# SDR 8304771

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2004
- Submitted: February 27, 2004
- Operation: Air carrier
- Aircraft: [N830CA](https://openairdocs.org/aircraft/N830CA), registered now
- Make and model: Beech 1900D
- Registry model: [Beech 1900D](https://openairdocs.org/model/beech-1900d) (OpenAirDocs)
- Aircraft serial: UE393
- Aircraft time: 6,168 hours, 8,478 cycles
- System (JASC): [2731 · Elevator Tab Control System](https://openairdocs.org/jasc/2731)
- Part: Gear
- Part number: S3280
- Condition: Slipped
- Location: Ele Tab Dial
- Part time: 6,168 hours, 8,478 cycles
- Component: Ele Tab Dial, Raythn
- Component part number: 5052453421
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/8304771

## Discrepancy

WHILE CHECKING ELEVATOR TRIM FOR FCD BE2703 DISCOVERED ELEVATOR TAB DIAL MECHANISM MOUNT ASSY HAD SLIPPED CAUSING THE TRIM INDEX MARK CALIBRATION TO CHANGE.  UPON FURTHER INSPECTION IT WAS DISCOVERED THAT THE SLIPPAGE WAS CAUSED BY A PRESSED ON GEAR IN THE ELEVATOR TAB DIAL MECHANISM MOUNT ASSY THAT HAD SLIPPED ON ITS SHAFT.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.