787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Flight Instruments, Displays -
Controls and Indicators
Copyright © The Boeing Company. See title page for details.
D615Z003-TBC 10.10.25
PFD Messages
AOA SPD – a backup airspeed based on AOA and inertial data.
Displayed when:
• the ADRS is not providing trusted CAS or
• the on-side AIR DATA/ATT selector has been placed in the ALTN position
ISFD SPD – a backup airspeed based on single source data from the center pitot
air data module and the center static air data module.
Displayed if all FCE data is lost and neither the ADRS airspeed or AOA SPD is
available.
GPS ALT – a backup altitude based on data from GPS L or GPS R.
Displayed when:
• the ADRS is not providing trusted altitude or
• the on-side AIR DATA/ATT selector has been placed in the ALTN position
ISFD ALT– a backup altitude based on single source data from the center static air
data module.
Displayed if all FCE data is lost and neither the ADRS altitude or GPS ALT is
available.
1
AOA SPD / ISFD SPD
2
GPS ALT / ISFD ALT
PRIMARY FLIGHT DISPLAY
280
260
600
800
L STD
.820
10 10
20 20
03
03
6
1
2
AOA SPD
ISFD SPD
OR
GPS ALT
ISFD ALT
OR
2
1
February 15, 2010
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