# SDR AU960620

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Cessna 182E
- Registry model: [Cessna 182E](https://openairdocs.org/model/cessna-182e) (OpenAirDocs)
- Engine: Cont O470R
- Propeller: Hartzl BHCC2YF1
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Piston Ring
- Condition: Wrong Part
- Location: R Engine Cylinde
- Stage of operation: IN
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU960620

## Discrepancy

(AUS) INCORRECT PISTON RING SETS FITTED TO ALL PISTONS - PNO 632932  PISTONS FITTED WHICH SHOULD HAVE RECTANGULAR TOP RINGS AS PER SB M91-4 - PISTONS WERE FITTED WITH TAPERED RINGS - DAMAGE TO PISTONS AND MINOR SCORING TO CYLINDERS - VALVE SEATS APPEAR TO BEINCORRECTLY CUT - 3 PISTON PINS HAVE LOOSE PLUGS - NO1 CYLINDER  HAS VERY DEEP SCORING FROM PREVIOUS HONING - UNAPPROVED PART - PERSONNEL/MAINTENANCE ERROR

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