# SDR 99ZZZX2320

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 1, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N3527U](https://openairdocs.org/aircraft/N3527U), 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: 317952141
- Engine: Lyc TIO540J2BD
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Camshaft
- Part number: LW19340
- Condition: Worn
- Location: Engine
- 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/99ZZZX2320

## Discrepancy

AT 100-HOUR INSPECTION, DISCOVERED FERROUS METAL CONTAMINATION IN FILTER ELEMENT.  PERFORMED VALVE CLEARANCE CHECK AND FOUND NR 5, NR 6 INTAKE LOBBS WITH EXCESSIVE CLELARANCE BASED ON A SIMILAR CIRCUMSTANCE.  IT WAS DECIDED TO REMOVE THE ENGINE FROM SERVICE FOR CAMSHAFT REPLACEMENT.

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