Superseding AD Proposed for AStar Vertical Fin Spar
The FAA has proposed to supersede AD 2021-20-16, which applies to certain AS350B3 and AS355 helicopters. AD 2021-20-16 was issued in October 2021 and requires repetitive cleaning and visual and detailed inspections of the right-hand side of the vertical fin spar and vertical fin upper attachments for discrepancies (cracking) with corrective action, if necessary.

