# SDR SWAA2013092320362

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 19, 2013
- Submitted: September 24, 2013
- Operation: Air carrier
- Aircraft: [N478WN](https://openairdocs.org/aircraft/N478WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33989
- Aircraft time: 32,915 hours, 19,231 cycles
- Engine: Ge CFM567B24
- Engine time: 13,051 hours, 7,673 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Part number: CFM567B
- Part serial: 876482
- Condition: Failed
- Location: Left
- Stage of operation: CR
- How discovered: O
- Nature of condition: E, J
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2013092320362

## Discrepancy

INFLIGHT SHUTDOWN, AIR TURN BACK, DECLARED EMERGENCY AT FL390 CRUISE, NR 1 ENGINE HAD HARD VIBRATION, VIB GAUGE WENT TO 4.9. FOLLOWED BY WHITE BOX AROUND ENGINE INDICATORS LOWER FOLLOWED BY ENGINE ROLL BACK & ENGINE FAIL INDICATOR ON EGT GAUGE.  VIBRATION PERSISTED WELL INTO ENGINE SHUTDOWN. NO FIRE, OVER SPEED ALL INDICATION WERE NORMAL UNTIL THE EVENT AT SHUTDOWN NR 2 READ 0.  R & R NR 1 ENGINE ASSEMBLY IAW MT.

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