# SDR CALA2023103003218

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 27, 2023
- Submitted: October 30, 2023
- Operation: Air carrier
- Aircraft: [N489UA](https://openairdocs.org/aircraft/N489UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1702
- Aircraft time: 64,422 hours, 28,303 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Switch
- Part number: D90ST2004000
- Part serial: 10391
- Condition: Inoperative
- Location: Grn Hyd Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023103003218

## Discrepancy

IN FLIGHT GREEN HYD SYS QTY DROPPED LOWER THAN NORM. APPROX 1/4 INCH ABOVE AMBER BOX. UPLOADING PICTURES R/R GREEN HYDRAULIC LOW LEVEL SWITCH IAW AMM 29-11-41-400-003-A. OPS AND LEAK CHECK GOOD. VERIFIED NO LEAKS IN AIRCRAFT, PERFORMED ENGINE IDLE RUN. FLUID LEVEL REMAINED FULL.

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