Service difficulty report · Bearing · Bolkms BO105S

Difficulty date
November 18, 2003
Submitted
January 5, 2004
Operation
General aviation
Make and model
Bolkms BO105S
Aircraft time
4,874 hours
Engine
Allsn 250C20B
Part
Bearing
Part number
601741
Condition
Worn
Location
Isolation Mount
Stage of operation
IN
How discovered
9
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

(CAN) DURING PERIODIC 100-HOUR INSPECTION A VIBRATION ISOLATOR BEARING WAS FOUND ROUGH. UPON DISASSEMBLY, DAMAGE WAS FOUND ON THE INNER AND OUTER RACES OF THE BEARING DUE TO LACK OF LUBRICATION. METAL PARTICLE PASTE WAS EVIDENT IN THE BEARING AREA.