# SDR DALA2026101805704

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 17, 2026
- Submitted: October 18, 2026
- Operation: Air carrier
- Aircraft: [N528DE](https://openairdocs.org/aircraft/N528DE), 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: 11248
- Aircraft time: 15,343 hours, 3,771 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/DALA2026101805704

## Discrepancy

AFT FA SUSPECTED DIRTY SOCK ODOR DURING FINAL APPROACH.   REPLACED APU ASSY PER A321 W/C 4900-9002. (LP 8966926, 1870241 - AIRCRAFT WAS GROUNDED)

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