# SDR AALA20050311

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 8, 2005
- Submitted: May 10, 2005
- Operation: Air carrier
- Aircraft: [N191AN](https://openairdocs.org/aircraft/N191AN), registered now
- Make and model: Boeing 757223
- Aircraft serial: 32385
- Engine: Rroyce RB211535E4B3
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Malfunctioned
- Location: Nr 1
- Stage of operation: CL
- 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/AALA20050311

## Discrepancy

LAX - IMMEDIATELY AFTER TAKEOFF NUMBER ONE ENGINE VIBRATIONS INTO YELLOW BAND AND WAS VERY LOUD.  WHEN POWER PULLED BACK VIBRATIONS REDUCED.  REPLACED NUMBER 1 ENGINE.  SYSTEM GROUND CHECKED NORMAL OPERATION.

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