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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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04/24/25

Message Overview:

Message Name:

[BMC2] L WING SPPLY LEAK D LOOP/WRG

Message Code:

3616527BMC

Reporting LRU: Bleed Management Controller 2 (BMC)
Associated CAS: L WING A/ICE FAIL (Caution)
WING A/ICE FAULT (Advisory)
System Description: 36-12-00 - Bleed-Air Leak-Detection System
Schematic Diagram: [ G5000 ]  [ Global Express ]  [ Global XRS ] SSM 36-12-00-101 - Bleed Air Leak Detection System - Electrical Schematic
Wiring Diagram: [ G5000 ]  [ Global Express ]  [ Global XRS ] WM 36-12-00-1_003 - Sheet 3 - Center/AFT Fuselage - [9004-9024]
[ G5000 ]  [ Global Express ]  [ Global XRS ] WM 36-12-03-1_001 - Sheet 1 - Centre/Aft Fuselage - ALL

Message Description:

The Left Wing Supply (SPPLY) Loop circuit connected to Bleed Management Controller 2 (BMC) has been detected with an Open Center Conductor or short circuit between the Center Conductor and the Outer Sheath. Inhibited during Take-Off and Landing.

Possible Causes:

  • Bleed Management Controller 2 (BMC) (A70)
  • Left Anti-Ice Duct Loop E (MT99)
  • Left Anti-Ice Duct Loop F (MT187)
  • Left Anti-Ice Duct Loop G (MT188)
  • Left Anti-Ice Duct Loop H (MT189)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin:

  • AW700-36-0365 - Bleed Management Controller - Data Gathering to Reduce No Fault Found (NFF) Rate

Full Throttle Blog/Forum Articles/Infoservice/Newsletter:

Flight Operation Notifications Manual (FONM): None

NOTES:

  • Always verify you are working with the current document revision. Access the CIC website to ensure the latest document revision.
  • Questionnaire for replacing the BMC. Follow instructions using this (Fill out form).

Quick Links:

Grounding of the Aircraft [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM10-11-00-867-801
Removal of the Covers and Plugs [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM10-12-00-020-801
Installation of the Covers and Plugs [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM10-12-00-420-801
Standard Aircraft Configuration for Maintenance [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM12-00-00-867-801
Aircraft Walkaround (for Maintenance) [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM12-00-00-867-802
Connect Electrical Power to the Aircraft [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-00-00-861-801
Remove the Electrical Power from the Aircraft [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-00-00-861-802
Electrical/Electronic Safety Precautions [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-00-00-910-801
Electrostatic Discharge Safety Precautions [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-00-00-910-802
Removal of the Bleed Management Controller [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM36-11-33-000-801
Installation of the Bleed Management Controller [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM36-11-33-400-801
Operational Test of the Bleed Management Controller [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM36-11-33-710-801
Bleed Leak-Detection-Loops and Components Maintenance Practices [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM36-12-00-910-801
Operational Test of the Bleed Leak-Detection-Loops [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM36-12-01-710-801
Access to Active Faults [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM45-45-00-970-802
Access to Stored Faults [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM45-45-00-970-803
Access to System Diagnostics [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM45-45-00-970-804
Flight Deck Effect to Fault Correlations [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM45-45-00-970-821
Wire Repair - Maintenance Practices - ALL [ G5000 ]  [ Global Express ]  [ Global XRS ] SPM20-12-10-02

Troubleshooting Recommendations:

  1. Disconnect A70P2 from BMC 2.
  2. Measure Insulation resistance and line resistance of the detection loops as per the Leak Detection Elements troubleshooting sheet. Make sure line resistance and insulation values are within the specified limits.

    1. If the values are within specified limits, go to step 4.
    2. If values are not within the specified limits, continue with next step.

  3. Replace faulty elements.

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

  4. 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.

  5. Perform wiring checks of the remaining wires linking the Left A/ICE DUCT Loops circuit to BMC2.

    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. Replace BMC 2.
  7. Do close out.

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