Airworthiness directives › 2023-17-51
AD 2023-17-51 Airworthiness Directives; Bell Textron Canada Limited Helicopters
Models named: 407. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Bell Textron Canada Limited Model 407 helicopters, certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Except as specified in paragraphs (h) and (i) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, Transport Canada Emergency AD CF-2023-63, dated August 17, 2023 (Transport Canada AD CF-2023-63).
Unsafe condition
This AD was prompted by a report of a disbonded area in a tail rotor (T/R) blade due to missing adhesive between the upper skin and core. The FAA is issuing this AD to detect skin to core voids that exceed allowable limits in affected T/R blades. The unsafe condition, if not addressed, could result in severe vibration, failure of the T/R blade, and subsequent loss of T/R control.
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