# SDR DALA2025050803561

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 8, 2025
- Submitted: May 8, 2025
- Operation: Air carrier
- Aircraft: [N405DX](https://openairdocs.org/aircraft/N405DX), registered now
- Make and model: Airbus A330-941
- Registry model: [Airbus A330-941](https://openairdocs.org/model/airbus-a330-941) (OpenAirDocs)
- Aircraft serial: 1949
- Aircraft time: 22,193 hours, 2,560 cycles
- Engine: Rroyce RB211TRENT77
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Oil System
- Condition: Leaking
- Location: Zone 400
- Stage of operation: CL
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025050803561

## Discrepancy

SHIP 3405 -ATB- FLIGHT RETURNED TO ATL DUE TO DIRTY SOCK SMELL. CORRECTIVE ACTION: DRAINED AND RESERVICED BOTH LEFT AND RIGHT ENGINE OILS, PERFORMED TWO ENGINE PURGE RUNS, DECONTAMINATED DUCTS, AND CHANGED LEFT AND RIGHT OZONE CONVERTERS. NO SMELLS PRESENT. OK FOR SERVICE. (7127297)

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