# SDR ASAA2015052011802

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2015
- Submitted: May 22, 2015
- Operation: Air carrier
- Aircraft: [N581AS](https://openairdocs.org/aircraft/N581AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35188
- Aircraft time: 30,978 hours, 9,440 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7220 · Turbine Engine Air Inlet Section](https://openairdocs.org/jasc/7220)
- Part: Blade
- Part number: 3400018160
- Condition: Worn
- Location: Nr 2 Engine Fan
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015052011802

## Discrepancy

NR 2 ENGINE TREND DATA SHOWS A SUDDEN INCREASE IN LOW PRESSURE ROTOR VIBRATION LEVELS.  DATA SCATTER INDICATES FAN LUBE REQUIRED.  ACFT GROUNDED. PERFORMED NR 2 ENGINE FAN LUBE REF TASKCARD 78472002 AND ALSO TAST 7 VIB SURVEY REF AMM 71-00-00. OPS CHECK GOOD OF ENGINE VIB.  R & R 8 PLATFORM ASSYS DUE TO WEAR AND ALSO 1 SPACER ASSY DUE TO WEAR REF TASK 78472002. R & R 24 SHIM ASSYS DUE TO WEAR REF TASK 78472002.

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