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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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07/08/19

Message Overview:

L PACK AUTO FAIL
(Caution)

DDG Reference: 21-52
Pilot Action (QRH): ABNORM 2-2
System Description: 21-52-00
Schematic Diagram: 21-52-00  [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 21-52-01  [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

Automatic control of the left pack does not operate correctly.

Possible Causes:

  • Left Air Conditioning System Controller (ACSC)
  • Left Bleed Management Controller (BMC)
  • Left Pressure Inlet Flow Sensor
  • Left Pressure Inlet Pressure Transducer
  • Left Pressure Inlet Temperature Sensor
  • Left Temperature Control Valve
  • Left Temperature Heater Controller
  • Left Bleed Management Controller
  • Left Pressure Bleed Transducer
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Removal of Air Conditioning System Controllers AMM 21-60-21-000-801  [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of Air Conditioning System Controllers AMM 21-60-21-000-801  [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of Bleed Management Controller (BMC) AMM 36-11-33-000-801  [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of Bleed Management Controller (BMC) AMM 36-11-33-400-801  [ Global Express ]  [ G5000 ]  [ Global XRS ]
Active Faults AMM 45-45-00-970-802  [ Global Express ]  [ G5000 ]  [ Global XRS ]
Stored Faults AMM 45-45-00-970-803  [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair SPM 20-12-10  [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

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