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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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Quick Links

03/22/21

Message Overview:

Message Name:

INTERNAL FAULT

Message Code:

B3-006813

Associated CAS:

None

Reporting LRU: GPS 2
System Description: 34-55-00
Schematic Diagram: 34-55-00
Wiring Diagram: 34-55-01

Message Description:

Right GPS is reporting an internal failure, a RF Interface fault or a sensor fault.

Possible Causes:

  • Global Positioning Receiver No. 2 (RH) (A24)
  • Interface Cable
  • Global Positioning Antenna No. 2 (E2)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Removal of the Global Positioning Receiver AMM 34-55-01-000-801
Installation of the Global Positioning Receiver AMM 34-55-01-400-801
Removal of the Global Positioning Antenna AMM 34-55-09-000-801
Installation of the Global Positioning Antenna AMM 34-55-09-400-801
Standard Practices - Replace Wiring SPM 20-12-00-02
Standard Practices - Repair Wiring SPM 20-12-10-02

Troubleshooting Recommendations:

  1. Reset GPS2 circuit breaker CB2-A3. Is the fault message still present?

    1. If NO, do close out.
    2. If YES, continue with next step.

  2. Do wiring check for the following cable between the right Global Positioning Receiver (A24) and the right Global Positioning Antenna (E2):

    From To Result
    Conn. A24CP1 Conn. E2P1

    1. If the check is satisfactory, continue with next step.
    2. If the check is not satisfactory, repair or replace the defective cable.

  3. Swap the right Global Positioning Receiver (A24) with the left Global Positioning Receiver (A25). Is the fault message still present?

    1. If NO, replace the defective Global Positioning Receiver.
    2. If YES, continue with next step.

  4. Replace the right Global Positioning Antenna (E2).
  5. Do close out.

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