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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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04/16/25

Message Overview:

Message Name:

EHSV RIGGING/ SCU

Message Code:

3250023DWY

Associated CAS:

None

Reporting LRU: Steering Control Unit (SCU)
System Description: 32-51-00 - Nosewheel-steering Control System
Schematic Diagram: None
Wiring Diagram: None

Message Description:

The Steering Control Unit (SCU) declare the rigging of the Electro-Hydraulic Servo-Valve (EHSV) at fault.

Possible Causes:

  • Electro-Hydraulic Servo-Valve (EHSV) (L12)
  • Steering Control Unit (SCU) (A36)

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Full Throttle Blog/Forum Articles/Infoservice/Newsletter: None

Flight Operation Notifications Manual (FONM): None

Quick Links:

None

Troubleshooting Recommendations:

Perform the Rigging of the Nosewheel-Steering Control System as per AMM TASK 32-51-00-820-801.

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