# SDR 20010409CW016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 6, 2001
- Submitted: April 9, 2001
- Operation: General aviation
- Aircraft: [N441CA](https://openairdocs.org/aircraft/N441CA), registered now
- Make and model: Cessna 172R
- Registry model: [Cessna 172R](https://openairdocs.org/model/cessna-172r) (OpenAirDocs)
- Aircraft serial: 17280441
- Engine: Lyc IO360L2A
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Part number: L2744051A
- Condition: Cracked
- Location: Engine
- Part time: 2,010 hours
- Stage of operation: NR
- 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/20010409CW016

## Discrepancy

AIRCRAFT WAS 4 MILES FROM AIRPORT WHEN A LOUD BANG WAS HEARD AND THE ENGINE STARTED VIBRATING AND MISSING.  PILOT PULLED POWER BACK TO IDLE AND LANDED SAFELY AT AIRPORT.  INSPECTED ENGINE AND FOUND NR 3 ENGINE CYLINDER WITH A CRACK, HALF AROUND CYLINDER.  THIS CRACK STARTED AT THE 4TH FIN BACK FROM THE TOP SPARK PLUG HOLE AND PARRELLED THE FIN.  DUE TO FREQUENT USE ENGINE TBO IS 2200 HOURS.

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