- MAP/TERR RANGE DISAGREE Message:
Notes:
- The amber MAP/TERR RANGE DISAGREE message shows when the range data to the DEU disagree between the GPWC, the on-side EFIS control panel, and the FMC. This can only happen when the DEU expects terrain data from the GPWC (when the EFIS Control Panel TERR button is pressed).
MAP/TERR RANGE DISAGREE Message Possible Cause:Before replacing any component perform BITE if available. (Push the test switch once for level 1 test, twice for current faults.) Perform a FMCS bite or CDS Bite.
1.Ground Proximity Warning Computer
2.Flight Management Computer (FMC)
3.EFIS Control Panel
4.DEU
5.Wiring
MAP/TERR RANGE DISAGREE Message:
Circuit Breakers:GND PROX Warn: P18-1 = B7.
FMCS CMPTR #1: P18-2 = E8 & A6.
FMCS CMPTR #2: P6-1 = D16.
FMCS MCDU-1: P18-2 = A7.
FMCS MCDU-2: P6-1 = D15.
Nav Control Panel #1: P18-1 = A3.
Nav Control Panel #2: P6-1 = A15.
Nav Sensor DC-1: P18-1 = B1.
Nav Sensor DC-2: P6-1 = A10.
DEU#1 HOLD UP: P6-1 = D10.
DEU#1 PRIMARY: P18-2 = D5.
DEU#2 HOLD UP: P6-1 = D9.
DEU#2 PRIMARY: P6-1 = D11.
Applicable deferrals MEL 34-26-09 Terrain Display functions
MEL 34-36 Flight Management Computer System