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outside the red RA
regions.
MAINTAIN
VERTICAL SPEED,
MAINTAIN
New RA, initial voice
annunciation.
Present pitch attitude and
vertical speed are outside the
red RA regions.
MAINTAIN
VERTICAL SPEED
CROSSING,
MAINTAIN
New RA, initial voice
annunciation.
Present pitch attitude and
vertical speed are outside the
red RA regions.
Airplane will pass through the
altitude of the traffic.
CLIMB, CLIMB New RA, initial voice
annunciation.
Present pitch attitude and
vertical speed are within the red
RA regions.
Increase pitch attitude and
vertical speed to remain
outside the red RA
regions.
CLIMB, CROSSING
CLIMB,
CLIMB, CROSSING
CLIMB
New RA, initial voice
annunciation.
Present pitch attitude and
vertical speed are within the red
RA regions.
Airplane will climb through the
altitude of the traffic.
787 Flight Crew Operations Manual
Warning Systems -
System Description
15.20.18 Boeing Proprietary
Voice Annunciation Condition Response
DESCEND, DESCEND New RA, initial voice
annunciation.
Present pitch attitude and
vertical speed are within the red
RA regions.
Decrease pitch attitude
and vertical speed to
remain outside the red RA
regions.
DESCEND,
CROSSING DESCEND
DESCEND,
CROSSING DESCEND
New RA, initial voice
annunciation.
Present pitch attitude and
vertical speed are within the red
RA regions.
Airplane will descend through
the altitude of the traffic.
INCREASE CLIMB,
INCREASE CLIMB
Existing RA, TCAS requires
change in vertical rate.
Present pitch attitude and
vertical speed are within the red
RA regions.
Adjust pitch attitude and
vertical speed to remain
outside the red RA
INCREASE DESCENT, regions.
INCREASE DESCENT
ADJUST VERTICAL
SPEED, ADJUST
Existing RA, minimum vertical
speed required to ensure
separation has decreased,
present pitch attitude and
vertical speed are outside the
red RA regions,
or,
new RA, initial voice
annunciation.
Present pitch attitude and
vertical speed are within the red
RA regions.
Continue to keep pitch
attitude and vertical speed
outside the red RA
regions.
Vertical speed may be
decreased,
or,
change pitch attitude and
vertical speed to remain
outside the red RA
regions.
787 Flight Crew Operations Manual
Warning Systems -
System Description
Boeing Proprietary 15.20.19
TCAS Normal Operation
TCAS is controlled from the Alerting and Transponder Control (ATC) panel.
TA/RA is normally selected. However, it is sometimes necessary to select TA
ONLY to prevent nuisance RAs.
TA ONLY is selected during engine out operations to prevent RAs when adequate
thrust is not available to follow the RA commands. Also, TA ONLY can be
selected when intentionally operating near other traffic that may cause RAs, such
as during parallel approaches and VFR operations.
TCAS Non–Normal Operation
The EICAS advisory message TCAS OFF is displayed if TCAS is not operating.
No TCAS RA guidance is displayed on the PFDs, no TCAS traffic symbols are
displayed on the NDs, and no TCAS voice alerts sound. An amber TCAS OFF
message is displayed on both NDs.
The EICAS advisory message TCAS RA (CAPTAIN or F/O) is displayed if TCAS
cannot display RA guidance on the respective PFD. The ND traffic displays and
voice alerts are unaffected.
DESCEND, DESCEND
NOW, DESCEND,
DESCEND NOW
Existing RA, previous TCAS
vertical guidance was to climb.
Present pitch attitude and
vertical speed are within the red
RA regions.
Decrease pitch attitude
and vertical speed to
remain outside the red RA
regions.
CLIMB, CLIMB NOW,
CLIMB, CLIMB NOW
Existing RA, previous TCAS
vertical guidance was to
descend.
Present pitch attitude and
vertical speed are within the red
RA regions.
Increase pitch attitude and
vertical speed to remain
outside the red RA
regions.
CLEAR OF CONFLICT TCAS PFD vertical guidance is
no longer displayed and traffic
changes to a TA symbol.
Separation is increasing and the
RA will not occur.
However, the voice
annunciation will not sound if
TCAS can no longer predict the
track of the RA aircraft.
Attempt to visually locate
the traffic.
Voice Annunciation Condition Response
　
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本文鏈接地址：787機組操作手冊Flight Crew Operations Manual 3(123)