Airworthiness Directive · Amendment 39-13628 · Bombardier Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), and CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604) Series Airplanes
Bombardier Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), and CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604) Series Airplanes
This AD applies to the airplanes listed in Table 1 of this AD, certificated in any category. Table 1 is as follows: Table 1.--Applicability Model Serial Nos. CL-600-1A11 (CL-600) series airplanes....... 1004 through 1085 inclusive. CL-600-2A12 (CL-601) series airplanes....... 3001 through 3066 inclusive. CL-600-2B16 (CL-601-3A and CL-601-3R) series 5001 through 5194 inclusive. airplanes. CL-600-2B16 (CL-604) series airplanes....... 5301 through 5499 inclusive.
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Bombardier transport category airplanes, that currently requires a detailed inspection to detect cracks of the vane brackets of the inboard flap actuator beam, and follow-on repetitive detailed inspections or corrective actions, as applicable. That AD also provides for two optional terminating actions for the detailed inspection(s). This action requires performing one or the other of the terminating actions. The actions specified by this AD are intended to detect and correct gaps between the flap vane bracket and the adjacent lower skin and between the flap vane bracket and vane actuator beam, and premature cracking of the flap vane brackets, which could result in failure of the flap vane bracket(s) when the flaps are extended and the flap vane is aerodynamically loaded, and consequent reduced controllability of the airplane. This action is intended to address the identified unsafe condition.
