(1) |
An aircraft registered in the Republic which is equipped with data-link shall make and report on— |
(a) |
routine aircraft observations during en-route and climb-out phases of a flight; and |
(b) |
special meteorological observations during any phase of a flight. |
(2) |
Where air ground data link is used and ADS-C or SSR is being applied, routine aircraft observations shall be made every 15 minutes during an en-route phase and every 30 seconds during a climb-out phase for the first 10 minutes of a flight. |
(3) |
The Director shall designate, on a route with high-density traffic, an aircraft from among air service operators operating at each flight level, to make routine observations. |
(4) |
An air service operator shall make special aircraft observations whenever the following conditions are encountered or observed: |
(b) |
moderate or severe turbulence; |
(c) |
moderate or severe icing; |
(d) |
severe mountain waive; |
(e) |
thunderstorms that are obscured, embedded, widespread or in squall lines; |
(f) |
heavy dust-storm or heavy sandstorm; |
(g) |
volcanic ash cloud; or |
(h) |
pre-eruption volcanic activity or a volcanic eruption. |
(5) |
An air service operator shall report aircraft observations during flight, at the time an observation is made or as soon as is practicable. |
(6) |
An aircraft observation shall be reported as follows: |
(a) |
air-ground data link for routine observation; and |
(b) |
voice communication for special and non-routine aircraft observation made during a flight. |
(7) |
An ATSU shall relay special air reports received by voice communication to a local meteorological office or associated MWO. |
(8) |
An ATSU shall relay routine and special air-reports received by data link communication without delay to its associated MWO and the world area forecast centres. |
(9) |
A meteorological office shall upon receipt of special air-reports from a local ATS unit, prepare and issue wind-shear warning and aerodrome warning in accordance with this Part. |
(10) |
A MWO shall upon receipt of special air-report from a local ATSU, issue AIRMET or SIGMET in accordance with this Part. |
(11) |
An air service operator shall record special aircraft observations of pre-eruption volcanic activity, a volcanic eruption or volcanic ash cloud on a special air-report form and share a copy with a meteorological service provider. |
(12) |
A meteorological service provider shall include a copy of a completed special air-report in a flight documentation provided to a flight operating on routes which may be affected by volcanic ash clouds. |
[Regulation 174.04.11 inserted by regulation 19 of Notice No. R. 520, GG 42632, dated 29 March 2019 (Twentieth Amendment of the Civil Aviation Regulations, 2019)]