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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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09/12/19

Message Overview:

Fault Message:

RIGHT COWL AI PRESSURE XDCR /WRG

Fault Code:

3616425BMC

Associated CAS:

R COWL A/ICE FAIL
(Caution)

R COWL A/ICE FAULT
(Advisory)

Reporting LRU: Bleed Management Controller (BMC) 2
System Description: 30-21-00
Schematic Diagram: 30-21-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 36-11-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

The Cowl Anti-ice (CAI) Pressure Sensor 2 has been detected out of range by Bleed Management Controller (BMC) 2. Inhibited during Take-off and Landing.

Possible Causes:

  • Cowl Anti-ice (CAI) Pressure Sensor 2
  • Junction Box (JB4)
  • Bleed Management Controller (BMC) 2 (A70)
  • Secondary Power Distribution Assembly (SPDA) 3 (A15)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin:

  • AW700-36-0365 - Bleed management controller - Data Gathering to reduce No Fault Found (NFF) rate

Forum Articles/Infoservice/Newsletter:

  • Forum Article 2011-VOL 8 issue 23 - Bleed Management Controller (BMC) Top 10 No Fault Found (NFF) vs. Reliability Improvement Modification Program (RIMP) implementation
  • Questionnaire for replacing the BMC. Follow instructions using this (Fill out form)

NOTE: Before removing JB4, replace PCB2 Circuit Card if available.

NOTE: Always verify you are working with the current document revision. Access the CIC website to ensure the latest document revision.

CAIV POSITION AND STATUS LOGIC

Quick Links:

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 Secondary-Power Distribution Assemblies AMM 24-62-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Secondary-Power Distribution Assemblies AMM 24-62-01-400-801 [ 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 ]
Opening of the Cowls AMM 71-10-00-010-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Closing of the Cowls AMM 71-10-00-410-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Cowl Anti-ice (CAI) Pressure Sensor EMM 71-11-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Cowl Anti-ice (CAI) Pressure Sensor EMM 71-11-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Swap CAI Pressure sensors (BR710-A2 EMM: 71-11-01-000-801 & 71-11-01-400-801-Subtasks 71-11-01-020-001, step 6 and 71-11-01-420-001, step A.3).

    1. If system checks are good, replace defective CAI Pressure sensor and do close out.
    2. If fault remains, continue with next step.

  2. Swap BMC 2 with BMC 1.

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

  3. Swap SPDA 3 with SPDA 4.

    1. If system checks are good, replace SPDA 3 and do close out.
    2. If fault remains, continue with next step.

  4. Perform wiring checks between CAIPS 2, JB4, SPDA 3, and BMC 2.

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

  5. Replace JB4.
  6. Do close out.

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