# SDR DXTA2025011601963

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 14, 2025
- Submitted: January 16, 2025
- Operation: Air carrier
- Aircraft: [N535QS](https://openairdocs.org/aircraft/N535QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 680A0078
- Aircraft time: 8,424 hours, 5,563 cycles
- Engine: Pwc PW545B
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Seal
- Part number: A5437
- Condition: Defective
- Location: Valve
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2025011601963

## Discrepancy

ON CLOMB OUT AT 7-8K FT, A BURNING SMELL STARTED . THE ENTIRE FLIGHT THE BURNING SMELL CAME IN STRONG WAVES. THE STRONGEST WAS DURING THE DECENT OUT OF 18K FT AND BELOW .   REPLACED ENGINE HP VALVE SEALS. OPS CHECK GOOD. IAW CE-680A AMM 36-10-05

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