# SDR WRNA201504020004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 2015
- Submitted: April 2, 2015
- Operation: Air carrier
- Aircraft: [N902AR](https://openairdocs.org/aircraft/N902AR), registered now
- Make and model: Boeing 747428F
- Aircraft serial: 32870
- Engine: Ge CF680C2B5F
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Vibration
- Location: Nr 1
- Stage of operation: DE
- 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/WRNA201504020004

## Discrepancy

DURING DECENT THE NR 1 ENGINE, N2 VIBRATION PEAKED AT 4.5, 15,000 FEET, INDICATED AIRSPEED 300 KNOTS, FLIGHT IDLE POWER.

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