# SDR 2011F00044

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 18, 2011
- Submitted: February 18, 2011
- Operation: General aviation
- Aircraft: [N11](https://openairdocs.org/aircraft/N11), registered now
- Make and model: Beech C90
- Registry model: [Beech C90](https://openairdocs.org/model/beech-c90) (OpenAirDocs)
- Aircraft serial: LJ1964
- Aircraft time: 319 hours, 380 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Channel
- Part number: 5044003121
- Condition: Chafed
- Location: Elevator
- Part time: 319 hours, 380 cycles
- Stage of operation: TO
- How discovered: O
- Nature of condition: F
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2011F00044

## Discrepancy

ELEVATOR MOVEMENT TO CERTAIN DISTANCE CAUSES POPPING SOUND IN EMPENNAGE.  INVESTIGATION RESULTED IN FINDING THE ELEVATOR TRIM MOTOR TURNBUCKLE UPPER BOLT & NUT RUBBING AGAIN THE ELEVATOR RIGGING CHANNEL, CAUSING CHAFING.

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