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(WARNING)
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AMBER MESSAGE (ADVISORY)
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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:

[BMC2] LEFT A/I SUPPLY DUCTS LEAK

Fault Code:

3616519BMC

Associated CAS:

WING A/ICE LEAK
(Caution)

Reporting LRU: Bleed Management Controller (BMC) 2
System Description: 36-12-00
Schematic Diagram: 36-12-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 36-12-03 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

A leak has been detected by Bleed Management Controller (BMC) 2 LEFT A-I SUPPLY DUCTS Loops and have been simultaneously detected by Bleed Management Controller (BMC) 1 LEFT A-I SUPPLY DUCTS Loops. Inhibited during Take-Off and Landing.

Possible Causes:

  • Left Anti-Icing Supply Duct
  • Bleed Management Controller (BMC) 2 (A70)

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

Refer to AIPC 36-12-01 for Left Bleed Leak Detection Loops.

Quick Links:

Leak Test of the Bleed Air System AMM 36-11-00-790-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Bleed Leak-Detection-Loops and Components Maintenance Practices AMM 36-12-00-910-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Left Bleed Leak Detection Loop AIPC 36-12-01[ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Make sure the Leak Detection Elements are installed as per Bleed Air Leak Detection System - Maintenance Practices.

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

  2. Perform LEFT BLEED AIR DUCTS leak check. Repair as required.
  3. Do close out.

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