A Hughes 369D helicopter collided with two 11,000 volt electric power conductors on 14 March 1994 at Mohaka near Wairoa. The safety issues identified were the need for detailed preparation before engaging in low level air transport operations, the permissive operation of low level air transport operations and the marking of long spans of wires above wide valleys.
He review the present provision in CASO 20 Part 9 with a view to requiring operators to obtain specific permission for air transport operations at low level irrespective of whether or not they are planned over populous areas.
