04/09/21
Message Overview:
Message Description:
Left engine anti-ice control valve fault 8.
[MCID 1209]
Anti-Ice Control Valve 8.
Detection of a fault in the engine anti-ice control valve harness between the engine anti-ice control valve and the ECU A/B.
Possible Causes:
- Wiring Harness (W6)
- Wiring Harness (W3)
- Wiring Harness (W1)
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| Component Location | AMM 30-21-00-992-801 |
| Operational Test of the Nacelle Anti-Ice System | AMM 30-21-00-710-801 |
| Leak Test of the Nacelle Anti-Ice System | AMM 30-21-00-790-801 |
| Removal of the Cowl Anti-Ice Valve | AMM 30-21-01-000-801 |
| Installation of the Cowl Anti-Ice Valve | AMM 30-21-01-400-801 |
| Removal of the Anti-Ice Dual Pressure Switch | AMM 30-21-03-000-801 |
| Installation of the Anti-Ice Dual Pressure Switch | AMM 30-21-03-400-801 |
| General Visual Inspection of the Engine Wiring Harness | AMM 71-50-00-210-802 |
| Removal of the FADEC Electrical Harness from the Left Engine | AMM 71-50-05-000-802 |
| Installation of the FADEC Electrical Harness on the Left Engine | AMM 71-50-05-400-802 |
| 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:
- MCID 1209 fault present, troubleshoot using the following steps for aircraft and engine fault isolation with reference to the Light Engine Maintenance Manual Subtask 72-00-00-810-204-A01.