors pneumatic systems for engine/APU fire - Shuts down the
associated pneumatic system when an ENG or APU FIRE handle is pulled
and the ESC is in auto mode.
• When the fire is associated with the APU pneumatic system, the ESC also
closes the APU load control valve.
• Monitors environmental system failures and reconfigures - Reconfigures
the affected environmental system for a failed component.
• Monitors inoperative components and compensates - Components that
may be inoperative by the Minimum Equipment List (MEL) can be
entered into the system via the CFDS. The ESC then configures the
system to operate with these components inoperative.
• Monitors itself and other components for proper operation - Continually
monitors a large number of system components. The ESC uses alternate
means to accomplish the task of a failed component, when able.
• Detects and reports faults - This is done through the CFDS.
• Reverts to manual for certain failure modes - Failures within the
controller itself, or of a number of essential air system components,
results in reversion to manual mode. The SEL AIR SYS MAN alert is
displayed.
EIS Test Display
All AIR synoptic data digits are crossed with amber X’s when all of the following
conditions are met:
• The aircraft is on the ground and operational.
• The ANNUN LT TEST button on the overhead panel is pushed.
• The AIR synoptic is selected on the SD.
October 02, 2006
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