737 Flight Crew Operations Manual
Flight Instruments, Displays -
PFD/ND – Displays
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D6-27370-866-EGP 10.11.27
5 No V Speeds Flag (amber)
Displayed when the aircraft is on the ground and both V1 (decision speed) and VR
(rotation speed) are not valid or are set to less than 80 knots.
6 Speed Flag (amber)
Speed indication is inoperative.
7 Pitch/Roll Comparator Annunciation (amber)
PITCH displayed when Captain’s and F/O’s pitch angle displays differ by more
than 5 degrees.
ROLL displayed when Captain’s and F/O’s roll angle displays differ by more than
5 degrees.
The flags flash for 10 seconds then remain steady.
8 Localizer Flag (amber)
An ILS frequency is tuned and localizer course indication has failed.
9 Heading Flag (amber)
Heading information failed. Heading cannot be displayed.
10 Radio Altitude Flag (amber)
Radio altitude indication has failed.
11 Flight Director Flag (amber)
The flight director has failed.
12 Glideslope Flag (amber)
An ILS frequency is tuned and glideslope indication has failed.
13 Altitude Flag (amber)
The altitude display has failed.
14 Vertical Speed Flag (amber)
Vertical speed has failed.
15 Attitude Flag (amber)
The attitude display has failed.
16 Landing Altitude Flag (amber)
The landing altitude input is not available or invalid.
September 15, 2016
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