# SDR DALA2025011300289

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 2, 2025
- Submitted: January 13, 2025
- Operation: Air carrier
- Aircraft: [N364DX](https://openairdocs.org/aircraft/N364DX), registered now
- Make and model: Airbus A321-213
- Registry model: [Airbus A321-213](https://openairdocs.org/model/airbus-a321-213) (OpenAirDocs)
- Aircraft serial: 8530
- Aircraft time: 18,723 hours, 8,386 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil System
- Condition: Leaking
- Location: Apu
- Stage of operation: AP
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025011300289

## Discrepancy

SHIP 3064 - MISC/DE - SUPPLEMENT: DUE TO A DIRTY SOCK SMELL IN THE CABIN AND FLIGHT DECK. CORRECTIVE ACTION: DETERMINED APU TO BE THE CAUSE OF THE CONTAMINATION. DEFERRED APU PER MEL 49-10-01A. LATER, C/W APU INLET AND COMPARTMENT WITH UV LIGHT FOR OIL CONTAMINATION PER A321 AMM 49-00. NO CONTAMINATION IN INLET, PLENUM OR BLEED DUCT. NO OIL IN COMPRESSOR DRAIN LINE. AS PRECAUTION FOR AN ODI EVENT. C/W AMDS WORK CARD 4916-2001, CLEANED APU INTAKE AND COMPARTMENT. (LP 5382504, 5382506)

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