# SDR SWAA991740

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 19, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N388SW](https://openairdocs.org/aircraft/N388SW), registered now
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 26591
- System (JASC): [2731 · Elevator Tab Control System](https://openairdocs.org/jasc/2731)
- Part: Bushing
- Part number: BACB28AM06B
- Condition: Worn
- Location: Elevator Tab
- Stage of operation: CL
- Nature of condition: E
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA991740

## Discrepancy

AIR TURNBACK, AIRFRAME VIBRATION DURING CLIMB.  VIBRATION GREATER AT HIGHER SPEEDS.  REMOVED AND REPLACED RT ELEVATOR OUTBOARD TAB HINGE BUSHINGS AND LT ELEVATOR INBOARD TAB HINGE BUSHINGS PER MM.

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