# SDR SWIA2020091652557

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 2020
- Submitted: September 16, 2020
- Operation: Air carrier
- Aircraft: [N916EV](https://openairdocs.org/aircraft/N916EV), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7757
- Aircraft time: 33,518 hours, 33,231 cycles
- System (JASC): [2100 · Air Conditioning System](https://openairdocs.org/jasc/2100)
- Part: Check Valve
- Part number: AE74341Z
- Condition: Inoperative
- Location: Bs 621
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA2020091652557

## Discrepancy

FS 621.00 PRESSURE BULKHEAD RT FLIGHT COMPARTMENT DISTRIBUTION CHECK VALVE, ONE FLAPPER ON CHECK VALVE WILL NOT CLOSE FULLY.  C-CHECK RO 9/12/2020.  REMOVED AND REPLACED THE RT PASSENGER COMPARTMENT PRESSURE BULKHEAD CHECK VALVE, REF CRJ200 AMM.  LEAK CHECKS GOOD.

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