# SDR CALA2022042901106

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2022
- Submitted: April 29, 2022
- Operation: Air carrier
- Aircraft: [N820UA](https://openairdocs.org/aircraft/N820UA), registered now
- Make and model: Airbus A300*
- Aircraft serial: 898
- Aircraft time: 72,140 hours, 30,754 cycles
- System (JASC): [2932 · Hydraulic Pressure Sensor](https://openairdocs.org/jasc/2932)
- Part: None
- Part number: NA
- Part serial: NAN
- Condition: None
- Location: Y Reservoir
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2022042901106

## Discrepancy

ECAM CAUTION MESSAGE - Y RSVR LO LVL MESSAGE INOP - HYD LEAK APPEARS TO BE AT THE PTU MANIFOLD. NEED MORE TIME TO FOUND 2WAY HYD VALVE DRUM SEAL ITEM 100 IPC 29-13-15-02A LEAKING TROUBLESHOOT. AND O-RING 40 FOR CHECK VALVE 10 . REPLACED THE O-RINGS AND BONNETS ON THE PTU SOLENOID VALVE REF AMM 29-23-51-400-002-A AND LWR CK VALVE O-RING REF IPC29-13-15-02A ITM 40. ADD EMP:U384621

---
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.