# SDR AALA201703089009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 7, 2017
- Submitted: March 9, 2017
- Operation: Air carrier
- Aircraft: [N549UW](https://openairdocs.org/aircraft/N549UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4932
- Aircraft time: 19,183 hours, 6,987 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Duct
- Condition: Punctured
- Location: Cabin
- Stage of operation: AP
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201703089009

## Discrepancy

AIRCRAFT WAS GROUNDED. FLIGHT ATTENDANT NOTICED A STRONG ACIDIC ODOR IN CABIN FROM ROW 5 AND BACK AS AIRCRAFT APPROACHED GATE, BEFORE DOORS OPENED. MAINTENANCE FOUND A HOLE IN FORWARD CARGO Y-MIXER DUCT AND REPLACED Y-MIXER DUCT PER AMM 21-21-43 AND JOB CARD 26L00021001. SEE ALSO AALA201703089011.

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