# SDR FBVXA1

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 6, 2004
- Submitted: May 6, 2004
- Operation: General aviation
- Aircraft: N627L
- Make and model: Cessna 550
- Registry model: [Cessna 550](https://openairdocs.org/model/cessna-550) (OpenAirDocs)
- Aircraft serial: 5500843
- Aircraft time: 1,848 hours, 1,733 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Line
- Condition: Chafed
- Location: Outflow Valve
- Part time: 1,848 hours, 1,733 cycles
- Stage of operation: NR
- How discovered: 9
- Nature of condition: S
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FBVXA1

## Discrepancy

THE ELEVATOR CONTROL CABLE CHAFED THROUGH OUTFLOW VALVE VACUUM EJECTOR LINE CAUSING A (BUMP) IN THE PRESSURIZATION.  ALSO CAUSED ERRATIC PRESSURIZATION IN FLIGHT.  REPLACED THE LINE AND OPS CHECKED GOOD.

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