Airworthiness directives › 2018-06-11
AD 2018-06-11 Airworthiness Directives; Textron Aviation Inc. Airplanes
Makes named: textron aviation, continental. Models named: A36TC, B36TC, S35, V35, V35A, V35B. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
(1) This AD applies to the following Textron Aviation Inc. airplanes; all serial numbers, that are certificated in any category: (i) Models A36TC and B36TC airplanes equipped with a turbocharged engine. (ii) Models S35, V35, V35A, and V35B airplanes equipped with the Continental TSIO-520-D engine with AiResearch turbocharger during manufacture; and (iii) Models S35, V35, V35A, and V35B airplanes equipped with StandardAero Supplemental Type Certificate (STC) SA1035WE. (2) If the one-piece v-band coupling (clamp), part number (P/N) NH1000897-40, is installed on Textron Aviation Inc. Models S35, V35, V35A, and V35B airplanes equipped with the Continental TSIO-520-D engine with AiResearch turbocharger during manufacture, this AD does not apply to those airplanes.
Compliance
Comply with this AD within the compliance times specified, unless already done. For the purposes of this AD, the exhaust tailpipe v-band coupling may also be referred to as the exhaust tailpipe v-band clamp.
Required actions
Within 50 hours time-in-service (TIS) after May 3, 2018 (the effective date of this AD), do a maintenance records review to determine the hours TIS of the exhaust tailpipe v-band coupling. If unable to determine the hours TIS of the exhaust tailpipe v-band coupling, use the compliance time specified in paragraph (h)(2) of this AD.
Unsafe condition
This AD was prompted by a fatal accident where the exhaust tailpipe fell off during takeoff. We are issuing this AD to prevent failure of the exhaust tailpipe v-band coupling (clamp) that may lead to detachment of the exhaust tailpipe from the turbocharger and allow high-temperature exhaust gases to enter the engine compartment, which could result in an inflight fire.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1