AVIONICS COMPARTMENT 
  • check security of electronics
  • check for loose articles adrift
  • check for "remove before flight" tag on bottle
  • latch and secure compartment door
AVIONICS BAY GOUGE
  •  Emergency canopy open bottle - (orange bottle in the top, back part of the compartment) - filled with nitrogen
    • check for slack in emergency canopy open cable and that cable is attached to the actuating rod 
    • any maintenance pins connected to the actuating rod clevis should have a “remove before flight” flag attached - ensure this is removed prior to flight
  • Junction box - mounted on forward side of compartment. Note the air conditioning service and sight glass guage behind box
  • RMI adapter - black box bottom row left side
  • Slaving accessory - bottom row, 2nd box  - receives inputs from the flux detector (left wingtip) and the directional gyro (round black unit behind the RMI adapter ) and sends an accurate, gyro-stabilized magnetic heading signal to both RMI compass cards
  • Flux detector- 28 VDC electromagnetic compass - sends magnetic heading signal to slaving accessory. 
  • Directional gyro - 115 VAC, provides stabilization of magnetic heading signal
  • DME-40 - bottom row, 3rd box - provides TACAN distance to station to both NACWS CDU’s
  • BRG-40 - bottom row, 4th box - provides bearing information to the TACAN
  • ARC-159 - top row, left - UHF transceiver
  • VIR-30 - top row, right - receives and interprets VOR and localizer signals
  • NACWS TRC - mounted to overhead.  NACWS transmitter/receiver computer, provides all the information displayed on both cockpit display units (CDUs)
  • Avionics cooling fan - lower forward portion of compartment
  • GPS equiped planes will have the GPS unit mounted to the ceiling of th compartment