| (1) | A meteorological service provider shall issue wind-shear warnings when wind shear which may affect aircraft operation is observed or expected— |
| (a) | on approach path or take-off path; |
| (b) | during circling approachp; and |
| (c) | during landing roll or take-off run. |
| (2) | Wind-shear warning shall be— |
| (a) | issued at an aerodrome where local topography is known to produce significant wind shear up to heights in excess of 500m or 1600ft above runway level; |
| (b) | based on information reported by pilots and observed through other means such as wind shear detection equipment; and |
| (c) | cancelled in accordance with criteria determined by and ATSU and an aircraft operator when there is no Ionger evidence of its existence. |
| (3) | Wind-shear remote sensing or detection equipment shall be installed at an aerodrome where wind shear is know to be common or where there is evidence that it is frequent. |
| (4) | Where a wind shear alert system has been installed, such a system shall provide alerts of existence of wind shear involving a headwind or tailwind change of 7.5m/s (15kt) or more on initial take-off path, final approach path and during the landing roll or take-off run. |
| (5) | A wind shear alert shall be updated at least every minute and cancelled as soon as headwind/tailwind change falls below 7.5m/s (15 kt). |
[Regulation 174.04.10 inserted by regulation 19 of Notice No. R. 520, GG 42632, dated 29 March 2019 (Twentieth Amendment of the Civil Aviation Regulations, 2019)]
