# SDR ZB0R20070004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 15, 2007
- Submitted: October 17, 2007
- Operation: General aviation
- Aircraft: [N41331](https://openairdocs.org/aircraft/N41331), registered now
- Make and model: Piper PA-28R-200
- Registry model: [Piper PA-28R-200](https://openairdocs.org/model/piper-pa-28r-200) (OpenAirDocs)
- Aircraft serial: 28R7435169
- Aircraft time: 6,585 hours
- Engine: Lyc IO360A1A
- Engine time: 5,706 hours
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Cam
- Part number: LW18840
- Condition: Worn
- Location: Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: R
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ZB0R20070004

## Discrepancy

ON CLIMB-OUT, PILOT NOTICED LOW POWER. RETURNED TO AIRPORT. MAINTENANCE INSPECTION REVEALED BELOW MINIMUM VALVE TRAVELS FOR ALL INTAKE VALVES. REMOVED NR 1 CYLINDER.  FOUND CAM LOBES SEVERELY WORN AND TAPPETS CORRODED AND WORN IN A CONCAVE MANNER.  ENGINE REPAIRED BY SERVICE CENTER.  REINSTALLED ON ACFT.  ALL SYSTEMS OPS CK NORMAL.

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