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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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03/10/21

Message Overview:

Message Name:

NGDNLK PL13 OVLD FAULT

Message Code:

B3-006622

Associated CAS:

None

Reporting LRU: PL13; NGDNLK
System Description: 32-60-00
Schematic Diagram: 32-61-00
Wiring Diagram: 33-41-01
33-41-01
32-61-09

Message Description:

Proximity Sensor Electronic Unit detects an overload condition on the discrete output to the Light Panel PL13.

Possible Causes:

  • Lighting Control Panel (PL13)
  • Relay (K15)
  • Proximity-Sensor Electronic Unit (PSEU) (A9)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Removal of the Proximity-Sensor Electronic Unit (PSEU) AMM 32-61-09-000-801
Installation of the Proximity-Sensor Electronic Unit (PSEU) AMM 32-61-09-400-801
Functional Test of the Proximity-Sensor Electronic Unit (PSEU) AMM 32-61-09-720-801
Removal of the LIGHTING Control Panel AMM 33-41-01-000-801
Installation of the LIGHTING Control Panel AMM 33-41-01-400-801
Operational Test of the External Lights AMM 33-40-00-710-801
Standard Practices - Replace Wiring SPM 20-12-00-02
Standard Practices - Wire Repair SPM 20-12-10-02

Troubleshooting Recommendations:

  1. Do wiring check from the Lighting Panel connector PL13P2 Pin 34 to the PSEU connector A9AP1 Pin 3K. Repair as required.

    1. If system checks are good, do close out.
    2. If fault remains continue with next step.

  2. Do wiring check from the Lighting Panel connector PL13P2 Pin 35 to the Right Secondary Power Center connector A38P3 Pin 5. Repair as required.

    1. If system checks are good, do close out.
    2. If fault remains continue with next step.

  3. Replace the Lighting Panel.

    1. If system checks are good, do close out.
    2. If fault remains continue with next step.

  4. Replace the Nose Taxi Relay K15.

    1. If system checks are good, do close out.
    2. If fault remains continue with next step.

  5. Replace the PSEU.
  6. Do close out.

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