# SDR SWAA2025070186683

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 29, 2025
- Submitted: July 1, 2025
- Operation: Air carrier
- Aircraft: N239WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34714
- Aircraft time: 62,830 hours, 37,929 cycles
- Engine: Cfmint CFM567B242
- System (JASC): [7520 · Engine Cooling System](https://openairdocs.org/jasc/7520)
- Part: Valve
- Condition: Faulted
- Location: Nr 1 Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2025070186683

## Discrepancy

#1 ENG EGT ROSE RAPIDLY. #1 ENG EGT YELLOW ALERT FLASHED FOR 30 SECONDS. RETARTED #1 ENG THROTTLE; EGT RETURNED TO NORMAL R/R HPTACC VALVE PER AMM 75-21-01 NO LEAKS; TESTS PASSED

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