Service difficulty report · Gearbox · Bolkms BK117C2

Difficulty date
October 8, 2014
Submitted
October 10, 2014
Operation
Air carrier
Aircraft
N102VU
Make and model
Bolkms BK117C2
Aircraft serial
9044
Aircraft time
6,793 hours, 18,959 cycles
Part
Gearbox
Part number
4639003009
Part serial
943
Condition
Unserviceable
Location
Tail Rotor
Part time
4,340 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

WHILE PERFORMING D1011 INSPECTION, TAIL ROTOR GEARBOX WAS REMOVED. UPON INSPECTION OF GEARBOX FOUND THE TWO MOUNTING STUDS LOOSE IN THE TAIL ROTOR GEARBOX. THIS GEARBOX IS IN THE PROCESS OF BEING REPLACED WITH A SERVICEABLE PART AT THE TIME OF THIS SUBMISSION.