# SDR YENA2021061800377

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 17, 2021
- Submitted: June 18, 2021
- Operation: Air carrier
- Aircraft: [N983JT](https://openairdocs.org/aircraft/N983JT), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 07739
- Aircraft time: 15,145 hours, 2,960 cycles
- System (JASC): [2930 · Hydraulic Indicating System](https://openairdocs.org/jasc/2930)
- Part: Switch
- Part number: D90ST2004000
- Part serial: 12216
- Condition: Failed
- Location: Low Level
- Part time: 15,143 hours, 2,959 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: B, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2021061800377

## Discrepancy

FLT 178, LAS-BOS. REF DEFCT 3125531 ITEM1 EMERGENCY LANDING GEAR FREE FALL EXTENSION OPERATED IN FLIGHT DUE TO GREEN HYDRAULIC FAULTS ; RESET + INSPECTED EMERGENCY FREE FALL SYSTEM IAW AMM 32-33-00-710-001-A STEP 4A RESET SUCCESSFUL OPS CHECK GOOD (EMERGENCY DECLARED)

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