SDR ERAA082950

Service difficulty report · Bushing · Bell 412

Difficulty date
January 6, 2003
Submitted
January 14, 2003
Operation
Air carrier
Aircraft
N416EH
Make and model
Bell 412
Aircraft serial
33011
Aircraft time
13,514 hours
Part
Bushing
Condition
Worn
Location
Rotor Head
Part time
13,561 hours
Component
Rotor Head
Component part number
412010401111FM
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

HUB & SLEEVE ASSY HAS WORN S/P LINK AND WORN COLLECTIVE BUSHINGS. DISASSEMBLED TO FASCILITATE COLLECTIVE LEVER BUSHING REPLACEMENT. REPAIRED COLLECTIVE TEFLON BUSHINGS & SPACERS 4 S/P LINK SPHERICAL BRGS, 1 DRIVE LINK SPHERICAL BRG, BEARINGS IN LINERS, COLLECTIVE PINS, AND TRUNNION. REPLACED DRIVE LINK ASSY. REASSEMBLED HUB & SLEEVE ASSY REATTACHED TO SWASHPLATE SN RE-10098. INSTALLED COLLECTIVE LEVER WITH NEW PINS AND SAFETIED. LUBRICATED WITH MOBIL 28. REPAIRED IAW 412 &N CR&O CH 62, MM 62, & SPM TT 13560.9 TSO 1158.8.

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