# SDR UIEA2016121901034

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 16, 2016
- Submitted: December 20, 2016
- Operation: Air carrier
- Aircraft: [N747BC](https://openairdocs.org/aircraft/N747BC), registered now
- Make and model: Boeing 747-4J6
- Registry model: [Boeing 747-4J6](https://openairdocs.org/model/boeing-747-4j6) (OpenAirDocs)
- Aircraft serial: 25879
- Aircraft time: 42,431 hours, 10,912 cycles
- System (JASC): [3010 · Airfoil Anti/De-ice System](https://openairdocs.org/jasc/3010)
- Part: Thermal Switch
- Part number: 9750304002
- Condition: Inoperative
- Stage of operation: IN
- How discovered: C
- Nature of condition: M
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2016121901034

## Discrepancy

FOUND THERMAL SWITCH FUNCTION NOT WORKING, TOTAL 12EA.(<P>1) IAW AMM 26-18-02-004-001, 25-26-18-02-404-011 REV87 REPLACED THERMAL SWITCH TOTALL 12EA. 2) TRANSFER TEST TO T/C L260180101 AND NRC 456.


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