06/30/21
Message Overview:
Message Name:
FUSELAGE STROBE/ANTICOLLISION LIGHT POWER-SUPPLIES UNSERVICEABLE
| Message Code: | 334OBS005 |
| Effectivity: | All |
| System: | Strobe Lighting System |
| System Description: | 33-43-00 |
| Schematic Diagram: | 33-43-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 33-43-01 [ Global Express ] [ G5000 ] [ Global XRS ] |
Message Description:
No output from Strobe/Anticollision Lights (BEACON) Power-Supply.
Possible Causes:
- Upper Fuselage Beacon Light Power-Supply (A148)
- Lower Fuselage Beacon Light Power-Supply (A119)
- Beacon Light Switch (S2)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| Connect Electrical Power to the Aircraft | AMM 24-00-00-861-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Remove the Electrical Power from the Aircraft | AMM 24-00-00-861-802 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Opening of Non-Thermal Circuit Breakers | AMM 24-00-00-863-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Closing of Non-Thermal Circuit Breakers | AMM 24-00-00-863-802 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Electrical/Electronic Safety Precautions | AMM 24-00-00-910-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the EXTERNAL LIGHTS Control Panel | AMM 33-40-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the EXTERNAL LIGHTS Control Panel | AMM 33-40-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Fuselage Strobe/Anticollision Lights | AMM 33-43-09-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Fuselage Strobe/Anticollision Lights | AMM 33-43-09-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Operational Test of the Fuselage-Strobe/Anticollision Lights | AMM 33-43-09-710-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Safety Precautions - Maintenance Practices - ALL | SPM 20-00-01-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Set the BEACON switch to ON and check if all the fuselage strobe lights operate.
- If YES, do close out.
- If NO, replace the external lights control panel and continue with next step.
- Perform a voltage check at the connectors for the upper fuselage strobe/anticollision light power-supply A148 and for the lower fuselage strobe/anticollision power-supply A119 as follows:
From To Expected Result Result A148P1-A A148P1-B 28 VDC A119P1-A A119P1-B 28 VDC - If there is no voltage, repair the defective wiring as required and do close out.
- If there is voltage, continue with next step.
- Replace the applicable fuselage strobe/anticollision light power-supply.
- If fault remains, repair the defective wiring of the external lights control panel as required and do close out.
- If system checks are good, continue with next step.
- Perform the troubleshooting for CAS Message listed below:
- Do close out.