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(WARNING)
RED MESSAGE (CAUTION)
AMBER MESSAGE (ADVISORY)
CYAN MESSAGE (STATUS)
WHITE MESSAGE Require immediate crew attention. These messages are accompanied by flashing master warning, triple chime attenson with or without voice message or dedicated tone. Require immediate crew awareness and future crew action may be required in the form of alternate system selection or performance limitation. These message are accompanied by flashing master caution and a single chime. Indicate safe or normal system operation which require crew awareness, over and above the dark cockpit philosophy. Indicate minor failures or reduction in systems capability, which require no crew action.

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02/03/21

Message Overview:

Message Name:

INSTALLED

Message Code:

B3-006717

Associated CAS:

None

Reporting LRU: FGC 1
System Description: 22-11-00
Schematic Diagram: 22-11-00
Wiring Diagram: 31-45-01
31-45-09

Message Description:

No left FGC installed in the aircraft.

Possible Causes:

  • Left IAPS Power Supply Card 1 (PWR-3000) (A4-PWR)
  • Flight Guidance Computer 1 (FGC) (A4-FGC)
  • Input/Output Concentrator 1 (IOC) (A4-IOC)
  • IAPS Card Cage (A4)

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

NOTE: If this is the only MDC fault and there is no other cockpit indications or messages, the priority of possible LRU failure will be FGC, and IAPS CARD CAGE.

Quick Links:

Removal of Flight Guidance Computer (FGC) AMM 22-11-01-000-801
Installation of Flight Guidance Computer (FGC) AMM 22-11-01-400-801
Removal of Integrated Avionics Processor System (IAPS) Card Cage AMM 31-45-01-000-801
Installation of Integrated Avionics Processor System (IAPS) Card Cage AMM 31-45-01-400-801
Removal of Input/Output Concentrator (IOC) AMM 31-45-05-000-801
Installation of Input/Output Concentrator (IOC) AMM 31-45-05-400-801
Removal of Integrated Avionics Processor System (IAPS) Power Supply (PWR) AMM 31-45-09-000-801
Installation of Integrated Avionics Processor System (IAPS) Power Supply (PWR) AMM 31-45-09-400-801

Troubleshooting Recommendations:

  1. Verify L ESS BUS is powered and CB1-B6 is in.
  2. Clear fault messages related to Configuration Strapping Unit (CSU)1 or (CSU)2.
  3. Swap PWR supplies.

    1. If system checks are good, do close out.
    2. If fault remains, continue with next step.

  4. Swap FGC cards.

    1. If system checks are good, do close out.
    2. If fault remains, continue with next step.

  5. Replace IAPS card cage.
  6. Do close out.

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