# SDR SWAA021691

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 28, 2002
- Submitted: July 30, 2002
- Operation: Air carrier
- Aircraft: N743SW
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29279
- Aircraft time: 12,987 hours, 7,912 cycles
- System (JASC): [5520 · Elevator Structure](https://openairdocs.org/jasc/5520)
- Part: Tab
- Part number: 183A8100
- Condition: Vibration
- Location: Both Elevators
- Stage of operation: CR
- Nature of condition: E
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA021691

## Discrepancy

DURING CRUISE NOTICED A VERY HIGH FREQUENCY VIBRATION, COULD BE FELT IN ALL CONTROLS AS WELL AS ALL SURFACES IN COCKPIT.  REMOVED AND REPLACED BOTH ELEVATOR TRIM TABS PER MM.

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