Summary
The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier Inc., Model CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes. This proposed AD was prompted by a determination that certain airplanes have outdated magnetic variation (MagVar) tables inside navigation systems. This proposed AD would require revising the existing airplane flight manual (AFM) to update the Flight Management System (FMS) and Inertial Reference System (IRS) limitations. The FAA is proposing this AD to address the unsafe condition on these products.