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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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03/29/21

Message Overview:

Message Name:

INTERNAL FAULT

Message Code:

B3-008119

Associated CAS:

None

Reporting LRU: WX RADAR CH A/B
System Description: 34-41-00
Schematic Diagram: 34-41-00
Wiring Diagram: 34-41-01

Message Description:

An internal fault is detected.

Possible Causes:

  • Weather Radar Receiver/Transmitter and Antenna (A3)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Fault Confirmation Procedure:

  1. Message# = 3
  2. {Term Definitions}

    1. WXRA-7 1X 354 01 EXCT XXXX-XXXX TXXX-XXXX XXXX-XXXX 354A: 24;ANTENNA FAULT
    2. WXRA-15 2X 354 10 EXCT XXXX-XXXX TXXX-XXXX XXXX-XXXX 354B: 24;ANTENNA FAULT
    3. WXRA-8 1X 354 01 EXCT XXXX-XXXT XXXX-XXXX XXXX-XXXX 354A: 25;XMTR/RCVR FAULT
    4. WXRA-16 2X 354 10 EXCT XXXX-XXXT XXXX-XXXX XXXX-XXXX 354B: 25;XMTR/RCVR FAULT

Quick Links:

Removal of the Weather Radar Receiver/Transmitter and Antenna AMM 34-41-01-000-801
Installation of the Weather Radar Receiver/Transmitter and Antenna AMM 34-41-01-400-801
Standard Practices - Replace Wiring SPM 20-12-00-02
Standard Practices - Repair Wiring SPM 20-12-10-02

Troubleshooting Recommendations:

  1. An internal fault is detected. Replace the WXR.

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