# SDR 97ZZZX2111

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 28, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N757CH
- Make and model: Cessna 152
- Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (OpenAirDocs)
- Aircraft serial: 15279629
- Engine: Lyc O235L2C
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Piston
- Condition: Burned
- Location: Nr 4 Cylinder
- Part time: 700 hours
- Stage of operation: CR
- Nature of condition: E, R, K
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX2111

## Discrepancy

PILOT EXPERIENCED RPM DROP, LOSS OF OIL PRESSURE, AND ROUGHNESS.  LANDED ON CITY STREET.  NO AIRCRAFT DAMAGE.  FOUND OIL APPARENTLY EXHAUSTED THROUGH CRANKCASE BREATHER.  NR 4 CYLINDER PISTON BURNED THROUGH AFT SIDE UNDER RINGS .3750 INCH HOLE.  NR 3 CYLINDER CONNECTING ROD BROKEN LOOSE AT END CAP.  PUNCTURED BOTTOM OF CRANKCASE.  NOTE:  APPROX 8 FLIGHT HOURS PREVIOUSLY, CYLINDER COMPRESSION CHECKS WERE ALL IN THE MID 70'S, OVER 80.

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