# SDR 97ZZZX3895

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 19, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N138PB](https://openairdocs.org/aircraft/N138PB), registered now
- Make and model: Beech 58P
- Registry model: [Beech 58P](https://openairdocs.org/model/beech-58p) (OpenAirDocs)
- Aircraft serial: TJ273
- Engine: Cont TSIO520*
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Part number: 654652A1
- Condition: Scored
- Location: Nr 2
- Part time: 20 hours
- 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/97ZZZX3895

## Discrepancy

DURING COMPLETION OF CONTINENTAL CRITICAL SB CSB 97-10A, FOUND NR 2 CYLINDER SEVERELY SCORED DURING A BORESCOPE INSPECTION.  DAMAGE COVERS 50 PERCENT OF TOTAL CYLINDER WALL AND IS BEYOND PISTON PIN WEAR AREA.  HIGH AMOUNT OF ALUMINUM SHAVINGS FOUND IN OIL FILTER.  AD 97-15-01 DOES NOT APPLY TO THIS ENGINE, BUT SAME CYLINDER COATING PROCESS IS USED ON I0-520 CYLINDERS.  THIS WAS A NEW CYLINDER FROM CONTINENTAL.  RECOMMEND AD REVISION.

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