# SDR AALA20151029006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 29, 2015
- Submitted: October 30, 2015
- Operation: Air carrier
- Aircraft: N188AN
- Make and model: Boeing 757223
- Aircraft serial: 32382
- Aircraft time: 52,546 hours, 13,069 cycles
- Engine: Rroyce RB211535E4B3
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Pad
- Condition: Missing
- Location: Rt Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20151029006

## Discrepancy

RIGHT ENG VIBRATION, 3.1 TO 3.2, DURING CRUISE.  THE FLIGHT DECLARED AN EMER & RETURNED WITHOUT FURTHER INCIDENT.  ACFT WAS TAKEN OUT OF SERVICE. INSTALLED RT ENG CHOCKING PADS ON LP FAN BLADES, NR 4 & 16 IAW MCM 72-94-01.  ACCOMPLISHED FAN TRIM BALANCE IAW MCM 71-95-25.  ALL INDICATIONS WERE NORMAL.

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