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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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For AOG assistance contact:

CRC Montreal (YUL)
Quick Links

07/06/21

Message Overview:

Message Name:

WASTE DUMP VALVE LEAKAGE

Message Code: 383OBS002
Effectivity: All
System: Water/Waste System
System Description: None
Schematic Diagram: None
Wiring Diagram: None

Message Description:

Leakage is found during routine maintenance.

Possible Causes:

  • Valve Seal
  • Waste Dump Valve

Troubleshooting Tips:

Advisory Wire/Service Bulletin:

  • AW700-38-0325 - Waste valve leakage

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Panel Mounted Ball Valve Assembly CMM 38-38-10 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Replace valve seal.

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

  2. Replace waste valve.
  3. Do close out.

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