• All Flags In View: Notes:

  All flags in-view indicates a power loss. The power loss can be caused by a power failure to the indicator or the internal power supply in the HSI.

  
  ALL FLAGS IN VIEW

  1.Check for power at cannon plug on back of HSI (Connector D43-Capt , D45-FO's Pin40, 26VAC).
  
  2.If power is available at the cannon plug then replace the indicator.
  
  3.If power is not available at the cannon plug then trouble shoot power source.
  
  ADI INFORMATION:

  

  
  Circuit Breakers:

  F/O XFMR (ALT): P18-2 = B4.

  Capt cmps xfmr (ALT): P6-1 = B12.

  Instrument Transformer 2: P6-1 = A12.

  Instrument Transformer 1: P18-2 = A1.

  
  
  Notes:

  The Captains HSI receives power from the 115v AC STBY Bus. If this bus is not powered you will get all flags in-view on the Captains ADI and HSI, and the F/O RDDMI. If this happens check standby power switch on the P5 panel. Lift the cap and ensure that the switch is fully in the "Auto" position. This switch has a tendency to hang up between Off and Auto when the cap is closed.

  
  Applicable deferrals None.

Training Only