# SDR R2J2001F00000

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 23, 2001
- Submitted: June 26, 2001
- Operation: Air carrier
- Aircraft: N13FS
- Make and model: Piper PA-31-350
- Registry model: [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350) (OpenAirDocs)
- Aircraft serial: 318352024
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Torque Link
- Part number: CH20261
- Part serial: FAAPMA
- Condition: Corroded
- Location: Mlg
- 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/R2J2001F00000

## Discrepancy

WHILE PERFORMING LANDING GEAR CHECKLIST ITEM ON ANNUAL INSPECTION FOUND BUBBLES IN PAINT ON LANDING GEAR TORQUE LINKS, ADJACENT TO LANDING GEAR SQUAT SWITCH MOUNTING HOLE.  FOUND SEVERE EXFOLIATION CORROSION UNDER PAINT:  STC HOLDER CONTACTED AND LINKS WERE REPLACED WITH NEW FAA-PMA FACTS.  STEEL SWITCH IS MOUNTED ON ALUMINUM LINK AND IS LOCATED IN ENGINE EXHAUST STREAM.  THIS AREA NEEDS EXTRA CLOSE INSPECTION- LINK FAILURE COULD CAUSE LOSS OF CONTROL ON LANDING.

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