# SDR SWAA2026040987166

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 6, 2026
- Submitted: April 9, 2026
- Operation: Air carrier
- Aircraft: [N8657B](https://openairdocs.org/aircraft/N8657B), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 42535
- Aircraft time: 37,434 hours, 18,234 cycles
- Engine: Cfmint CFM567B27E
- Engine time: 37,433 hours, 18,234 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Surges
- Location: Nr 1
- Stage of operation: CL
- How discovered: 9
- Nature of condition: E, O, R
- Precautionary procedure: D, O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2026040987166

## Discrepancy

AT APPROX 14,000 FT NR 1 ENGINE BEGAN TO SURGE/STALL WITH VIBRATION. AT 70% N1 SURGE/STALL WENT AWAY. AT IDLE; VIBRATION CEASED. AFTER ENGINE SHUTDOWN; SMALL FIRE STARTED FIRE BRIGADE USED WATER EXTINGUISHING AGENT 2 TIMES. NO OVERWEIGHT LANDING.<[01] REF. TTG8Q00XT53D FOR NR 1 ENGINE REMOVAL AND REPLACEMENT PER MT 771-00-00.;[02] RII: VERIFIED NR 1 ENGINE R/R PER TTG8Q00XT53D MT 771-00-00.

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