# SDR CALA2025081807866

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 17, 2025
- Submitted: August 18, 2025
- Operation: Air carrier
- Aircraft: [N37513](https://openairdocs.org/aircraft/N37513), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 64494
- Aircraft time: 15,513 hours, 5,128 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cabin
- Stage of operation: NR
- 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/CALA2025081807866

## Discrepancy

BURNT PLASTIC SMELL WITH APU BLEED AIR ON. OPERATED APU AND PACKS, OPS NORMAL, NO ODOR.

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