# SDR 8PCR20151027001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 8, 2015
- Submitted: October 27, 2015
- Operation: Air carrier
- Filed by: [Pinnacle Aircraft Engines LLC, repair station 8PCR980B](https://openairdocs.org/faa-repair-station/8PCR980B/pinnacle-aircraft-engines-llc.md) (OpenAirDocs)
- Aircraft: [N161TA](https://openairdocs.org/aircraft/N161TA), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: 402C0070
- Engine: Cont TSIO520VB
- Engine time: 1,533 hours
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Nut
- Part number: 652541
- Condition: Fractured
- Location: Engine
- Part time: 1,533 hours, 1,533 cycles
- 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/8PCR20151027001

## Discrepancy

DURING ROUTINE INSPECTION, TWO THROUGH BOLT NUTS, TWELVE POINT PN 652541, WERE FOUND FRACTURED & LAYING IN THE BOTTOM OF THE ENG COWLING.  THE ENG HAS BEEN REMOVED TO BE DISASSEMBLED, INSPECTED & OVERHAULED.  THE NUTS WERE RETURNED TO THE ENG MFG FOR FURTHER EXAMINATION.

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