Service difficulty report · Slip Ring · Agusta AW139

Difficulty date
November 18, 2013
Submitted
September 14, 2015
Operation
General aviation
Make and model
Agusta AW139
Aircraft time
127 hours
Engine
Pwc PT6C67C
Part
Slip Ring
Part number
4G6420V00152
Condition
Failed
Location
Tail Rotor
Part time
48 hours
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 A 50HR BY-WEEKLY INSPECTION, ENGINEER DISCOVERED THAT THE DUPLEX BEARING IN THE TAIL ROTOR SLIP RING HAD DETERIORATED BEYOND ACCEPTABLE LIMITS.

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