# SDR 9610073204

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 4, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N304US](https://openairdocs.org/aircraft/N304US), registered now
- Make and model: Airbus A320-211
- Registry model: [Airbus A320-211](https://openairdocs.org/model/airbus-industrie-a320-211) (OpenAirDocs)
- Aircraft serial: 40
- Engine: Cfmint CFM565A1
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Vibration
- Location: Nr 1
- Stage of operation: CL
- Nature of condition: E, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9610073204

## Discrepancy

DURING CLIMB AFTER FLAP RETRACTION, AN AIRCRAFT VIBRATION WHICH SEEMED TO FOLLOW NR 1 ENGINE RPM WAS FELT.  AIRCRAFT RETURNED TO MSP.  GROUND MAINTENANCE INSPECTION OF AIRFRAME REVEALED NO DISCREPANCIES.  NR 1 ENGINE WAS GROUND RUN AND FAN TRIM BALANCE WAS PERFORMED.  AIRCRAFT RETURNED TO SERVICE.

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