Service difficulty report · Bushing · Lear 45LEAR

Difficulty date
May 5, 2019
Submitted
May 7, 2019
Operation
Air carrier
Aircraft
N777QL
Make and model
Lear 45LEAR
Aircraft serial
216
Aircraft time
6,361 hours, 4,632 cycles
Part
Bushing
Part number
4527102086003
Condition
Missing
Location
Control Wheel
Part time
6,361 hours, 4,632 cycles
Component
Drum · Lear
Component part number
4527102056001
Stage of operation
IN
How discovered
C
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 INVESTIGATING PILOT REPORT OF LEFT / RIGHT AND FORWARD PLAY, DETERMINED CONTROL WHEEL DRUM BEARING (P/N MS27646-43) TO BE WORN. UPON FURTHER INVESTIGATION, DETERMINED BEARING WEAR RESULTING OF MISSING CONTROL WHEEL DRUM BUSHINGS (P/N'S 4527102086-003 AND 4527302001V32-003) ALLOWING SUFFICIENT GAP FOR ANGULAR AXIAL LOADS TO BE APPLIED ON RADIAL BEARING. BUSHINGS INSTALLED AND BEARING REPLACED.