# SDR CALA2026101620404

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 14, 2026
- Submitted: October 16, 2026
- Operation: Air carrier
- Aircraft: [N837UA](https://openairdocs.org/aircraft/N837UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 1474
- Aircraft time: 72,218 hours, 32,654 cycles
- Engine: Iae V2522A5
- Engine time: 18,651 hours, 9,726 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 3031863001
- Part serial: MX761349
- Condition: Leaking
- Location: Zone 400
- Part time: 29,440 hours, 16,628 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026101620404

## Discrepancy

HYD G ENG 1 PUMP LO PR, HYD G SYS LO PR, GREEN SYS DEPLETED SDR INFO ADDED FOUND AN ACTIVE LEAK WITH HYD PRESSURE OFF ON LINE AT THE TOP OF NR 1 ENGINE OTBD SIDE. JUST BEHIND THE PYLON INTERFACE BRACKET.  REPLACED DAMAGED PYLON HYDRAULIC LINE ON #1 ENGINE REF AMM 20-23-11. CHANGED ALL HYDRAULIC FILTERS AND DRAINED AND FLUSHED GREEN HYD SYSTEM REF 29-00-00-280-006-A AND REMOVED AND REPLACED ENGINE #1 EDP REF AMM 29-11-00. OPS AND LEAK CHECK OF GREEN HYD SYSTEM GOOD AT THIS TIME.

---
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.