# SDR DALA2025042303180

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 21, 2025
- Submitted: April 23, 2025
- Operation: Air carrier
- Aircraft: [N503DZ](https://openairdocs.org/aircraft/N503DZ), 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: 10974
- Aircraft time: 12,409 hours, 2,934 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Ecs
- Condition: Contaminated
- Location: Zone 100
- Stage of operation: AP
- 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/DALA2025042303180

## Discrepancy

SHIP 5003 ON APPROACH WE HAD A STRONG SMELL IN COCKPPIT & CABIN. POSSIBLE " POSSIBLE DIRTY SOCK SMELL " EVENT. LASTED ABOUT 2 MIN THEN DIAPATED PRIOR TO LANDING. CORRECTIVE ACTION: PREFORMED LVL B OF THE CONTONTAMINATION OF THE ECS AS PER A321 AMM 21-00-00-615-803-A, RECIRT FILTER DONT REQUIRE CHANGE DUE TO NO SMELL AFTER 20 MIN (7240032)

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