03/02/21
Message Overview:
Message Description:
Right Outboard Multi-Function Spoiler fault detected by Spoiler Electronic-Control Unit 2 (SECU 2).
Possible Causes:
- Spoiler Electronic-Control Unit 2 (SECU 2) (A119)
- Right Outboard Multi-Function Spoiler Power-Control Unit (MFS PCU) (MPE38)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin:
- AW300-27-0037 - Spoiler Electronic Control Unit (SECU) - Circuit Breaker Reset Procedure (20501 - 20999)
- AW300-27-0368 - Replacement of the Multifunction Spoiler Power Control unit (MFS PCU) - SB 100-27-17, SB 350-27-010
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 Multi-Function Spoiler System | AMM 27-62-00-710-801 |
| Removal of the Multi-Function Spoiler Power-Control Unit (MFS PCU) | AMM 27-62-01-000-801 |
| Installation of the Multi-Function Spoiler Power-Control Unit (MFS PCU) | AMM 27-62-01-400-801 |
| Rigging of the Multi-Function Spoiler Control-Surface | AMM 27-62-05-820-801 |
| Rigging Check of the Multi-Function Spoiler Control-Surface | AMM 27-62-05-220-801 |
| 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.
- 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 Multi-Function Spoiler Control-Surface.
- If check is good, go to step 7.
- If check is not good, continue with next step.
- Do rigging of the Multi-Function 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 Right Outboard Multi-Function Spoiler Power-Control Unit connector MPE38P1. Repair/replace as required.
- If system checks are good, do close out.
- If fault remains, continue with next step.
- Swap Multi-Function Spoiler Power-Control Unit. (All Multi-Function Spoiler Power-Control Unit are interchangeable).
- Do close out.