# SDR HYIA20150220002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 19, 2015
- Submitted: February 20, 2015
- Operation: Air carrier
- Aircraft: [N247GS](https://openairdocs.org/aircraft/N247GS), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: 402C0637
- Aircraft time: 25,536 hours, 20,826 cycles
- Engine: Cont TSIO520VB
- Engine time: 1,007 hours
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Nut
- Part number: 652541
- Condition: Cracked
- Location: Engine
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HYIA20150220002

## Discrepancy

DURING INSPECTION FOUND ENG THROUGH BOLT NUT PN 652541 CRACKED ON THE NR 3 CYLINDER, CAUSING THROUGH BOLT TO BACK OUT.

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