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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 BLEED AIR DUCTS RUPTURE

Fault Code:

3616417BMC

Associated CAS:

XBLEED FAIL
(Caution)

BLEED MISCONFIG
(Advisory)

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

Fault Description:

The Bleed Management Controller (BMC) 2 senses that the opposite bleed pressure is higher by 10 Pound per Square Inch (gage) (PSIG) when the Cross-Bleed Valve is fully open and the Left Bleed-Pressure Regulating-and-Shutoff Valve is closed. Inhibited during Take-off and Landing.

Possible Causes:

  • Bleed Management Controller (BMC) 2 (A70)
  • Right Bleed Pressure Transducer (BPT) (MT112)
  • Right Bleed Air Duct
  • Junction Box (JB4)/PCB2
  • 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.

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 Junction Box JB4 Circuit-Cards AMM 24-00-06-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Junction Box JB4 Circuit-Cards AMM 24-00-06-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Leak Test of the Bleed Air System AMM 36-11-00-790-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Bleed Pressure Transducer AMM 36-11-25-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Bleed Pressure Transducer AMM 36-11-25-400-801 [ 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 ]
Removal of the Bleed Air Ducts AMM 36-11-45-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Bleed Air Ducts AMM 36-11-45-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Inspect RIGHT bleed ducts for duct integrity and signs of rupture.

    1. If faults are found, adjust the couplings, remove and reinstall or replace the faulty components as required.
    2. If there are no faults, continue with next step.

  2. Perform the leak test of bleed air system.

    1. If system checks are good, then go to step 6.
    2. If fault remains, continue with next step.

  3. Swap Right Bleed pressure transducer (BPT) with Left Bleed pressure transducer (BPT) and inspect BPT sense line.

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

  4. Swap Bleed Management Computer (BMC) 2 with Bleed Management Computer (BMC) 1.

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

  5. Perform wiring checks between BPT to JB4/PCB2.

    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.

  6. Perform wiring checks between BPT to 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.

  7. Perform continuity check of JB4/PCB2.

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

  8. Replace JB4/PCB2.
  9. Do close out.

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