Airworthiness Directives; Bombardier, Inc., Airplanes

We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes. This proposed AD was prompted by reports of drainage holes on the belly fairing forward and middle access panels being obstructed with sealant. This proposed AD would require inspecting for and removing all sealant blocking the drainage holes on the belly fairing forward and middle access panels. We are proposing this AD to address the unsafe condition on these products.