AD/AS 355/30 - Cargo Hook Emergency Manual Control - CANCELLED

What this does This instrument cancels a previous aviation safety rule (an Airworthiness Directive) that applied to Eurocopter AS 355 helicopters.

The old rule The original directive required owners to modify cargo hooks fitted with "Siren release units" to add emergency manual controls. This modification allowed pilots to manually release cargo if the normal system failed. The work had to be completed before January 1988.

Who is affected Owners and operators of Eurocopter AS 355 (Twin Ecureuil) series helicopters that were subject to the original 1988 requirement.

Why it matters The rule is being cancelled because the modification deadline passed decades ago. All affected helicopters have already been modified, making the safety requirement redundant. Once cancelled, operators no longer need to track compliance with this specific directive.