# SDR DALA2025032602238

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 24, 2025
- Submitted: March 26, 2025
- Operation: Air carrier
- Aircraft: [N121DU](https://openairdocs.org/aircraft/N121DU), registered now
- Make and model: Airbus BD-500-1A10
- Registry model: [Airbus BD-500-1A10](https://openairdocs.org/model/airbus-canada-ltd-ptnrsp-bd-500-1a10) (OpenAirDocs)
- Aircraft serial: 50040
- Aircraft time: 15,103 hours, 6,832 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cabin
- Stage of operation: AP
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025032602238

## Discrepancy

STRONG OZONE ODOR FROM APU BLEED AFTER START UP UPON LANDING. PERFORMED T/S IAW W/C. # 0550-2001 NO FINDINGS THEN C/W 0550- 2003 NO FINDINGS ALSO DUE TO RECENT DUEL ENG W/W SUSPECTED AS CAUSE REF LOG # 0873410 FOR NO GO ODI PREVENTION A/C OK FOR SVC

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