MD-11 Flight Crew Operations Manual
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Warning and Alerting -
Description and Operation
Warn.10.25
REMARKS - none.
Radio Altitude Call-outs
AURAL - 2,500, 1,000, 500, 400, 300, 200, 100 voice* and 50-40-30-20-10
voice*.
• Logic - voice annunciation when a/c descends thru respective altitude.
• Inhibit - none.
VISUAL - radio altimeter window displayed on PFD.
• Logic - radio height of 2,500’ and below.
• Inhibit - none.
REMARKS - 2,500, 1,000, 500, 400, 300, 200, and 100 voices are individually
selectable. 50-40-30-20-10 voice is standard with option to delete it.
Cockpit Timer
AURAL - tone.
• Logic - countdown timer expired.
• Inhibit - none.
VISUAL - white clock face on PFD.
• Logic - cockpit timer activated.
• Inhibit - none.
REMARKS - none.
Ground Proximity Mode 1
AURAL - SINKRATE voice (outer boundary) or PULL UP voice (inner
boundary).
• Logic - excessive descent rate (inner or outer boundary).
• Inhibit - windshear condition or DITCH switch enabled.
VISUAL - GROUND PROX flashing red on PFD.
• Logic - excessive closure rate to terrain (logic from GPWS).
• Inhibit - windshear condition or DITCH switch enabled.
REMARKS - none.
Ground Proximity Mode 2
AURAL - SINKRATE voice (outer boundary) or PULL UP voice (inner
boundary)
• Logic - excessive closure rate to terrain.
• Inhibit - windshear condition or DITCH switch enabled.
VISUAL - GROUND PROX flashing red on PFD.
November 10, 2008
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