# SDR 97ZZZX4625

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 2, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N7342K](https://openairdocs.org/aircraft/N7342K), registered now
- Make and model: Cessna R172K
- Registry model: [Cessna R172K](https://openairdocs.org/model/cessna-r172k) (OpenAirDocs)
- Aircraft serial: R1722060
- Engine: Cont IO360K
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Crankcase
- Condition: Fractured
- Location: Nr 2 Cyl Base
- Part time: 3,392 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/97ZZZX4625

## Discrepancy

LT CRANKCASE BROKE OFF AT THE TOP SIDE AT THE PERIMETER OF NR 2 CYLINDER BASE.  SUSPECT CAUSE, FAILURE OF FWD THROUGH-BOLT NUT OR THREADS OR POSSIBLE INTERNAL FLAW IN CRANKCASE HALF.

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