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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

06/12/19

Message Overview:

Fault Message:

ACSC2 [CH B NO DATA] /BMC2 /WRG

Fault Code:

2164328ECS

Associated CAS:

R PACK AUTO FAIL
(Caution)

R PACK FAULT
(Advisory)

Reporting LRU: Air Conditioning System Controller (ACSC) 2
System Description: 21-60-00
Schematic Diagram: 36-11-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 36-11-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

Air-Conditioning System Controller (ACSC) 2 Receive Channel B does not receive data from Bleed Management Controller (BMC) 2.

Possible Causes:

  • Air-Conditioning System Controller (ACSC) 2 (A88)
  • Bleed Management Controller (BMC) 2 (A70)
  • Junction Box (JB4)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin:

  • AW700-21-0160 - "PACK FAULT" CAS message while CAIMS / OMS is active (Global Express / XRS - 9002 to 9312, 9314 to 9380, 9384 to 9429 and Global 5000 - 9127 to 9383, 9389 to 9400, 9404 to 9431 and 9998)

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Removal of the Air-Conditioning System Controllers AMM 21-60-21-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Air-Conditioning System Controllers AMM 21-60-21-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Junction Box JB4 AMM 24-00-05-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Junction Box JB4 AMM 24-00-05-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Bleed Management Controller AMM 36-11-33-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Bleed Management Controller AMM 36-11-33-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Swap ACSC 2 with ACSC 1.

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

  2. Swap BMC 2 with BMC 1.

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

  3. Perform a wiring check between ACSC 2 and BMC 2.

    1. If the wiring checks are not good, repair the defective associated wiring and do close out.
    2. If the wiring checks are good, continue with next step.

  4. Perform a continuity check of JB4.

    1. If there is continuity, repair the defective associated wiring as required and do close out.
    2. If there is no continuity, continue with next step.

  5. Replace JB4.
  6. Do close out.

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