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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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03/03/21

Message Overview:

Message Name:

HYDRAULIC SOLENOID 7

Message Code:

B3-303046

Associated CAS:

R ENGINE FAULT
(Advisory)

Reporting LRU: R ENG HYD BYP
System Description: 29-12-00
Schematic Diagram: 76-11-00
Wiring Diagram: None

Message Description:

Right engine hydraulic bypass solenoid fault 7. A fault in the hydraulic bypass control valve harness between the hydraulic bypass control valve and the Electronic Control Unit (ECU) A or B was sensed. The ECU A or B cannot be further isolated because of the loss of the cross channel data link. MCID 1611

Possible Causes:

  • W1 Wiring Harness
  • W4 Wiring Harness
  • W6 Wiring Harness
  • Hydraulic Pump By-pass Solenoid
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

None

Troubleshooting Recommendations:

  1. MCID 1611 fault present, troubleshoot using the following steps for aircraft and engine fault isolation with reference to the Light Engine Maintenance Manual TASK 72-00-00-810-343.

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