# SDR IPXA2022111454286

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 10, 2022
- Submitted: November 14, 2022
- Operation: Air carrier
- Aircraft: [N579UP](https://openairdocs.org/aircraft/N579UP), registered now
- Make and model: Boeing 747-45E
- Registry model: [Boeing 747-45E](https://openairdocs.org/model/boeing-747-45e) (OpenAirDocs)
- Aircraft serial: 26062
- Aircraft time: 113,553 hours, 19,145 cycles
- System (JASC): [7500 · Engine Bleed Air System](https://openairdocs.org/jasc/7500)
- Part: Thermal Switch
- Condition: Faulted
- Location: Eng Bleed
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2022111454286

## Discrepancy

ATB,  EICAS CAUTION,  BLEED DUCT LEAK RT REFER FIM 36-11-00-812-986 AND AMM 26-18-02 REMOVE AND REPLACED THERMAL SWITCH S888 & S890.  SYSTEM TEST AND OPERATIONAL TEST SATIS IAW AMM 26-18-00

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