Airworthiness Directives; Bombardier, Inc. Airplanes

We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc. Model BD-100-1A10 airplanes. This proposed AD was prompted by a report that the equipment racks were not designed to support the weight of all the equipment and the secondary direct current power centers. This proposed AD would require modifying the equipment racks. We are proposing this AD to address the unsafe condition on these products.