• 8 - ELECTRICAL / 8M - MESSAGE SYSTEMS / COMPASS/MINI-TRIP COMPUTER / STANDARD PROCEDURE /
  MANUAL COMPASS CALIBRATION
  
• 8 - ELECTRICAL / 8M - MESSAGE SYSTEMS / COMPASS/MINI-TRIP COMPUTER / STANDARD PROCEDURE /
  COMPASS DEMAGNETIZING
  
• 8 - ELECTRICAL / 8M - MESSAGE SYSTEMS / COMPASS/MINI-TRIP COMPUTER / STANDARD PROCEDURE /
  COMPASS VARIANCE ADJUSTMENT