# SDR UALA2008111301456

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 14, 2008
- Submitted: December 22, 2008
- Operation: Air carrier
- Aircraft: [N228UA](https://openairdocs.org/aircraft/N228UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30556
- Aircraft time: 24,722 hours, 3,182 cycles
- Engine: Pwa PW40903
- Engine time: 40,720 hours, 5,902 cycles
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Fan
- Condition: Vibration
- Location: Lt Engine
- Part time: 40,720 hours, 5,902 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2008111301456

## Discrepancy

LEFT ENGINE HAS PRONOUNCED VIBRATION AT 76 PERCENT N2 ABOVE 2.0.  *S/D*  LUBED FAN BLADES AND TRIM BALANCED.  VIBRATION IS NOW WITHIN LIMITS.

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