• Flight Path Vector (FPV) Fail Flag: Notes:

  The amber FPV flag shows and the flight path vector symbol is removed. The FPV flag and symbol will only show when the FPV mode is selected on the EFIS control panel.

  
  
  FPV Flag Possible Causes:

  Before replacing any component perform BITE if available. (ADIRU-Current Status or Inflight Faults)

  
  

  1.ADIRU

  
  

  2.DEU

  
  

  3.Wiring from the ADIRU to the DEUs

  
  
  Flight Path Vector Fail Flag:

  

  
  

  

  
  Circuit Breakers:

  ADIRU Left (AC): P18-1 = E7.

  ADIRU Left (DC): P18-1 = E5.

  ADIRU Left EXC: P18-2 = E8.

  ADIRU Right (AC): P6-1 = C14.

  ADIRU Right (DC): P6-1 = C17.

  ADIRU Right EXC: P6-1 = C15.

  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 None
  

Training Only