Service difficulty report · Bearing · Bell 407

Difficulty date
November 4, 2015
Submitted
November 4, 2015
Operation
General aviation
Filed by
HEER617E
PHI Aviation, LLC
Aircraft
N407PH
Make and model
Bell 407
Aircraft serial
53003
Aircraft time
17,669 hours
Engine
Allsn 250C47B
Engine time
1,162 hours
Part
Bearing
Part number
M25010106
Part serial
NWH141052
Condition
Spalled
Location
Engine
Part time
284 hours
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

ENGINE REMOVED 10-24-15 DUE TO BROKEN 6 & 7 BOLT. NR 5 BEARING EXHIBITS PROBABLE SPALLING ON OUTER RACE SPLIT. PART WILL BE RETURNED TO MFG FOR FURTHER EVALUATION.

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