# SDR 95ZZZX3270

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 12, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N8317Y](https://openairdocs.org/aircraft/N8317Y), registered now
- Make and model: Piper PA-32-301T
- Registry model: [Piper PA-32-301T](https://openairdocs.org/model/piper-pa-32-301t) (OpenAirDocs)
- Aircraft serial: 328124005
- Engine: Lyc TIO540S1AD
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Valve Guide
- Condition: Excess Wear
- Location: Exhaust
- Part time: 873 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95ZZZX3270

## Discrepancy

C/W INSPECTION ITEM NR 9.  REMOVAL OF ROCKER BOX COVERS EA400 HOURS AND FOUND EXCESSIVE EXHAUST DEPOSITS ON AND AROUND VALVE SPRINGS.  C/W LYC SB 388B.  EXHAUST VALVE GUIDE WEAR TO BE VERY EXCESSIVE .050 INCH PLUS ON FIVE OF THE SIX CYLINDERS, 837.00 HOURS SINCE NEW.  SUBMITTER SUGGESTS VALVE FAILURE WAS IMMINENT WHICH COULD CAUSE TOTAL LOSS OF POWER.

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