MD-11 Flight Crew Operations Manual
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Warning and Alerting -
Description and Operation
Warn.10.3
• An amber reminder message will appear on the EAD when a level 1 alert
has been reset.
• MASTER CAUTION lights are resettable by pushing either the
MASTER CAUTION light or the associated cue switch on the SDCP.
Some level 1 alerts are maintenance alerts that appear on the SD status page only
and will not illuminate an SDCP cue switch or the MASTER CAUTION lights.
Level 0 Alerts - Cyan
Level 0 (cyan) alerts are generally operational or aircraft systems status
information. Level 0 alerts are characterized as follows:
• A cyan alert on the EAD.
• Alert will be positioned above the space for reminder messages at the
bottom right of the EAD.
Consequences
When some level 3, 2, or 1 alerts are displayed, statements called
CONSEQUENCES appear (aligned with the associated alert) in the lower third of
the associated SD synoptic. The SD consequences are the effects of the failure
and/or the required crew action. If the affected system is operating in automatic
mode, the crew could safely complete the flight by referring only to the SD
consequences. For maximum system recovery, however, required checklist
procedures should be integrated with the SD consequences.
Reminder Messages
When level 2 or 1 alerts have been reset by pushing the associated cue switch on
the SDCP, the alert is removed from the alert list on the EAD and a reminder
message consisting of the associated system name (FUEL, HYD, etc.) is shown in
a dedicated location within the two bottom lines of the right column on the EAD.
These reminder messages are amber and boxed for level 2 alerts and amber and
unboxed for level 1 alerts. In some cases the EAD reminder message will flash
(serving as a pseudo MASTER CAUTION light).
Inhibits
Takeoff Inhibits - Level 3 alerts and associated MASTER WARNING lights are
inhibited from V1 to 400' RA, but no longer than 25 seconds in-air. Level 2 or 1
alerts and associated MASTER CAUTION lights are inhibited at throttle advance
or 80 knots or V1 -20 knots. The takeoff inhibits are released at 400' RA (or in-air
for 25 seconds), or 1000' barometric altitude above the departure airport (or in-air
for 120 seconds). Level 0 alerts are not inhibited.
Takeoff inhibit exceptions are as follows:
• The level 3 ENGINE FIRE alerts are not inhibited during takeoff, but the
associated MASTER WARNING lights are inhibited at V1.
October 02, 2006
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