# SDR DALA2026061503566

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 12, 2026
- Submitted: June 15, 2026
- Operation: Air carrier
- Aircraft: [N356NW](https://openairdocs.org/aircraft/N356NW), registered now
- Make and model: Airbus A320-212
- Registry model: [Airbus A320-212](https://openairdocs.org/model/airbus-industrie-a320-212) (OpenAirDocs)
- Aircraft serial: 818
- Aircraft time: 81,049 hours, 38,389 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil System
- Condition: Overserviced
- Location: Apu
- Stage of operation: DE
- How discovered: O
- Nature of condition: W, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026061503566

## Discrepancy

SMOKE/FUME EVENT AFT GALLEY (10K THROUGH LANDING). C/A: PERFORMED INITIAL INSPECTION OF NR 1 , NR 2 ENG AND APU COMPARTMENT NO EXTERNAL LEAKS NOTED. (WIP D.P 098218). PERFORMED W/C 0550- 2001, LOGGED DATA WITH PTRAK , RESULTS SUBMITTED TO SMOKE AND FUMES GROUP, SPIKE IN DATA ON APU AND ENG#1 . PERFORMED W/C 4900 -2001, FOUND APU OIL OVERSERVICED, NO FURTHER DISCREPANCIES ON APU INSP. REMOVED ENG#1 HP VALVES, INSPECTED VALVE AND DUCTS NO OIL CONTAMINATION FOUND. REINSTALLED REF A320AMM 36-11 OPS AND LEAK CHECK GOOD. PERFORMED LEVEL A ECS DECONTAMINATION PER W/C 2100-2007 PERFORMED WC 0550-2001 AGAIN NO SPIKE IN APU DATA ENG #1 REMAINS HIGH, DATA SUBMITTED TO SMOKE AND FUMES GROUP. FOUND PACK #1 CONTAMINATED, PERFORMED LEVEL B DECONTAMINATION PER W/C 2100-2005 NO SMELL WITH ENGINE AND APU BLEED DURING VERIFICATION FOR ODOR. (LP: 8678694, AIRCRAFT WA GROUNDED)

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