Service difficulty report · Plate · Bell 206B3

Difficulty date
April 17, 2013
Submitted
November 29, 2013
Operation
General aviation
Make and model
Bell 206B3
Part
Plate
Part number
206040204001
Condition
Misinstalled
Location
Freewheel
Part time
5,204 hours, 1,064 cycles
Component
Freewheel
Component part number
206040270003
Stage of operation
IN
How discovered
V
Nature of condition
W
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FREEWHEEL ARRIVED TO OUR FACILITY FOR REPAIR DUE TO METAL PARTICLES ON FREEWHEEL AND ON TRANSMISSION OIL FILTER MAGNETIC PLUG. DURING DISASSEMBLY WE FOUND THAT PLATE, PN 206-040-204-001 WAS INSTALLED INCORRECT. AS STATED BHT-206-A/B/L-SERIES CR&O CHAP 63-55, PARA 4M THE PLATE IS TO BE INSTALLED WITH CHAMFERED OUTER EDGE NEXT TO THE CLUTCH ASSEMBLY. WE ALSO DISCOVERED THAT BEARING PN 206-040-205-105, SN 49765 HAS BEEN ROTATING INSIDE OUTER SHAFT. THIS CAUSED MAJOR WEAR ON THE RETAINING RING, PN M2742630165D AND CREATED ALL THE METAL PARTICLES FOUND IN THE TRANSMISSION AND FREEWHEEL.

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