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Data tag contains distance, altitude, and vertical motion arrow.
Displayed when TCAS or weather radar selected; replace range scale tics.
Displayed when TCAS selected and range selected is less than 80 miles.
TCAS Alert Message TRAFFIC
Displayed:
• in all ND modes and ranges
• whether TCAS traffic is displayed or not
1 Traffic Targets
2 TCAS Mode Annunciations
3 OFFSCALE Message
4 TCAS No Bearing Messages
5 TCAS/Weather Radar Range Arcs
6 TCAS Three Mile Ring
787 Flight Crew Operations Manual
Warning Systems -
Controls and Indicators
Boeing Proprietary 15.10.11
Displayed: (red) – RA is occurring.
Displayed: (amber) – TA is occurring, and RA is not occurring.
TCAS PFD Vertical Guidance
Displayed: (red) – RA is occurring.
1 TRAFFIC Alert Message
1 RA Pitch Region To Avoid (red outlined)
10
T/D
GRH
FRED
+02
+03 TRAFFIC
NAVIGATION DISPLAY
1
10
10
6
2
1
1
2
6
10
10
PRIMARY FLIGHT DISPLAY
1
1
2
3
2
787 Flight Crew Operations Manual
Warning Systems -
Controls and Indicators
15.10.12 Boeing Proprietary
Displayed: (amber) – TA is occurring, and RA is not occurring.
Note: For a single RA, only one red outlined RA pitch region, either above or
below, is displayed at a time. For two or more RAs, two red outlined RA
pitch regions may be displayed.
To ensure vertical separation, the center of the airplane symbol must be outside the
red outlined RA pitch regions to avoid.
To ensure vertical separation, vertical speed must be outside the red RA vertical
speed region to avoid.
Red – present vertical speed does not ensure RA traffic is avoided.
White – present vertical speed ensures RA traffic is avoided.
TCAS HUD Vertical Guidance
2 RA Vertical Speed Region to Avoid (red)
3 Vertical Speed Pointer
SYMBOL NAME REMARKS
Down preventive Area(s) inside the lines indicate the pitch
region(s) to avoid in order to resolve the
traffic conflict.
The flight path symbol should be positioned
outside the pitch command area(s) to ensure
traffic avoidance.
A double-lined box indicates a corrective
action is required, and represents TCAS
maneuver guidance to maintain or increase
separation from the traffic.
Up preventive
Up and down
preventive
Descend corrective
Climb corrective
Combined corrective
787 Flight Crew Operations Manual
Warning Systems -
Controls and Indicators
Boeing Proprietary 15.10.13
Ground Proximity Warning System (GPWS) Controls
Tuning and Control Panel
Push – toggles the ground proximity warning system between the left (L) and right
(R) systems.
Defaults to the left system.
If a fault is detected the system will automatically switch to the other side.
Selection is displayed in large green font.
Push – toggles between normal and override settings.
OVRD –
• inhibits TOO LOW FLAPS alert
• EICAS advisory message GPWS FLAP OVRD is displayed.
NORM – all flap inhibits removed.
Selection is displayed in large green font.
Push – toggles between normal and override settings.
OVRD –
• inhibits TOO LOW GEAR alert
• EICAS advisory message GPWS GEAR OVRD is displayed.
NORM – all gear inhibits removed.
1 Ground Proximity System (GND PROX SYS)
2 Ground Proximity Flap Override (FLAP OVRD)
3 Ground Proximity Gear Override (GEAR OVRD)
TUNING AND CONTROL PANEL
2
3
4
1
PRELIMINARY
787 Flight Crew Operations Manual
Warning Systems -
Controls and Indicators
15.10.14 Boeing Proprietary
Selection is displayed in large green font.
Push – toggles between normal and override settings.
OVRD –
• inhibits look-ahead terrain alerts and display
• EICAS advisory message GPWS TERR OVRD is displayed.
NORM – all terrain inhibits removed.
Selection is displayed in large green font.
Alerting and Transponder Control Panel
The BELOW G/S light illuminates when the GPWS senses excessive deviation
below the ILS or GLS glideslope or the FMC generated flight path angle.
Push (amber BELOW G/S light illuminated) –
• inhibits GLIDESLOPE alert when pushed below 1,500 feet radio altitude
• extinguishes the BELOW G/S light.
The inhibit function resets when –
• on the ground
• after a touch and go landing
• after a go-around
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787机组操作手册Flight Crew Operations Manual 3(114)
