# SDR K11A2021051900049

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 2021
- Submitted: May 20, 2021
- Operation: Air carrier
- Aircraft: [N311GT](https://openairdocs.org/aircraft/N311GT), registered now
- Make and model: Boeing 737-4K5
- Registry model: [Boeing 737-4K5](https://openairdocs.org/model/boeing-737-4k5) (OpenAirDocs)
- Aircraft serial: 26316
- Aircraft time: 62,063 hours, 36,558 cycles
- System (JASC): [2731 · Elevator Tab Control System](https://openairdocs.org/jasc/2731)
- Part: Trim Tab
- Condition: Loose
- Location: Zone 300
- Stage of operation: CL
- How discovered: O
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/K11A2021051900049

## Discrepancy

ABNORMAL VIBRATION ON TAKEOFF

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