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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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04/09/21

Message Overview:

Message Name:

A/I PRESSURE SENSOR 1B

Message Code:

B3-302140

Associated CAS Message:

None

Reporting LRU: R ENG AI PRES
System Description: 30-21-00
Schematic Diagram: 75-10-00
Wiring Diagram: 71-50-00

Message Description:

Right engine anti-ice pressure sensor fault 1B.

[MCID 1211]
Anti-Ice Pressure Sensor 1B.
Detection of a fault in the engine anti-ice pressure sensor harness between the engine anti-ice pressure sensor and the ECU B. The ECU B cannot support full system operation.

Possible Causes:

  • Wiring Harness (W6)
  • Anti-ice Differential Pressure Switch
  • Full Authority Digital Engine Control Unit (FADEC) Electronic Control Unit B (ECU) (A42)

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Component Location AMM 30-21-00-992-801
Operational Test of the Nacelle Anti-Ice System AMM 30-21-00-710-801
Leak Test of the Nacelle Anti-Ice System AMM 30-21-00-790-801
Removal of the Cowl Anti-Ice Valve AMM 30-21-01-000-801
Installation of the Cowl Anti-Ice Valve AMM 30-21-01-400-801
Removal of the Anti-Ice Dual Pressure Switch AMM 30-21-03-000-801
Installation of the Anti-Ice Dual Pressure Switch AMM 30-21-03-400-801
General Visual Inspection of the Engine Wiring Harness AMM 71-50-05-400-802
Removal of the FADEC Electrical Harness from the Right Engine AMM 71-50-05-000-803
Installation of the FADEC Electrical Harness on the Right Engine AMM 71-50-05-400-803
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 1211 fault present, troubleshoot using the following steps for aircraft and engine fault isolation with reference to the Light Engine Maintenance Manual Subtask 72-00-00-810-206-A01.

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