# SDR WVBA01100

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 24, 2000
- Submitted: July 31, 2000
- Operation: General aviation
- Aircraft: [N300ED](https://openairdocs.org/aircraft/N300ED), registered now
- Make and model: Piper PA-31-350
- Registry model: [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350) (OpenAirDocs)
- Aircraft serial: 317852008
- Engine: Lyc TIO540J2BD
- System (JASC): [8510 · Reciprocating Engine Front Section](https://openairdocs.org/jasc/8510)
- Part: Camshaft
- Part number: LW19340
- Condition: Damaged
- Location: Nr 4/Nr 6 Intake
- 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/WVBA01100

## Discrepancy

DURING INSPECTION, METAL CONTAMINATION WAS DISCOVERED IN THE SPIN ON OIL FILTER.  FURTHER INVESTIGATION FOUND NR 4 AND NR 6 CYLINDER INTAKE VALVE LIFT IN EXCESS.  NR 6 CYLINDER REMOVED AND THE INTAKE LOBE OF  NR 4/NR 6 CYLINDERS ON THE CAMSHAFT TO HAVE SEVERE WEAR AS WELL AS FACES OF THE TAPPETS.  (X)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.