Im Guessing this is the rule the CAA are trying to enforce;
CAR Part 139.309 Use of heliports
(a) Except for a person operating a helicopter on an external load
operation, no person operating a helicopter shall use any place within a populous area as a heliport unless the heliport has physical characteristics, obstacle limitation surfaces and visual aids commensurate with the characteristics of the helicopter being operated and the ambient light
conditions during operations, and the person has complied with
paragraph (c).
(c) Before using any place as a heliport, a person operating a helicoptershall ensure that—
(1) the heliport is clear of all persons, animals, vehicles or other
obstructions during the hover, touchdown or lift-off other than
persons and vehicles essential to the operation; and
(2) the selected approach and take off paths are such that, if the
helicopter is not a performance-Class 1 helicopter, an
autorotative landing can be conducted without any undue risk to
any person on the ground;
CAR Part 1; Heliport
means any defined area of land or water, and any defined area on a structure, intended or designed to be used either wholly or partly for the landing, departure, and surface movement of helicopters:
Would enforcement of this rule also apply to any city helipad (other than ones that approach over water) - probably including all hospital helipads?
Is BK117 performance Class 1 ensured at all times when landing at their inner city helipads (possibly the S76's in Northland are!!)?
In my feable opinion this is a big can of worms that the CAA will need to follow up all over the country!!!!