# SDR DALA2025080405829

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 3, 2025
- Submitted: August 4, 2025
- Operation: Air carrier
- Aircraft: [N505DZ](https://openairdocs.org/aircraft/N505DZ), 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: 10935
- Aircraft time: 12,401 hours, 3,008 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Ecs
- Condition: Contaminated
- Stage of operation: IN
- How discovered: V
- Nature of condition: G
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025080405829

## Discrepancy

AIRCRAFT 5005, FA REPORTED DIRTY SOCK SMELL ON DESCENT TO LAND FROM 18000' TO 10000'. CORRECTIVE ACTION: FOUND EVIDENCE OF OIL BEHIND NUM 2 SPINNER. REPLACED SEAL. RAN ENGINE. OPS CHK ALSO PERFORMED A321 NEO AMM 21-00-00-615-803-. DECONTAMINATION OF THE ECS & AMM 36-10-00-615-805-A. (LP 7221600)

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