Thu, Sep 18, 2003
The FAA has issued an
Emergency AD, (AD) 2003-19-51, for the attention of all owners and
operators of certain Bombardier Model CL-600-2C10 (Regional Jet
Series 700 & 701) and CL-600-2D24 (Regional Jet Series 900)
series airplanes.
Transport Canada Civil Aviation (TCCA), which is the
airworthiness authority for Canada, recently notified the FAA that
an unsafe condition may exist on certain Bombardier Model
CL-600-2C10 (Regional Jet Series 700 & 701) and CL-600-2D24
(Regional Jet Series 900) series airplanes. The lower panel of the
door of the right-hand main landing gear (MLG) of a Model
CL-600-2C10 series airplane departed the airplane during landing.
The airplane was able to land safely, though the departed panel
damaged the trailing edge flap and punctured the rear fuselage near
the floor level, below the engine pylon.
Investigation revealed
cracking of the hinge lug of the door panel, which led to
detachment of adjacent fasteners and increased loading on the
remaining fasteners. This condition, if not corrected, could result
in failure of the lower panel of the MLG door, the lower
panel’s departure from the airplane, and consequent damage to
airplane structure, which could adversely affect the
airplane’s continued safe flight and landing.
The left- and right-hand MLG doors on certain Model CL-600-2C10
(Regional Jet Series 700 & 701) and CL-600-2D24 (Regional Jet
Series 900) series airplanes are identical to the affected
right-hand MLG door on the affected Model CL-600-2C10 series
airplane. Therefore, the MLG doors on all of these airplanes may be
subject to the same unsafe condition.
TCAA has issued Canadian airworthiness directive CF-2003-23R1,
dated September 16, 2003, to ensure the continued airworthiness of
these airplanes in Canada.
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