# SDR UALA2011072103703

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2011
- Submitted: August 8, 2011
- Operation: Air carrier
- Aircraft: [N544UA](https://openairdocs.org/aircraft/N544UA), registered now
- Make and model: Boeing 757-21B
- Registry model: [Boeing 757-21B](https://openairdocs.org/model/boeing-757-21b) (OpenAirDocs)
- Aircraft serial: 25322
- Aircraft time: 74,149 hours, 21,374 cycles
- Engine: Pwa PW2037
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Vibration
- Location: Nr 2
- Stage of operation: NR
- 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/UALA2011072103703

## Discrepancy

DUE TO NR 2 ENGINE VIBRATIONS FELT BY CREW.   PRIOR TO HIGH POWER RUN,   REPLACED MAIN OIL FILTER, NO DEFECTS FOUND, OIL TANK SERVICED TO FULL.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.