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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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06/30/21

Message Overview:

Message Name:

WING CROSS-BLEED VALVE MECHANICALLY CLOSED WITH AMBER INTERMEDIATE POSITION INDICATION ON EICAS

Message Code: 301OBS007
Effectivity: All
System: Wing Cross Bleed Valve system
System Description: 30-11-00
Schematic Diagram: 30-11-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 30-11-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Message Description:

The Wing Cross-Bleed Valve is mechanically closed with an amber intermediate position indication on the Engine Indication and Crew Alerting System (EICAS).

Possible Causes:

  • Wing Cross-Bleed Valve (L33)
  • Junction Box (JB3)/PCB3
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Connect Electrical Power to the Aircraft AMM 24-00-00-861-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Remove the Electrical Power from the Aircraft AMM 24-00-00-861-802 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Electrical/Electronic Safety Precautions AMM 24-00-00-910-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Junction Box JB3 AMM 24-00-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Junction Box JB3 AMM 24-00-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Junction Box JB3 Circuit-Cards AMM 24-00-02-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Junction Box JB3 Circuit-Cards AMM 24-00-02-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Wing Cross-Bleed Valve AMM 30-11-09-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Wing Cross-Bleed Valve AMM 30-11-09-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the External Avionics-Compartment
Access-Panel (140BB)		 AMM 52-45-11-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the External Avionics-Compartment
Access-Panel (140BB)		 AMM 52-45-11-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Belly Fairing Access-Panels
(181BB, 183BB, 185BL/186BR, 185CL/186CR)		 AMM 53-61-19-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Belly Fairing Access-Panels
(181BB, 183BB, 185BL/186BR, 185CL/186CR)		 AMM 53-61-19-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Safety Precautions - Maintenance Practices - ALL SPM 20-00-01-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. On the wing cross-bleed valve, check that the manual lever is at the closed position.

    1. If the manual lever is not at closed position, set to closed position and continue with next step.
    2. If the manual lever is at closed position, continue with next step.

  2. Disconnect the electrical connector (L33P1) from the wing cross-bleed valve L33. Perform a continuity check between the pins of electrical receptacle (L33J1) of the cross-bleed valve as follows:

    From To Result
    L33J1-1 L33J1-6

    1. If there is no continuity, go to step 6.
    2. If there is continuity, continue with the next step.

  3. Perform a continuity check within electrical receptacle (L33J1) of the wing cross-bleed valve as follows:

    From To Result
    L33J1-5 L33J1-6

    1. If there is no continuity, go to step 6.
    2. If there is continuity, continue with the next step.

  4. Disconnect the electrical connector P647. Perform a continuity check as follows:

    From To Result
    P647-1 L33P1-5

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

  5. Disconnect the electrical connectors BMC 1 connector (A69P1), BMC 2 connector (A70P1) and DAU 3 connector (A30BP1). Perform a continuity check between electrical connector P647 and the electrical connector that follows:

    From To Result
    P647-1 A69P1-14
    P647-1 A70P1-14
    P647-1 A30BP1-F5

    1. If there is continuity, do close out.
    2. If there is no continuity, repair or replace the defective wiring as required or replace the PCB3/JB3 and do close out.

  6. Replace the wing cross-bleed valve.
  7. Do close out.

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