# SDR AALA202003139015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2020
- Submitted: March 13, 2020
- Operation: Air carrier
- Aircraft: [N176UW](https://openairdocs.org/aircraft/N176UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1499
- Aircraft time: 64,117 hours, 24,099 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Filter
- Condition: Dirty
- Location: Zone 100
- Stage of operation: TO
- 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/AALA202003139015

## Discrepancy

AIRCRAFT WAS GROUNDED: DIRTY SOCK SMELL ON TAKEOFF. RAN QRH ODOR PERSISTED AFTER RETURN TO FIELD. EMERGENCY DECLARED. C/W J/C 26L00021001 AND J/C 26L00021004. REPLACED AEVC FILTER IAW AMM 21-26-43.

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