AD/BELL 212/56 - Tailboom Doubler - CANCELLED

What this does: This document officially cancels a previous safety inspection rule for Bell 212 helicopters in Australia.

The cancelled rule: Previously, owners had to conduct detailed internal visual inspections of the tailboom doubler (a structural reinforcement plate inside the helicopter's tail section) every 100 hours of flight time. This was to detect potential structural failures.

Why it's cancelled: The original directive required a permanent fix (called "terminating action") to be completed by May 1996. Since that deadline has long passed and the safety issue has been addressed fleet-wide, the ongoing inspection requirement is now unnecessary.

Who is affected: Owners and operators of Bell Helicopter Textron 212 series aircraft registered in Australia. They are no longer required to perform these specific inspections or comply with the superseded directive.