# SDR PNSA010804

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 21, 2001
- Submitted: September 7, 2001
- Operation: Air carrier
- Aircraft: [N8470Y](https://openairdocs.org/aircraft/N8470Y), registered now
- Make and model: Piper PA-32-301
- Registry model: [Piper PA-32-301](https://openairdocs.org/model/piper-pa-32-301) (OpenAirDocs)
- Aircraft serial: 328206012
- Aircraft time: 7,552 hours
- Engine: Lyc IO540K1G5
- Engine time: 1,340 hours
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Rocker Boss
- Condition: Cracked
- Location: Nr 2 Cylinder
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/PNSA010804

## Discrepancy

DURING ENGINE START UNUSUAL SOUND WAS HEARD.  MAINTENANCE CONTACTED AND FOUND NR 2 CYLINDER ROCKER ARM SHAFT BOSS CRACKED.  CYLINDER REPLACED AND ENGINE OP CHECK GOOD.

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