• MAP RANGE & MAP/WXR DISAGREE Message: Notes:
  • The Amber MAP RANGE DISAGREE message shows when a new range has been selected on the EFIS control panel and new map data is not received from the FMC. All map data is blanked in this condition. The display will default to the 40 mile range, and the aircraft symbol, track line, heading select bug, compass rose, GS, TAS, wind direction and speed from the ADIRU will be shown.
    
    
  • Indicates selected range on the EFIS control panel does not match the WXR R/T and/or FMC range.
    
    MAP / WXR RANGE DISAGREE Possible Causes:

    Before replacing any component perform DEU Bite (Maint/CDS/DEU#1 or #2/ Current status)~or~(Maint/FMCS/INFLT Faults)~or~(WXR R/T bite check in FWD E&E.).-Toggle FMC & control panel switch.

    
    

    1.EFIS Control Panel

    
    

    2.Flight Management Computer (FMC)
    
    

    3.Weather Radar Transceiver
    
    

    4.DEU
    
    

    5.Wiring
    
    MAP / WXR RANGE DISAGREE Message:

    

    
    

    

    
    

    

    
    Circuit Breakers:

    FMCS CMPTR #1: P18-2 = E8 & A6.

    FMCS CMPTR #2: P6-1 = D16.

    
    

    Weather Radar R/T: P6-1 = D13.

    
    

    EFIS Control Panel CAPT's: P18-2 = D1.

    EFIS Control Panel F/O's: P6-1 = E13.

    
    

    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 34-36 Flight Management Computer System
    MEL 34-15 Weather Radar
    
    

Training Only