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EGPWS LINE MAINTENANCE MANUAL
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 39 of 68
3.8.4 GND LANDING FLAP DISCRETE OR FLAP OVERRIDE
Type: Supplied by Flap or Flap selector handle switch. This input can be paralleled with, or used
exclusively by a Flap Override Switch if an alternate source of Flap Position is used.
Signal Status: Landing Flaps or Not Landing Flaps
Fault monitoring: Indication of landing flaps selected for more than 60 seconds at airspeeds above 250 knots will
result in a flap switch fault which will cause a GPWS INOP indication.
Note: This can be caused either by a flap switch fault or by the Flap Override switch being left in the on position.
Level 6 Audio readout
GND Landing Flaps Discrete
or Flap Override
Selected =>
Not Selected =>
“Flaps Selected”
“Flaps Not Selected”
Note: If Flap Reversal Program Pin is enabled for MK VII EGPWC, the Audio readout will be:
Level 6 Audio readout
GND Landing Flaps Discrete
or Flap Override
Selected =>
Not Selected =>
“Flaps Selected”
“Flaps Not Selected”
3.8.5 +28V LANDING FLAP OR FLAP OVERRIDE DISCRETE
Type: Supplied by Flap or Flap selector handle switch. This input can be paralleled with, or used
exclusively by a Flap Override Switch if an alternate source of Flap Position is used.
Signal Status: Landing Flaps or Not Landing Flaps
Fault monitoring: Indication of landing flaps selected for more than 60 seconds at airspeeds above 250 knots will
result in a flap switch fault which will cause a GPWS INOP indication.
Note: This can be caused either by a flap switch fault or by the Flap Override switch being left in the on position.
Level 6 Audio readout
+28 V Landing Flaps Discrete
or Flap Override
Selected =>
Not Selected =>
“28V Flaps Selected”
“28V Flaps Not Selected”
Note: If Flap Reversal Program Pin is enabled for MK VII EGPWC, the Audio readout will be:
Level 6 Audio readout
GND Landing Flaps Discrete
or Flap Override
Selected =>
Not Selected =>
“Flaps Selected”
“Flaps Not Selected”