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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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Quick Links

06/30/21

Message Overview:

Message Name:

EMERGENCY LIGHT - PASSENGER DOOR LIGHT UNSERVICEABLE

Message Code: 335OBS002
Effectivity: All
System: Emergency Lighting System
System Description: 33-50-00
Schematic Diagram: 33-51-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 33-51-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Message Description:

The Passenger Door Exterior Emergency Light is not illuminating.

Possible Causes:

  • Emergency Light Bulb
  • Light Assembly
  • Passenger Door Emergency Light (DS25)
  • Emergency Lighting Power Supply (ELPS) 1 (A159)
  • Emergency Lighting Power Supply (ELPS) Battery
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Removal of the Passenger-Door Emergency Light AMM 33-51-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Passenger-Door Emergency Light AMM 33-51-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Replacement of the Passenger-Door Emergency Light-Bulb AMM 33-51-01-960-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Emergency Lighting Power Supplies (ELPS) AMM 33-51-09-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Emergency Lighting Power Supplies (ELPS) AMM 33-51-09-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Replacement of the Internal Battery of the Emergency Lighting
Power Supplies (ELPS)		 AMM 33-51-09-960-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Functional Test of the Emergency Lights Power-Supplies AMM 33-51-09-720-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

CAUTION: DO NOT OPERATE THE INTERNAL AND EXTERNAL LIGHTING FOR MORE THAN 10 MINUTES. CONTINUED OPERATION WILL DECREASE THE CHARGE OF THE BATTERIES OF THE EMERGENCY LIGHTING POWER-SUPPLIES.

  1. Is there more than one light not illuminating?

    1. If NO, go to step 5.
    2. If YES, the ELPS 1 battery may be discharged. Perform AMM TASK 33-51-09-720-801 and continue with next step.

  2. Does the light illuminate?

    1. If YES, do close out.
    2. If NO, continue with next step.

  3. Does ELPS 1 hold its charge?

    1. If NO, do close out.
    2. If YES, continue with next step.

  4. Check the ELPS status in CAIMS, using the troubleshooting steps contained in EMER LIGHTS OFF or EMER LIGHTS ON CAS message tasks.
  5. Check if only the passenger door Emergency light does not illuminate, inspect the Emergency light bulb. Is the Light bulb in good working condition?

    1. If NO, replace the bulb and do close out.
    2. If YES, continue with next step.

  6. In the flight compartment, on the PASS SIGNS/EMER LIGHTS control panel (AP13), set the EMER LIGHTS switch to ON.
  7. Perform a voltage check as follows:

    EXT Emer light Expected Result
    DS25-1 6 VDC

    1. If there is 6 VDC, replace the light assembly and do close out.
    2. If there is no 6 VDC, continue with next step.

  8. In the flight compartment, on the PASS SIGNS/EMER LIGHTS control panel (AP13), set the EMER LIGHTS switch to OFF.
  9. Perform a continuity check between ELPS 1 and the Emergency light as follows:

    From To Result
    A159P1-G DS25-1
    A159P1-D Ground
    DS25-2 Ground

    1. If there is no continuity, repair defective wiring as required and do close out.
    2. If there is continuity, continue with next step.

  10. Replace ELPS 1.
  11. Do close out.

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