# SDR 97UAL900773

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 12, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N786UA](https://openairdocs.org/aircraft/N786UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26938
- Engine: Pwa PW4084
- System (JASC): [5101 · Aircraft Structures](https://openairdocs.org/jasc/5101)
- Part: Airframe
- Condition: Vibration
- Location: Mlg Area
- Stage of operation: CL
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97UAL900773

## Discrepancy

HEAVY AIRFRAME VIBRATION.  NOISE IS INTERMITTENT AND NOT SPEED RELATED.  SOUND APPEARS TO COME FROM MAIN LANDING GEAR AREA.  AIRCRAFT RETURNED TO MIA.

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