(1) |
The meteorological service provider shall supply meteorological information to meteorological information users referred to in regulation 174.01. 1 in order to fulfil their respective mandates and develop air navigation systems. |
(2) |
The meteorological information referred to i n subregulation (1) shall be used— |
(a) |
during pre-flight planning by air service operator; |
(b) |
during in-flight re-planning by air service operator using centralised operational control of flight operations; |
(c) |
by flight crew members before departure; |
(d) |
by aircraft in flight; and |
(e) |
by ATSUs providing flexible routing options as an element of trajectory management. |
(3) |
Meteorological information supplied in accordance with subregulation (1) shall be understood by users to be— |
(a) |
the best approximation of the actual conditions at the time of observation; and |
(b) |
the most probable value which the meteorological element is likely to assume during the period of the forecast. |
(4) |
The time of occurrence or change of an element as given in a forecast shall be understood by users to be the most probable time when the phenomenon is likely to occur. |
[Regulation 174.01.4 substituted by regulation 8(d) of Notice No. 5008, GG50880, dated 28 June 2024 (Twenty-Ninth Amendment of the Civil Aviation Regulations, 2024)]