# SDR RU3A20170721020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 21, 2017
- Submitted: July 25, 2017
- Operation: Air carrier
- Aircraft: [N76](https://openairdocs.org/aircraft/N76), registered now
- Make and model: Beech 300BEECH
- Aircraft serial: FF11
- Aircraft time: 15,218 hours, 7,911 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Filter
- Condition: Restricted
- Location: Safety Valve
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/RU3A20170721020

## Discrepancy

DUE TO A RESTRICTED SAFETY VALVE FILTER, PRESSURIZATION SYSTEM FAILED IN FLIGHT. SYSTEM PERFORMED WITHOUT FURTHER ISSUE AFTER FILTER WAS CLEANED. NO NOTED TREND

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