# SDR SWAA2024012343553

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 22, 2024
- Submitted: January 23, 2024
- Operation: Air carrier
- Aircraft: [N570WN](https://openairdocs.org/aircraft/N570WN), registered now
- Make and model: Boeing 737-7CT
- Registry model: [Boeing 737-7CT](https://openairdocs.org/model/boeing-737-7ct) (OpenAirDocs)
- Aircraft serial: 33657
- Aircraft time: 48,758 hours, 25,331 cycles
- Engine: Cfmint CFM567B243
- Engine time: 48,757 hours, 25,331 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Hmu
- Condition: Faulted
- Location: Nr 1 Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: E, R
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2024012343553

## Discrepancy

TOD AT 380; NR 1 ENG EXPERIENCED VIBRATION/SHUTTER W/ROLLBACK. ENGINE RECOVERED; THEN ANOTHER SHUDDER; THEN ROLLBACK SHUTDOWN ENGINE AND CONTINUED TO DEN. NO EGT LIMITS EXCEEDED. ON LANDING; BOTH (CONTD) (CONTD FROM ABOVE) ENGINE CONTROL LIGHTS ILLUMINATED<[01] R+R ENG #1 FUEL PUMP IAW AMM 73-11-11. R+R ENG #1 HMU IAW AMM 73-21-10. OPS CHECK GOOD. POWER ASSURANCE CHECK GOOD. REF WO-69101538 FOR OTHER WORK PERFORMED.  CW RII INSPECTIONS PER MT 773-21-10 AND MPM 10.02

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