• COMPUTER (CMPTR) Flag: Notes:

  The CMPTR flag will be in-view when the Flight Director function of the FCC is invalid or the Flight Director circuitry in the indicator has failed.

  
  

  To trouble shoot this flag, run DFCS BITE for the channel that has failed. For the Captains ADI run BITE for A channel FCC. For the First Officers ADI run BITE for B channel FCC. Run Inflight Faults to verify the write-up and determine whether the FCC is at fault or the indicator. You can further isolate the problem by running DFCS - LRU Interface and selecting the ADI for test.

  
  

  On the Captains ADI only, the CMPTR flag will come into view when the static inverter powers the AC Standby Bus.

  
  
  ADI INFORMATION:

  

  
  Circuit Breakers:

  AFCS SYS A FCC (DC): P18-1 = E3.

  AFCS SYS B FCC (DC): P6-2 = C2.

  AFCS SYS A SENSOR (AC): P18-1 = E1.

  AFCS SYS B SENSOR (AC): P6-2 = C1.

  AFCS SYS A INTERLOCK: P18-1 = E4.

  AFCS SYS B INTERLOCK: P6-2 = C3.

  AFCS MCP: P18-1 = D1.

  ADI #1: P18-2 = B1.

  ADI #1 ALTN: P6-1 = C8.

  ADI #2: P6-1 = B8.

  ADI #2 ALTN: P18-2 = B2.

  
  
  Applicable deferrals 34-12-01=Flight director System.

Training Only