# SDR CALA2026042715734

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 2026
- Submitted: April 27, 2026
- Operation: Air carrier
- Aircraft: [N439UA](https://openairdocs.org/aircraft/N439UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 683
- Aircraft time: 84,718 hours, 34,858 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Hydraulic Line
- Condition: Leaking
- Location: Hyd System
- Stage of operation: DE
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026042715734

## Discrepancy

*EMERGENCY*  GRN HYD. SYS QTY. READING 0 .  FOUND NUM 1 ENG . PYLON DRAINING HYD FLUID CONSTANTLY. INFO UPDATE. LEAK FOUND AT THIS GROMMET(DESCRIPTION) FOCUSED ON SMALLER OF THE TWO LARGE LINES. INFO UPDATE. LEAK FOUND AT THIS GROMMET(DESCRIPTION) FOCUSED ON SMALLER OF THE TWO LARGE LINES. INFO UPDATE. LEAK FOUND AT THIS GROMMET(DESCRIPTION) FOCUSED ON SMALLER OF THE TWO LARGE LINES. INFO UPDATE. LEAK FOUND AT THIS GROMMET(DESCRIPTION) FOCUSED ON SMALLER OF THE TWO LARGE LINES. CONTINUED REMOVAL OF HYDRAULIC PRESSURE LINE, REF. AMM 29-11-49-000-A. INSTALLED COUPLING NUT OF THE PRESSURE PIPE (8) AND TORQUED PER AMM. INSTALLED NEW BUSHINGS REF. EA 2916-01052. AND INSTALLED PRESSURE PIPE BRACKETS. SERVICED GREEN SYSTEM HYD TO THE BOTTOM OF THE SERVICE ARC FOR LEAK CHECKS IAW AMM 12-13-29 FINISHED INSTALL OF GREEN SYSTEM PRESSURE PIPE PER AMM 29-11-49-400-011-A. INSTALLED ALL REMANING BUSHINGS AND BRACKETS. PERFORMED OPS CHECK OF GREEN HYDRAULICS SYSTEM AND THRUST REVERSER. OPS CHECK GOOD. LEAK CHECK GOOD. SERVICED HYDRAULICS TO FULL

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