<?xml version="1.0" encoding="UTF-8" standalone="yes"?><AIXMBasicMessage xmlns="http://www.aixm.aero/schema/5.1/message" xmlns:aixm="http://www.aixm.aero/schema/5.1" xmlns:event="http://www.aixm.aero/schema/5.1/event" xmlns:fns="urn:us.gov.dot.faa.aim.fns" xmlns:fnse="http://www.aixm.aero/schema/5.1/extensions/FAA/FNSE" xmlns:gco="http://www.isotc211.org/2005/gco" xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:gts="http://www.isotc211.org/2005/gts" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" gml:id="NMS_ID_1776249139609277"><gml:boundedBy xsi:nil="true"/><hasMember><event:Event gml:id="Event_1_1776249139609277"><gml:identifier codeSpace="urn:uuid:">14a0b5f7-e97f-415a-9ef5-55914c3b0cda</gml:identifier><gml:boundedBy xsi:nil="true"/><event:timeSlice><event:EventTimeSlice gml:id="Event_TS_1_1776249139609277"><gml:validTime><gml:TimePeriod gml:id="Event_TS_TP_1_1776249139609277"><gml:beginPosition>2026-04-28T09:00:00.000Z</gml:beginPosition><gml:endPosition>2026-04-30T22:59:00.000Z</gml:endPosition></gml:TimePeriod></gml:validTime><aixm:interpretation>BASELINE</aixm:interpretation><aixm:sequenceNumber>1</aixm:sequenceNumber><aixm:correctionNumber>0</aixm:correctionNumber><event:scenario>6000</event:scenario><event:textNOTAM><event:NOTAM gml:id="NOTAM_1_1776249139609277"><event:series>H</event:series><event:number>1686</event:number><event:year>2026</event:year><event:type>N</event:type><event:issued>2026-04-15T10:31:00.000Z</event:issued><event:affectedFIR>EGTT</event:affectedFIR><event:selectionCode>QWULW</event:selectionCode><event:traffic>IV</event:traffic><event:purpose>BO</event:purpose><event:scope>W</event:scope><event:minimumFL>000</event:minimumFL><event:maximumFL>999</event:maximumFL><event:coordinates>5159N00117W</event:coordinates><event:radius>002</event:radius><event:location>EGTT</event:location><event:effectiveStart>202604280900</event:effectiveStart><event:effectiveEnd>202604302259</event:effectiveEnd><event:schedule>0900-2259</event:schedule><event:text>UAS SWARM WITH LASER DISPLAY OPR WI 1NM RADIUS OF 515906N 0011720W
(CLIFTON, BANBURY). SWARM MADE UP OF 350 UAS WITH PYRO. MAX HGT
600FT AGL. FOR INFO 07547 155440. AR-2026-2877/03.</event:text><event:lowerLimit>SFC</event:lowerLimit><event:upperLimit>UNL</event:upperLimit><event:translation><event:NOTAMTranslation gml:id="NT02_1776249139609277"><event:type>OTHER:ICAO</event:type><event:formattedText><html:div xmlns:html="http://www.w3.org/1999/xhtml">&lt;pre&gt;
H1686/26 NOTAMN
Q) EGTT/QWULW/IV/BO /W /000/999/5159N00117W002
A) EGTT B) 2604280900 C) 2604302259
D) 0900-2259
E) UAS SWARM WITH LASER DISPLAY OPR WI 1NM RADIUS OF 515906N 0011720W
(CLIFTON, BANBURY). SWARM MADE UP OF 350 UAS WITH PYRO. MAX HGT
600FT AGL. FOR INFO 07547 155440. AR-2026-2877/03.
F) SFC G) UNL
&lt;/pre&gt;</html:div></event:formattedText></event:NOTAMTranslation></event:translation></event:NOTAM></event:textNOTAM><event:extension><fnse:EventExtension gml:id="ext_01_1776249139609277"><fnse:classification>INTL</fnse:classification><fnse:accountId>EGGNYNYX</fnse:accountId><fnse:airportname>LONDON ATCC</fnse:airportname><fnse:originID>EUECYIYN</fnse:originID><fnse:lastUpdated>2026-04-15T10:31:00.000Z</fnse:lastUpdated><fnse:icaoLocation>EGTT</fnse:icaoLocation></fnse:EventExtension></event:extension></event:EventTimeSlice></event:timeSlice></event:Event></hasMember></AIXMBasicMessage>