Airworthiness Directives; Textron Aviation Inc. Airplanes

We propose to adopt a new airworthiness directive (AD) for all Textron Aviation Inc. Models A36TC and B36TC airplanes. This proposed AD was prompted by a fatal accident where the exhaust tailpipe fell off during takeoff. This proposed AD would add a life limit to the exhaust tailpipe v-band coupling (clamp) that attaches the exhaust tailpipe to the turbocharger and, if the coupling is removed for any reason before the life limit is reached, this proposed AD would require an inspection of the coupling before reinstalling. We are proposing this AD to correct the unsafe condition on these products.