# SDR 2006FA0000791

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 8, 2006
- Submitted: August 16, 2006
- Operation: General aviation
- Aircraft: [N9520Y](https://openairdocs.org/aircraft/N9520Y), registered now
- Make and model: Beech P35
- Registry model: [Beech P35](https://openairdocs.org/model/beech-p35) (OpenAirDocs)
- Aircraft serial: D7016
- Engine: Cont IO470*
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Hinge
- Part number: 35660033
- Condition: Cracked
- Location: Ruddervator
- 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/2006FA0000791

## Discrepancy

FAIRLEADS IN RUDDERVATOR TRIM TAB CNTRL CABLE SYS ARE CRACKING UPON INSTALLATION, POSSIBLY DURING FLIGHT.  BUTTON-HEAD RIVETS ARE INTERFERING WITH INSTALLATION, CAUSING CRACKS TO FORM IN (TANG) OF FAIRLEADS.  CABLE TENSION USED IN RUDDERVATOR TRIM TAB CABLES IS A FACTOR IN CRACKING.  A LOOSENING OF RUDDERVATOR TRIM TAB CNTRL CABLES IS NECESSARY DURING INSTALL, FOLLOWED BY RIGGING TO VERIFY PROPER CABLE TENSION.  A SMALL AMOUNT OF FILING ON BACK OF (TANG) OF FAIRLEAD FOR CLOSE TOLERANCE OF RIVETS THAT HOLD NUTPLATE FOR MOUNTING OF FAIRLEAD.  EITHER A NEW MATERIAL NEEDS TO BE EXPLORED FOR MAKING  FAIRLEADS MORE DURABLE, OR A MAINT NOTE NEEDS TO BE MADE ON PROPER INSTALLATION OF FAIRLEADS TO PREVENT CRACKING.  (K)

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