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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

04/15/21

Message Overview:

Message Name:

LOW FUEL TEMP EXCEEDANCE

Message Code:

B3-303734

Associated CAS:

R ENG FUEL TEMP LOW
(Advisory)

Reporting LRU: R ENG EXCEEDANCE
System Description: 76-11-00
Schematic Diagram: None
Wiring Diagram: None

Message Description:

Right engine low fuel temperature threshold exceedance occurred.

[MCID 2007]
A Type 2 low fuel temperature exceedance has been detected.

Possible Causes:

  • Loss of motive flow return to the aircraft fuel tank
  • Fuel Heater Oil Cooler (FHOC)

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Component Location AMM 28-41-00-992-801
Removal of the Temperature Sensor AMM 28-41-21-000-801
Installation of the Temperature Sensor AMM 28-41-21-400-801
Wiring - Maintenance Practices - ALL SPM 20-12-00-02
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02
Electrical Connectors - Maintenance Practice - ALL SPM 20-20-00-02

Troubleshooting Recommendations:

  1. MCID 2007 fault present, troubleshoot using the following steps for aircraft and engine fault isolation with reference to the Light Engine Maintenance Manual Subtask 72-00-00-810-386-A01.

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