# SDR CALA2018120202447

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 26, 2018
- Submitted: December 2, 2018
- Operation: Air carrier
- Aircraft: N410UA
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 463
- Aircraft time: 80,619 hours, 30,692 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Check Valve
- Part number: ZCV6412
- Condition: Broken
- Location: Hydraulic Sys
- Stage of operation: TX
- How discovered: O
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2018120202447

## Discrepancy

Y RSVR LO LVL DISPLAYED ON UPPER ECAM SCREEN. HYD FOUND CHECK VALVE ON YELLOW SYSTEM MANIFOLD TO BE BROKEN. REPLACING CHECK VALVE AND THEN WILL LEAK CHECK.

---
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.