# SDR 8LFA20220322001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 22, 2022
- Submitted: April 4, 2022
- Operation: Air carrier
- Aircraft: [N402LF](https://openairdocs.org/aircraft/N402LF), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft time: 1,050 hours
- Engine: Allsn 250C47B
- Engine time: 1,050 hours, 2,484 cycles
- System (JASC): [7500 · Engine Bleed Air System](https://openairdocs.org/jasc/7500)
- Part: None
- Condition: None
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/8LFA20220322001

## Discrepancy

SMOKE IN CABIN WHEN HEAT IS TURNED ON. FOUND ENGINE #1 BEARING CARBON SEAL LEAKING CAUSING CONTAMINATION OF BLEED AIR. DELAYED SUBMITTAL DUE TO INABILITY TO ACCESS SYSTEM

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