# SDR EVCA202512010001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 26, 2025
- Submitted: December 1, 2025
- Operation: Air carrier
- Aircraft: [N870AE](https://openairdocs.org/aircraft/N870AE), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 56443
- Aircraft time: 100 hours
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Hose
- Part number: S5056ECH1
- Condition: Melted
- Location: Zone 100
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/EVCA202512010001

## Discrepancy

SMOKE IN CABIN, AC HOSE ASSY HAD SPIRAL WRAP ON IT THAT CONTACTED HEATER SYSTEM FITTING BETWEEN TUBES PN: S-9402EC-17 AND S-9402EC-12 WHICH MELTED AND IS SUSPECTED TO HAVE CAUSED THE SMOKE IN CABIN EVENT.

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