# SDR 2025F00048

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 2025
- Submitted: February 21, 2025
- Operation: General aviation
- Aircraft: [N936QS](https://openairdocs.org/aircraft/N936QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 680A0365
- Aircraft time: 1,618 hours, 1,086 cycles
- Engine: Pwc PW306D1
- Engine time: 1,618 hours, 1,086 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Flange
- Condition: Chafed
- Location: Bypass Duct
- Part time: 1,618 hours, 1,086 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/2025F00048

## Discrepancy

RH ENGINE BYPASS DUCT FLANGE FRETTING.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.