# SDR 2003FA0000701

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 2, 2003
- Submitted: July 15, 2003
- Operation: General aviation
- Aircraft: N2FJ
- Make and model: Piper PA-31T
- Registry model: [Piper PA-31T](https://openairdocs.org/model/piper-pa-31t) (OpenAirDocs)
- Aircraft serial: 31T7620050
- Engine: Pwa PT6A60A
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Torque Tube
- Condition: Corroded
- Location: Rudder
- Part time: 5,512 hours
- 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/2003FA0000701

## Discrepancy

FOUND RUDDER TORQUE TUBE WITH CORROSION ON TUBE AND SURROUNDING ALUMINUM RIB.  FOUND DURING INSPECTION IAW SB1105.  PROBABLE CAUSE IS DISSIMILAR METAL CORROSION.  CLOSERER INSPECTION DURING EVENT 1 INSPECTIONS.  REPAIRS REQUIRED REPLACEMENT OF THE TORQUE TUBE AND TWO RIBS.

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