# SDR 20000720SH011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 8, 2000
- Submitted: July 20, 2000
- Operation: General aviation
- Aircraft: [N789EP](https://openairdocs.org/aircraft/N789EP), registered now
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Aircraft serial: 172S8135
- Engine: Lyc IO360L2A
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Plug
- Part number: LW11775
- Condition: Worn
- Location: All Cylinders
- Part time: 688 hours
- Component: Cylinder Assy, Lyc
- Component part number: LW12427
- 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/20000720SH011

## Discrepancy

PERFORMED LYC SI 1492B.  DURING THE PHASE 2 INSPECTION, OIL FILTER REMOVED AND CUT OPEN FOR INSPECTION.  AN EXCESSIVE AMOUNT OF ALUMINUM FLAKES WERE DISCOVERED.  ALL 4 CYLINDERS REMOVED ENOUGH TO INSPECT AND REPLACED 8 WORN PISTON PIN PLUGS WITH P/N 60828 PLUGS.  RE-INSTALLED CYLINDERS WITH NEW CYLINDER BASE SEALS, INTAKE GASKETS, PUSHROD SEALS AND VALVE COVER GASKETS.  PERFORMED OPERATIONAL CHECK, CHECKED SATISFACTORY.  (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.