# SDR DALA2026020100739

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 29, 2026
- Submitted: February 1, 2026
- Operation: Air carrier
- Aircraft: [N329NB](https://openairdocs.org/aircraft/N329NB), registered now
- Make and model: Airbus A319-114
- Registry model: [Airbus A319-114](https://openairdocs.org/model/airbus-a319-114) (OpenAirDocs)
- Aircraft serial: 1543
- Aircraft time: 65,157 hours, 34,013 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Filter
- Condition: Odor
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026020100739

## Discrepancy

AFTER ENG START, NR 2 WITH AIRCART.  AFT FA REPORTS CHEMICAL BURNING ODOR AFTER BLEED AIR & PACKS. PACKS/BLEEDS TURNED OFF AND FA REPORTS ODOR WAS DISSIPATING.  PER MCC REQUEST BEGAN A LEVEL C DECONTAMINATION IAW AMM 21- 00-00-615-804-A THROUGH STEP 3. CONDENSOR 11HM2 SHOWS NO SIGNS OF CONTAMINATION AND CHECK VALVE 16HM SHOWS NO SIGNS OF CONTAMINATION. TRIM-AIR-PRESSURE-REGULATING VALVE ALSO SHOWS NO SIGNS OF CONTAMINATION. (14HK). PERFORMED LEVEL C DECONTAMINATION OF THE ECS IAW AMM 21-00 UP TO STEP 4(T). NO SMELLS NOTED.  R & R RECIRC FILTERS. COMPLETED REMOVAL OF CONTAMINATION IAW AMM-21-00. NO SMELLS NOTED. (LP: 8035648)

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