# SDR GTIA2025121839208

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 16, 2025
- Submitted: December 19, 2025
- Operation: Air carrier
- Aircraft: [N664NK](https://openairdocs.org/aircraft/N664NK), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 7021
- Aircraft time: 31,700 hours, 14,100 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: A/C Pack
- Condition: Contaminated
- Location: Zone 100
- Stage of operation: DE
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GTIA2025121839208

## Discrepancy

FUME EVENT,  PACK NR 2 IN DESCENT, AROUND 5000,  MILD INTENSITY. SHUT PACK 2 OFF AND ODOR WENT AWAY. ODOR WAS THE SAME AS PACK NR 1, DEICING FLUID. DESCRIPTION OF ODOR/FUMES: PERSISTENT, DEICING ODOR. APPARENT CABIN SOURCE: CABIN AIR SUPPLY VENTS. FLIGHT DECK. NO VISIBLE SMOKE/HAZE. NO MEDICAL ATTENTION REQURIED.-REF LP 6025261-1, AND W.O 374605 FOR CORRECTIVE ACTION.

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