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Appendix 4
Available versions for ERULES-1963177438-3067
Regulation (EU) 2021/1338
found in: ATM/ANS Provision of Services (2017/373) (Mar 2025)
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Appendix 4 Regulation (EU) 2021/1338 <table border="0" cellpadding="0" cellspacing="0" width="671"><tr><td valign="top" width="671"><p><b>Template for wind shear warnings </b></p><p><i>Key:</i></p><p>M = inclusion mandatory;</p><p>C = inclusion conditional, whenever applicable.</p><p><i>Note 1:</i> The ranges and resolutions for the numerical elements included in wind shear warnings are shown in Appendix 8.</p><p><i>Note 2:</i> The explanations for the abbreviations can be found in ICAO Doc 8400 <i>Procedures for Air Navigation Services — ICAO Abbreviations and Codes (PANS-ABC)</i>.</p><p><i>Note 3: </i>Row numbers in the ‘Ref.’ column are included only for clarity and ease of reference, and are not part of the wind shear warning.</p></td></tr></table> <table border="1" cellpadding="0" cellspacing="0" width="0"><tr><td valign="top" width="38"><p align="center">Ref.</p></td><td valign="top" width="151"><p align="center">Element</p></td><td valign="top" width="151"><p align="center">Detailed content</p></td><td valign="top" width="331"><p align="center">Template(s)</p></td></tr><tr><td valign="top" width="38"><p align="center">1</p></td><td valign="top" width="151"><p>Location indicator of the aerodrome (M)</p></td><td valign="top" width="151"><p>Location indicator of the aerodrome</p></td><td valign="top" width="331"><p>nnnn</p></td></tr><tr><td valign="top" width="38"><p align="center">2</p></td><td valign="top" width="151"><p>Identification of the type of message (M)</p></td><td valign="top" width="151"><p>Type of message and sequence number</p></td><td valign="top" width="331"><p>WS WRNG [n]n</p></td></tr><tr><td valign="top" width="38"><p align="center">3</p></td><td valign="top" width="151"><p>Time of origin and validity period (M)</p></td><td valign="top" width="151"><p>Day and time of issue and, where applicable, validity period in UTC</p></td><td valign="top" width="331"><p>nnnnnn [VALID TL nnnnnn] <i>or</i></p><p>[VALID nnnnnn/nnnnnn]</p></td></tr><tr><td valign="top" width="38"><p align="center">4</p></td><td colspan="3" valign="top" width="633"><p>IF THE WIND SHEAR WARNING IS TO BE CANCELLED, SEE DETAILS AT THE END OF THE TEMPLATE.</p></td></tr><tr><td valign="top" width="38"><p align="center">5</p></td><td valign="top" width="151"><p>Phenomenon (M)</p></td><td valign="top" width="151"><p>Identification of the phenomenon and its location</p></td><td valign="top" width="331"><p>[MOD] <i>or</i> [SEV] WS IN APCH <i>or</i></p><p>[MOD] <i>or</i> [SEV] WS [APCH] RWYnnn <i>or</i></p><p>[MOD] <i>or</i> [SEV] WS IN CLIMB-OUT <i>or</i></p><p>[MOD] <i>or</i> [SEV] WS CLIMB-OUT RWYnnn <i>or</i></p><p>MBST IN APCH <i>or</i></p><p>MBST [APCH] RWYnnn <i>or</i></p><p>MBST IN CLIMB-OUT <i>or</i></p><p>MBST CLIMB-OUT RWYnnn</p></td></tr><tr><td valign="top" width="38"><p align="center">6</p></td><td valign="top" width="151"><p>Observed, reported or forecast phenomenon (M)</p></td><td valign="top" width="151"><p>Identification whether the phenomenon is observed or reported and expected to continue, or forecast</p></td><td valign="top" width="331"><p>REP AT nnnn nnnnnnnn <i>or</i></p><p>OBS [AT nnnn] <i>or</i></p><p>FCST</p></td></tr><tr><td valign="top" width="38"><p align="center">7</p></td><td valign="top" width="151"><p>Details of the phenomenon (C)</p></td><td valign="top" width="151"><p>Description of the phenomenon causing the issuance of the wind shear warning</p></td><td valign="top" width="331"><p>SFC WIND: nnn/nnKT nnnFT –</p><p>WIND: nnn/nnKT <i>or</i></p><p>nnKT LOSS nnNM (<i>or</i> nnKM) FNA RWYnn <i>or</i></p><p>nnKT GAIN nnNM (<i>or</i> nnKM) FNA RWYnn</p></td></tr><tr><td valign="top" width="38"><p align="center"></p></td><td valign="top" width="151"><p><i>OR</i></p></td><td valign="top" width="151"></td><td valign="top" width="331"></td></tr><tr><td valign="top" width="38"><p align="center">8</p></td><td valign="top" width="151"><p>Cancellation of wind shear warning</p></td><td valign="top" width="151"><p>Cancellation of wind shear warning referring to its identification</p></td><td valign="top" width="331"><p>CNL WS WRNG [n]n nnnnnn/nnnnnn</p></td></tr></table>
Appendix 4 Regulation (EU) 2021/1338 <table border="0" cellpadding="0" cellspacing="0" width="671"> <tr> <td valign="top" width="671"> <p><b>Template for wind shear warnings </b></p> <p><i>Key:</i></p> <p>M = inclusion mandatory;</p> <p>C = inclusion conditional, whenever applicable.</p> <p><i>Note 1:</i> The ranges and resolutions for the numerical elements included in wind shear warnings are shown in Appendix 8.</p> <p><i>Note 2:</i> The explanations for the abbreviations can be found in ICAO Doc 8400 <i>Procedures for Air Navigation Services — ICAO Abbreviations and Codes (PANS-ABC)</i>.</p> <p><i>Note 3: </i>Row numbers in the ‘Ref.’ column are included only for clarity and ease of reference, and are not part of the wind shear warning.</p> </td> </tr> </table> <table border="1" cellpadding="0" cellspacing="0" width="0"> <tr> <td valign="top" width="38"> <p align="center">Ref.</p> </td> <td valign="top" width="151"> <p align="center">Element</p> </td> <td valign="top" width="151"> <p align="center">Detailed content</p> </td> <td valign="top" width="331"> <p align="center">Template(s)</p> </td> </tr> <tr> <td valign="top" width="38"> <p align="center">1</p> </td> <td valign="top" width="151"> <p>Location indicator of the aerodrome (M)</p> </td> <td valign="top" width="151"> <p>Location indicator of the aerodrome</p> </td> <td valign="top" width="331"> <p>nnnn</p> </td> </tr> <tr> <td valign="top" width="38"> <p align="center">2</p> </td> <td valign="top" width="151"> <p>Identification of the type of message (M)</p> </td> <td valign="top" width="151"> <p>Type of message and sequence number</p> </td> <td valign="top" width="331"> <p>WS WRNG [n]n</p> </td> </tr> <tr> <td valign="top" width="38"> <p align="center">3</p> </td> <td valign="top" width="151"> <p>Time of origin and validity period (M)</p> </td> <td valign="top" width="151"> <p>Day and time of issue and, where applicable, validity period in UTC</p> </td> <td valign="top" width="331"> <p>nnnnnn [VALID TL nnnnnn] <i>or</i></p> <p>[VALID nnnnnn/nnnnnn]</p> </td> </tr> <tr> <td valign="top" width="38"> <p align="center">4</p> </td> <td colspan="3" valign="top" width="633"> <p>IF THE WIND SHEAR WARNING IS TO BE CANCELLED, SEE DETAILS AT THE END OF THE TEMPLATE.</p> </td> </tr> <tr> <td valign="top" width="38"> <p align="center">5</p> </td> <td valign="top" width="151"> <p>Phenomenon (M)</p> </td> <td valign="top" width="151"> <p>Identification of the phenomenon and its location</p> </td> <td valign="top" width="331"> <p>[MOD] <i>or</i> [SEV] WS IN APCH <i>or</i></p> <p>[MOD] <i>or</i> [SEV] WS [APCH] RWYnnn <i>or</i></p> <p>[MOD] <i>or</i> [SEV] WS IN CLIMB-OUT <i>or</i></p> <p>[MOD] <i>or</i> [SEV] WS CLIMB-OUT RWYnnn <i>or</i></p> <p>MBST IN APCH <i>or</i> </p> <p>MBST [APCH] RWYnnn <i>or</i></p> <p>MBST IN CLIMB-OUT <i>or</i></p> <p>MBST CLIMB-OUT RWYnnn</p> </td> </tr> <tr> <td valign="top" width="38"> <p align="center">6</p> </td> <td valign="top" width="151"> <p>Observed, reported or forecast phenomenon (M)</p> </td> <td valign="top" width="151"> <p>Identification whether the phenomenon is observed or reported and expected to continue, or forecast</p> </td> <td valign="top" width="331"> <p>REP AT nnnn nnnnnnnn <i>or</i></p> <p>OBS [AT nnnn] <i>or</i></p> <p>FCST</p> </td> </tr> <tr> <td valign="top" width="38"> <p align="center">7</p> </td> <td valign="top" width="151"> <p>Details of the phenomenon (C)</p> </td> <td valign="top" width="151"> <p>Description of the phenomenon causing the issuance of the wind shear warning</p> </td> <td valign="top" width="331"> <p>SFC WIND: nnn/nnKT nnnFT –</p> <p>WIND: nnn/nnKT <i>or</i></p> <p>nnKT LOSS nnNM (<i>or</i> nnKM) FNA RWYnn <i>or</i></p> <p>nnKT GAIN nnNM (<i>or</i> nnKM) FNA RWYnn</p> </td> </tr> <tr> <td valign="top" width="38"> <p align="center"></p> </td> <td valign="top" width="151"> <p><i>OR</i></p> </td> <td valign="top" width="151"> </td> <td valign="top" width="331"> </td> </tr> <tr> <td valign="top" width="38"> <p align="center">8</p> </td> <td valign="top" width="151"> <p>Cancellation of wind shear warning</p> </td> <td valign="top" width="151"> <p>Cancellation of wind shear warning referring to its identification</p> </td> <td valign="top" width="331"> <p>CNL WS WRNG [n]n nnnnnn/nnnnnn</p> </td> </tr> </table>