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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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Quick Links

05/15/23

Message Overview:

Message Name:

FUEL SPILL OUT OF FUEL VENTS

Identifier: 281OBS001
Effectivity: All
System: Fuel Vent System
System Description: 28-10-00
Schematic Diagram: None
Wiring Diagram: None

Message Description:

Fuel has spilled out of the fuel vents (NACA Scoops).

Possible Causes:

  • Ground not level
  • Scavenge Ejectors
  • Scavenge Ejector Check Valves
  • Surge Tank Inlet Check Valves
  • Surge Box Restrictors
  • Main Dive Vent Lines

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Notice To Operators (NTO): None

Flight Operation Notifications Manual (FONM): None

Quick Links:

Towing of the Aircraft AMM 09-10-00-584-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Fuel-System Safety Precautions AMM 28-00-00-910-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Leakage Rate Check of the Fuel Tank AMM 28-10-00-790-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Operational Test of the Vent System AMM 28-13-00-710-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Scavenge Ejector Pumps AMM 28-21-25-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Scavenge Ejector Pumps AMM 28-21-25-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Gather information from the crew or technicians on the circumstances surrounding the fuel spill by filling in the fuel spill questionnaire.
  2. Verify if the aircraft is on level ground.

    1. If the aircraft is level, continue with next step.
    2. If the aircraft is not on level ground, ensure the aircraft is level.

  3. If the aircraft was moved and the left and right wing tanks each contain more than 12,000 lbs, this could have caused fuel to enter the vent system and spill.
  4. Scavenge the fuel vent system using the steps located in AMM TASK 09-10-00-584-801. Does fuel still spill out of the vent system?

    1. If YES, continue with next step?
    2. If NO, do close out.

  5. Check the Scavenge Ejectors for possible FOD and inspect associated fittings.
  6. Check the Scavenge Ejector Check Valves and make sure they are not stuck open.
  7. Check the Surge Tank (climb vent) Inlet Check Valve.
  8. Check the Restrictor on the Surge Box.
  9. Check all Wiggins Fittings from the Scavenge Ejectors to Surge Box that are accessible from inside the of the wings.
  10. If no issues were discovered so far, access the Main Dive Vent Lines and confirm installation/orientation. Rectify if required.
  11. Do close out.

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