# SDR SWAA2022122885278

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 25, 2022
- Submitted: December 28, 2022
- Operation: Air carrier
- Aircraft: [N447WN](https://openairdocs.org/aircraft/N447WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33720
- Aircraft time: 62,561 hours, 37,050 cycles
- System (JASC): [7720 · Engine Temperature Indicating System](https://openairdocs.org/jasc/7720)
- Part: Thermocouple
- Condition: Out Of Range
- Location: Nr 1 Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2022122885278

## Discrepancy

DEPARTED ATL ON T/O PASSING 3000FT NR 1 ENGINE OVERHEAT .FOLLOWED QRC QRH REDUCED THRUST STAYED WITHIN LIMITS .LANDED ATL.  FOUND NR 1 ENG T49.5 T3&T4 OUT OF RANGE; REMOVED AND REPLACED T3 & T4 THERMOCOUPLES REF AMM 77-21-01 PERFORMED ENGINE RUN OPS NORMAL RUN

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