Service difficulty report · Bearing · Urocop EC135P2

Difficulty date
September 24, 2018
Submitted
September 27, 2018
Operation
General aviation
Aircraft
N312RX
Make and model
Urocop EC135P2
Aircraft serial
1099
Aircraft time
3,238 hours
Part
Bearing
Part number
1051314203
Part serial
NA
Condition
Backed Out
Location
Main Rotor Head
Component
Helical Lever · Airbus
Component part number
L623M4003102
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

DURING INSTALLATION OF THE HELICAL LEVER THE BEARING PN 105-13142.03 BACKED OUT OF THE LEVER BORE HOLE. THE INSTALLATION REQUIRES THE BEARING TO BE FORCE PEENED. ON EXAMINATION OF THE BEARING IT APPEARS IT HAD NOT BEEN PEENED THERE ISN'T ANY EVIDENCE OF TOOL MARKS NOR IS THERE EVIDENCE OF THE OUTER RACE END FACE BEING BENT OVER. THE PART WAS REPAIRED BE HELICOPTER SERVICES OF UTAH REPAIR STATION NUMBER KBTR482F UNDER WO 5566. WE HAVE REMOVED ALL LEVERS(5EA)FROM THIS VENDOR FROM SERVICE AND STOCK AND PLACED IN QUARANTINE.

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