# SDR ASAA2012102093166

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 20, 2012
- Submitted: October 24, 2012
- Operation: Air carrier
- Aircraft: [N531AS](https://openairdocs.org/aircraft/N531AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35199
- Aircraft time: 9,613 hours, 3,034 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7220 · Turbine Engine Air Inlet Section](https://openairdocs.org/jasc/7220)
- Part: Screw
- Part number: 9111M35P14
- Condition: Vibration
- Location: Nr 2 Engine
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2012102093166

## Discrepancy

VIBRATION ANOMALY ON NR 2 ENGINE, ALL PARAMETERS ARE WITHIN LIMITS.  ACCOMPLISHED TSR WEIGHTS ON ENGINE.  MATCHED THE AAVM LOC. 24-P12 & LOC 26-P12 PERFORMED ONE PLANE BALANCE & CHANGED CONFIG TO NEW SOLUTION - LOC 24 FROM P12 TO P14, 26 FROM P12 TO P14, LOC 29 FROM P14 TO P12, & 34 FROM P14 TO P12.  VIBRATION LEVELS RETURNING TO NORMAL AFTER INCORPORATION OF BALANCE SOLUTION.

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