AD NUMBER: 2009-05-04
SUBJECT: Airworthiness Directive 2009-05-04
SUMMARY: The FAA is adopting a new airworthiness directive
(AD) for certain Bombardier Model CL-215-6B11 (CL-215T variant) and
CL-215-6B11 (CL-415 variant) airplanes.
This AD requires repetitive inspections for contamination of
grease, bearing wear checks, grease applications of the rudder
lower torque tube upper bearing, and a rudder upper hinge gap
check; and related investigative and corrective actions if
This AD results from a report of corrosion on the rudder lower
torque tube upper bearing. We are issuing this AD to detect and
correct corroded bearings which could lead to hinge deformation,
and could result in a rudder jam and consequent reduced
controllability of the airplane.