Singapore legislation
Regulation 39
Regulation 39
Performance applicability — helicopters
Subregulation 1
Subject to paragraphs (2) and (3), an AWC holder must ensure that every relevant aircraft corresponding to one of the following helicopter descriptions operated in accordance with the specified Performance Class:
a helicopter with an MAPSC exceeding 19 must be operated in Performance Class 1;
a helicopter with an MAPSC of 9 or more but not exceeding 19 must be operated in Performance Class 1 or 2;
a helicopter with an MAPSC not exceeding 9 must be operated in Performance Class 1, 2 or 3.
Subregulation 2
An AWC holder must ensure that a helicopter mentioned in paragraph (1)(c) is not operated in Performance Class 3 under any of the following circumstances:
when the surface is not in sight;
at night;
when the cloud ceiling is less than 180 m (600 ft);
when the visibility is less than 1500 m; (e)over an open sea area.
Subregulation 3
Where a helicopter is to be operated to or from a heliport in a congested and hostile environment, the AWC holder must ensure that the helicopter is operated in accordance with Performance Class 1.