# SDR DALA2026022401311

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 20, 2026
- Submitted: February 24, 2026
- Operation: Air carrier
- Aircraft: [N373NW](https://openairdocs.org/aircraft/N373NW), registered now
- Make and model: Airbus A320-212
- Registry model: [Airbus A320-212](https://openairdocs.org/model/airbus-industrie-a320-212) (OpenAirDocs)
- Aircraft serial: 1641
- Aircraft time: 69,463 hours, 33,325 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil System
- Condition: Leaking
- Location: Apu
- Stage of operation: TX
- 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/DALA2026022401311

## Discrepancy

ON BOARDING ACFT WITH APU RUNNING,  A STRONG ODOR WAS NOTICED. IT SMELLED LIKE A MUSTY BURNING OVEN CLEANER. THE APU BLEED WAS TURNED OFF NO VISIBLE ODOR WAS NOTICED.  ODOR WAS IN COCKPIT AND CABIN.  ISOLATED SOURCE OF SMOKE & FUME ODOR TO APU OIL LEAK.  C/W W/C 0550- 2002. COMPLIED WITH LEVEL B DECONTAMINATION & ECS REVERSE DUCT BURN PROC. PER W/C 2100-2005. RAN BOTH ENG'S W/ BOTH BLEEDS TOGETHER + SEPERATLY AT HIGH PWR FOR 45 MINS. R+R'D BOTH CABIN RECIRC FILTERS PER A320 AMM 21-21. PERFORMED CONFIRMATION RUN OF BOTH ENG'S + PACKS, NO ODORS THROUGHOUT CABIN. A/C OKAY FOR SVC. (LP: 8036074)

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