11/05/25
Message Overview:
Message Name:
R IB GR SPOILER
Message Code:
B3-007911
| Associated CAS: | SPOILERS FAULT (CAUTION) |
| Reporting LRU: | SPOILER ECU 1 |
| System Description: | 27-61-00 - Control and Indication System (Spoilers) 27-62-00 - Multifunction Spoilers 27-63-00 - Ground Spoilers |
| Schematic Diagram: | 27-61-00-101 - Flight-Spoiler Control and Indication System 27-62-00-101 - Multi-Function Spoiler 27-63-00-101 - Ground Spoiler |
| Wiring Diagram: | 27-61-09 - Flight-Spoiler Control Lever (ECU 1) - ALL 27-62-05 - Spoiler Electronic -Control Unit (SECU) 1 - ALL |
Message Description:
Right Inboard Ground Spoiler fault detected by Spoiler Electronic-Control Unit #1 (SECU1).
Possible Causes:
- Right Inboard Ground Spoiler Proximity Sensor (PX44)
- Spoiler Electronic-Control Unit 1 (SECU 1) (A118)
- Ground-Spoiler Selector Valve (GSSV 1) (MPE34)
- Right Inboard Ground Spoiler Actuator
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Full Throttle Blog/Forum Articles/Infoservice/Newsletter: None
Flight Operation Notifications Manual (FONM): None
Quick Links:
| Standard Aircraft Configuration for Maintenance | AMM 12-00-00-867-803 |
| Electrical/Electronic Safety Precautions | AMM 24-00-00-910-801 |
| Electrostatic-Discharge Safety Precautions | AMM 24-00-00-910-802 |
| Connect Electrical Power to the Aircraft | AMM 24-00-00-861-801 |
| Removal of the Spoiler Electronic-Control Unit (SECU) | AMM 27-61-05-000-801 |
| Installation of the Spoiler Electronic-Control Unit (SECU) | AMM 27-61-05-400-801 |
| Electronic Rigging of the Spoiler Electronic-Control Unit (SECU) | AMM 27-61-05-820-802 |
| Removal of the Spoiler Proximity Sensor | AMM 27-61-09-000-801 |
| Installation of the Spoiler Proximity Sensor | AMM 27-61-09-400-801 |
| Operational Test of the Ground Spoiler System | AMM 27-63-00-710-802 |
| Removal of the Ground-Spoiler Selector Valve | AMM 27-63-01-000-801 |
| Installation of the Ground-Spoiler Selector Valve | AMM 27-63-01-400-801 |
| Removal of the Ground Spoiler Actuator | AMM 27-63-05-000-802 |
| Installation of the Ground Spoiler Actuator | AMM 27-63-05-400-802 |
| Rigging of the Ground-Spoiler Control Surface | AMM 27-63-09-820-801 |
Troubleshooting Recommendations:
- Check the current faults and fault history for problems related to the Left Inboard Ground Spoiler Proximity Sensor (LINGSST Sensor / ATA 27-60).
- If one of the listed fault is found, continue with the troubleshooting of this failure.
- If none of the listed faults is recorded in the MDC, continue with next step.
- Do Electronic Rigging of the Spoiler Electronic-Control Unit.
- If system checks are good, do close out.
- If fault remains, continue with next step.
- Visually inspect the SECU's and the tray's connectors for damages. Repair/replace as required.
- If system checks are good, do close out.
- If fault remains, continue with next step.
- Interchange SECUs.
- If system checks are good, do close out.
- If fault remains, continue with next step.
NOTE:An Electronic Rigging of the SECUs is necessary after a swap or a SECU replacement.
- Do Rigging Check of the Ground-Spoiler Control Surface.
- If check is good, go to step 8.
- If check is not good, continue with next step.
- Do Rigging of the Ground-Spoiler Control Surface.
- If system checks are good, do close out.
- If fault remains, continue with next step.
- Do wiring checks between SECU 1 connector A118AP1 and Ground Spoiler Selector Valve 1 connector MPE34P1. Repair/replace as required.
From To Result A118AP1-11H MPE34P1-8 A118AP1-11 MPE34P1-9 - If system checks are good, do close out.
- If fault remains, continue with next step.
- Interchange Ground Spoiler Selector Valves.
- If system checks are good, do close out.
- If fault remains, continue with next step.
- Swap Ground Spoiler Actuators. (All Ground Spoiler Actuators are interchangeable).
- Do close out.