# SDR GTIA2025032738823

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2025
- Submitted: March 27, 2025
- Operation: Air carrier
- Aircraft: [N728NK](https://openairdocs.org/aircraft/N728NK), 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: 11881
- Aircraft time: 2,441 hours, 1,004 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: A/C Pack
- Condition: Odor
- Location: Nr 1
- 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/GTIA2025032738823

## Discrepancy

ON DESCENT FOR LANDING AT @3000 FEET SMELL TO FLIGHT DECK,PERFORMED PROCEDURE,ISOLATED TO PACK #1 -ACCOMPLISHED EO 7100-2301 PW1100- TROUBLESHOOT STEPS 3-9 ACCOMPLISHED TI 2100-2002-NEO ODOR EVENT AND SOURCE IDENTIFICATION STEPS 1-24 & 26-31

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