MD-11 Flight Crew Operations Manual
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Instrumentation and Navigation -
Description and Operation
Inst.10.12
Traffic Advisories (TA) are amber circles on the ND representing airplanes that
are 40 seconds from the CPA. There is no requirement to change or monitor
vertical speed but visual acquisition of the threat airplane is required. The voice
warning associated with TAs is TRAFFIC, TRAFFIC. All TCAS voice warnings
are inhibited below 500 feet AGL (+/-100 feet), and during windshear guidance
or GPWS warning.
Proximate traffic are cyan diamonds on the ND that represent airplanes that are
not threat traffic but are within 6 NM and 1200 feet vertically.
Other traffic are outline cyan diamonds on the ND representing non threat traffic
that are outside the range of TA, RA, or proximate traffic.
Off scale RAs and TAs are shown by one half of the symbol at the edge of the
display area. Data tags and vertical trend arrows are shown.
A two-mile range ring with an asterisk (*) at each of the twelve clock positions
will appear when TCAS mode is selected on the ECP and the range goes to 10
NM.
CHANGE 7 ANNUNCIATION
Traffic, Traffic
Climb, Climb
Descend, Descend
Climb, Crossing Climb. Climb, Crossing Climb
Descend, Crossing Descend. Descend, Crossing Descend
Adjust Vertical Speed, Adjust
Adjust Vertical Speed, Adjust
Climb, Climb Now. Climb, Climb Now
Descend, Descend Now. Descend, Descend Now
Increase Climb, Increase Climb
Increase Descent, Increase Descent
Monitor Vertical Speed, Monitor Vertical Speed
Maintain Vertical Speed, Maintain
Maintain Vertical Speed, Crossing Maintain
Adjust Vertical Speed, Adjust
Monitor Vertical Speed
Clear of Conflict
November 16, 2009
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