Service difficulty report · Bearing Cage · Bell 47G2

Difficulty date
November 1, 2007
Submitted
January 21, 2008
Operation
General aviation
Make and model
Bell 47G2
Aircraft time
9,940 hours
Engine
Lyc VO435A1E
Part
Bearing Cage
Part number
476206283
Condition
Making Metal
Location
M/R Transmission
Component
Transmission · Bell
Component part number
4762060025
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

(CAN) DURING ROUTINE INSPECTION, SMALL AMOUNT OF BRASS WAS FOUND IN OIL SCREEN, THE TRANSMISSION WAS DISASSEMBLED TO LOCATE THE FAILED ITEM AND IT WAS FOUND TO BE ONE OF THE BEARING CAGES IN THE DUPLEX BEARING THAT THE UPPER SUN GEAR GOES THROUGH, THIS IS THE NEW AND IMPROVED BEARING INSTALLED IAW TB 47-75-4 (TC NR 20071102013)

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