# SDR ASAA2018021023477

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2018
- Submitted: February 12, 2018
- Operation: Air carrier
- Aircraft: [N461AS](https://openairdocs.org/aircraft/N461AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36363
- Aircraft time: 15,434 hours, 5,093 cycles
- System (JASC): [3097 · Ice/Rain Protection System Wiring](https://openairdocs.org/jasc/3097)
- Part: Connector
- Condition: Contaminated
- Location: Solenoid Valve
- Part time: 1,204 hours, 431 cycles
- Stage of operation: TX
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018021023477

## Discrepancy

DURING PREFLIGHT INSPECTION,  FOUND THE NR 1 ENGINE, FOUND THE ENGINE & WING CONTROL CIRCUIT BREAKER OPEN.  ACFT GROUNDED IAW SSM 30-11-11.  NR 2 ENGINE GROUND WING THERMAL ANTI-ICE SOLENOID RESISTANCE READS HIGH AT P5-11 CONNECTOR D648 PIN 29.  DISCONNECTED THE CONNECTOR AND  FOUND THE SOLENOID CONNECTOR CONTAMINATED. REMOVED AND REPLACED THE SOLENOID VALVE IAW AMM 30-11-12-400-801, STEPS 3A THROUGH 3H(S).  OPS CHECKED NORMAL. GROUND VERIFICATION GOOD.

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