# SDR 2016FA0000075

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 9, 2016
- Submitted: February 9, 2016
- Operation: General aviation
- Aircraft: [N59906](https://openairdocs.org/aircraft/N59906), registered now
- Make and model: Piper PA-31-350
- Registry model: [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350) (OpenAirDocs)
- Aircraft serial: 317552027
- System (JASC): [2730 · Elevator Control System](https://openairdocs.org/jasc/2730)
- Part: Pulley
- Condition: Failed
- Location: Elevator
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2016FA0000075

## Discrepancy

PILOT REPORTED ELEVATOR TRIM VERY STIFF AND STICKING.  UPON INSPECTION OF ELEVATOR TRIM CONTROL CABLES, FOUND PULLEY, PN MS24566-1B AT BS 244 HAD BEEN APPROXIMATELY 90 PERCENT DESTROYED BY ELEVATOR TRIM CABLE TURNBUCKLE.  WHEN ELEVATOR TRIM OPERATED, TURNBUCKLE APPEARED TO HAVE BEEN TRAVELING THROUGH PULLEY AND KEEPER.  WHEN FOUND TRIM CABLE WAS RIDDING ON PULLEY BOLT BUSHING.

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