# SDR CA150513007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 13, 2015
- Submitted: August 5, 2015
- Operation: General aviation
- Make and model: Cessna 172M
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (OpenAirDocs)
- Aircraft time: 5,327 hours
- Engine: Lyc O360A3A
- Propeller: Hartzl HCC2YK1
- System (JASC): [7110 · Engine Cowling System](https://openairdocs.org/jasc/7110)
- Part: Stud
- Part number: S111535
- Condition: Missing
- Location: Cowling
- Stage of operation: NR
- How discovered: O
- Nature of condition: D
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA150513007

## Discrepancy

(CAN) COWL STUDS KEEP DISAPPEARING FROM THE ACFT IN FLIGHT DUE TO VIBRATION, SEEMS LIKE A BAD DESIGN.

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