# SDR AALA2018091219017

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 2018
- Submitted: September 14, 2018
- Operation: Air carrier
- Aircraft: [N521UW](https://openairdocs.org/aircraft/N521UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 3944
- Aircraft time: 33,556 hours, 12,028 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: A/C Pack
- Condition: Odor
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA2018091219017

## Discrepancy

CABIN ODOR, THE AIRCRAFT WAS GROUNDED. TROUBLESHOT CABIN AIR QUALITY IAW TASK CARD 26L00021001.  SOURCE OF CABIN ODOR FOUND TO BE AIR CONDITIONING PACKS.  ACCOMPLISHED MCM 21001, 21002, AND 21004, ALL CHECKED NORMAL,  NO ODOR DETECTED.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.