# SDR IPXA2017110123175

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 31, 2017
- Submitted: November 1, 2017
- Operation: Air carrier
- Aircraft: [N456UP](https://openairdocs.org/aircraft/N456UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25477
- Aircraft time: 27,746 hours, 16,905 cycles
- System (JASC): [3412 · Outside Air Temperature Indicator/Sensor](https://openairdocs.org/jasc/3412)
- Part: Relay
- Condition: Inoperative
- Location: Tat
- Stage of operation: TO
- 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/IPXA2017110123175

## Discrepancy

TAT PROBE EICAS CAUTION MESSAGE SHORTLY AFTER ROTATION RESULTED IN ATB DUE TO ICING CONDITIONS AT DESTINATION. REPLACED RELAY K140 AND REPLACED TAT SENSOR IAW AMM 34-12-02. OPS CK GOOD. IPC REF 34-12-02-5.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.