03/02/21
Message Overview:
Message Description:
Right Outboard Ground Spoiler fault detected by Spoiler Electronic-Control Unit #2 (SECU 2).
Possible Causes:
- Right Outboard Ground Spoiler Proximity Sensor (PX14)
- Spoiler Electronic-Control Unit (SECU) No.2 (A119)
- Ground Spoiler Selector Valve (GSSV) 2
- Right Outboard Ground Spoiler Actuator
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin:
- AW300-27-0037 - Spoiler Electronic Control Unit (SECU) - Circuit Breaker Reset Procedure (20501 - 20999)
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| 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 27-61-05-820-801 |
| 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 |
| Rigging Check of the Ground-Spoiler Control Surface | AMM 27-63-09-220-801 |
| Wiring - Maintenance Practices - ALL | SPM 20-12-00-02 |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 |
| Electrical Connectors - Maintenance Practice - ALL | SPM 20-20-00-02 |
Troubleshooting Recommendations:
- Follow the circuit breakers reset procedure documented in AW300-27-0037.
- Check the current faults and fault history for problems related to the Left Inboard Ground Spoiler Proximity Sensor (LINGSST Sensor / ATA27-60).
- 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 SECU's and tray's connectors for damages. Repair/replace as required.
- If system checks are good, do close out.
- If fault remains, continue with next step.
- Swap 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 2 connector A119AP1 and Ground Spoiler Selector Valve 2 connector MPE35P1. Repair/replace as required.
- If system checks are good, do close out.
- If fault remains, continue with next step.
- Swap 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.