# SDR CALA2023042101189

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 20, 2023
- Submitted: April 21, 2023
- Operation: Air carrier
- Aircraft: [N839UA](https://openairdocs.org/aircraft/N839UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 1507
- Aircraft time: 66,330 hours, 29,227 cycles
- System (JASC): [2900 · Hydraulic Power System](https://openairdocs.org/jasc/2900)
- Part: O-Ring
- Part number: NA
- Condition: Cut
- Location: Wheel Well
- Stage of operation: DE
- How discovered: O
- Nature of condition: J, K
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023042101189

## Discrepancy

CREW REPORTED ECAM MSGS  HYD B SYS LO PR AND HYD B RSVR LO LEVEL HYD PAGE SHOWING LOW LEVEL ON BLUE SYS. REFER TO L/P 4377610. WORK HAS BEEN COMPLIED. FOUND O-RING IN PRESSURE SWITCH ABOVE MANIFOLD BEHIND LEFT GEAR DOOR HANDLE PANEL LEAKING HYDRAULIC FLUID. REPLACED O-RING AND INNSTALLED PRESSURE SWITCH IN REFERENCE WITH AMM 29-12-17-400-001A. OPS CHECK PASSED NO LEAK NOTED AT THIS TIME. HYDRALIC SERVICED.

---
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.