13.4.1 The helideck should have recessed tie-down
points for securing a helicopter.
13.4.2 The periphery of the helideck should be
fitted with a safety net except where structural protection exists.
The net should be inclined upwards at an angle of 10° and outwards
from below the edge of the helideck to a horizontal distance of 1.5
m and should not rise above the edge of the deck.
13.4.3 The helideck should have both a main and
an emergency personnel access route located as far apart from each
other as practicable.
13.4.4 Reference should be made to paragraph 9.17.5
concerning helideck drainage.