737 Flight Crew Operations Manual
Flight Instruments, Displays -
PFD/ND – Displays
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D6-27370-866-EGP 10.11.55
3 TCAS Failure Flag (expanded and center MAP, expanded VOR,
expanded APP, PLAN modes)
TCAS has failed.
4 ADF 1 and ADF 2 or VOR 1 and VOR 2 Failure Flag (expanded and
center MAP, expanded APP, expanded VOR modes)
ADF or VOR has failed.
5 DME 1 and DME 2 Failure Flag (expanded and center MAP, expanded
APP, expanded VOR modes)
Selected VOR DME has failed.
6 VOR 1, 2 Failure Flag (expanded VOR mode)
VOR has failed.
7 Reference VOR DME (expanded VOR mode) and Reference ILS DME
(expanded APP mode)
Reference VOR or ILS DME has failed.
8 MAP Failure Flag (expanded and center MAP, PLAN modes)
The related FMC generated map display has failed.
9 Vertical Track Failure Flag (expanded and center MAP modes)
FMC vertical track data is invalid.
10 ILS Glideslope Failure Flag (expanded APP mode)
ILS glideslope has failed.
11 ILS Localizer Failure Flag (expanded APP mode)
ILS localizer course indication has failed.
September 15, 2016
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