Service difficulty report · Bearing · Bell 206L4

Difficulty date
June 4, 2010
Submitted
January 4, 2011
Operation
Air carrier
Make and model
Bell 206L4
Aircraft time
38 hours
Engine
Allsn 250C30P
Part
Bearing
Part number
406040531103
Condition
Spalled
Location
Freewheel Unit
Part time
47 hours
Component
Freewheel Assy
Component part number
406040500143
Stage of operation
AP
How discovered
O
Nature of condition
J
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING FINAL APPROACH TO AIRPORT FREEWHEEL CHIP LIGHT ILLUMINATED. FUTHER INVESTIGATION REVEALED OIL SYS METAL CONTAMINATION. FWD DUPLEX BEARING IN FREEWHEEL ASSY FOUND MAKING METAL FREEWHEEL ASSY REMOVED FROM SERVICE AND FREEWHEEL REPLACED NEW. OIL SYS FLUSHED AND ACFT RETURNED TO SERVICE. FREEWHEEL RETURNED TO MFG FOR WARRANTY.

More about the Bell 206L-4