# SDR YENA2026010200004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 1, 2026
- Submitted: January 2, 2026
- Operation: Air carrier
- Aircraft: [N2193J](https://openairdocs.org/aircraft/N2193J), registered now
- Make and model: Airbus A321-271NX
- Registry model: [Airbus A321-271NX](https://openairdocs.org/model/airbus-s-a-s-a321-271nx) (OpenAirDocs)
- Aircraft serial: 12274
- Aircraft time: 4,289 hours, 800 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Warning Message
- Part number: 1312B000002
- Part serial: 131225963
- Condition: Illuminated
- Location: Nr 1 A/C Pack
- Part time: 4,321 hours, 803 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2026010200004

## Discrepancy

FLT 1734 SFO-BOS (ETOPS).   PACK 1 REG FAULT (ECAM INDICATION 3) ON BLEED PAGE 4) PACK OUTLET TEMPERATURE).; (RESOLVED ON W/O: 1464867 TASKCARD: NR-00002 ) REMOVED AND REPLACED  BYPASS VALVE  PER AMM 21-61-00, MX -4 UPDATED MDDR CLEAR.

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