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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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For AOG assistance contact:

CRC Montreal (YUL)
Quick Links

04/02/21

Message Overview:

Message Name:

TSS OVLD FAULT

Message Code:

B3-648437

Associated CAS:

None

Reporting LRU: TSS;MLGDNLK
System Description: 34-43-00
Schematic Diagram: 34-43-00
Wiring Diagram: 34-43-01

Message Description:

PSEU detects an overload condition on the discrete output to the TSS.

Possible Causes:

  • Traffic Alert and Collision-Avoidance System (TCAS) Transceiver (TSS-4100) (A238)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Fault Confirmation Procedure:

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

    1. PSEU-145 XX 366 10 EXCT XXXX-XXXX XXXX-XXXX XXXX-TXXX 366B:12;DOT24A OVERCURRENT

Quick Links:

Removal of the Traffic Surveillance System (TSS) External Compensation Unit (ECU) AMM 34-43-11-000-801
Installation of the Traffic Surveillance System (TSS) External Compensation Unit (ECU) AMM 34-43-11-400-801
Standard Practices - Replace Wiring SPM 20-12-00-02
Standard Practices - Repair Wiring SPM 20-12-10-02

Troubleshooting Recommendations:

  1. Verify user interface, TSS A238 and related wiring.

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