What was found
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
- Difficulty date
- March 22, 2022
- Submitted
- April 4, 2022
- Operation
- Air carrier
- Aircraft
- N402LF
- Make and model
- Bell 407
- Aircraft time
- 1,050 hours
- Engine
- Allsn 250C47B
- Engine time
- 1,050 hours, 2,484 cycles
- System (JASC)
- 7500 · Engine Bleed Air System
- Part
- None
- Condition
- None
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- B
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.