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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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CRC Montreal (YUL)
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09/16/19

Message Overview:

Fault Message:

FADEC [OIL LEVEL SENSOR REF FREQ]

Fault Code:

4960228APU

Associated CAS:

None

Reporting LRU: Full-Authority Digital Engine-Controller (FADEC)
System Description: 49-60-00
Schematic Diagram: None
Wiring Diagram: None

Fault Description:

Auxiliary Power Unit (APU) Oil Synoptic Display indicates invalid data.

Possible Causes:

  • Auxiliary Power Unit (APU) Full Authority Digital Engine Controller (FADEC) (A108)
  • Oil Level Sensor (MT2)

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

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Troubleshooting Recommendations:

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