# SDR AALA201907079014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 6, 2019
- Submitted: July 15, 2019
- Operation: Air carrier
- Aircraft: [N880NN](https://openairdocs.org/aircraft/N880NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 40769
- Aircraft time: 23,963 hours, 9,719 cycles
- Engine: Cfmint CFM567B242
- Engine time: 55,624 hours, 22,677 cycles
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Fan
- Condition: Out Of Balance
- Location: Lt Engine
- Stage of operation: DE
- How discovered: O
- Nature of condition: E
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201907079014

## Discrepancy

AIRCRAFT WAS GROUNDED: PILOT REPORTS ON DESCENT LEFT ENGINE WENT TO 2.0 TO 2.3, AT FLIGHT IDLE THEN BEGAN TO FLUCTUATE. MAINTENANCE REPORTS VIBRATION WITHIN LIMITS IAW AMM 71-00-00. ***SUPPLEMENTAL INFORMATION: MAINTENANCE ACCOMPLISHED #1 ENG FAN BALANCE IAW CARD 77-95-12.*** (CLOSED)

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