<?xml version="1.0" encoding="UTF-8" standalone="yes"?><message:AIXMBasicMessage xmlns:message="http://www.aixm.aero/schema/5.1/message" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:aixm="http://www.aixm.aero/schema/5.1" xmlns:event="http://www.aixm.aero/schema/5.1/event" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:fns="urn:us.gov.dot.faa.aim.fns" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:html="http://www.w3.org/1999/xhtml" xmlns:fnse="http://www.aixm.aero/schema/5.1/extensions/FAA/FNSE" gml:id="NMS_ID_1776693934953184"><message:hasMember><event:Event gml:id="Event_1_1776693934953184"><gml:identifier codeSpace="urn:uuid:">91109fca-0e43-45eb-87a1-89320ed04fec</gml:identifier><event:timeSlice><event:EventTimeSlice gml:id="Event_TS_1_1776693934953184"><gml:validTime><gml:TimePeriod gml:id="Event_TS_TP_1_1776693934953184"><gml:beginPosition>2026-04-20T14:05:00.000Z</gml:beginPosition><gml:endPosition>2026-04-23T14:05:00.000Z</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_1776693934953184"><event:series>A</event:series><event:number>2280</event:number><event:year>2026</event:year><event:type>C</event:type><event:issued>2026-04-20T14:05:00.000Z</event:issued><event:referredSeries>A</event:referredSeries><event:referredNumber>0508</event:referredNumber><event:referredYear>2026</event:referredYear><event:affectedFIR>KZDC</event:affectedFIR><event:selectionCode>QPICH</event:selectionCode><event:traffic>I</event:traffic><event:purpose>NBO</event:purpose><event:scope>A</event:scope><event:minimumFL>000</event:minimumFL><event:maximumFL>999</event:maximumFL><event:location>IAD</event:location><event:effectiveStart>202604201405</event:effectiveStart><event:effectiveEnd>202604231405</event:effectiveEnd><event:text>IAD WASHINGTON DULLES INTL, WASHINGTON, DC.&#xA;RNAV (GPS) Y RWY 19R, AMDT 1...&#xA;LNAV MDA 900/HAT 622 ALL CATS. VISIBILITY CATS C/D 1 3/8. CIRCLING CAT C MDA 960/HAA 648. VDP 1.73NM TO RWY 19R. FOR INOPERATIVE ALS, INCREASE S-LOC 19R CAT C/D VISIBILITY TO 1 3/4. TEMPORARY CRANE 644 MSL 2.0NM NORTH OF RWY 19R (2024-AEA-14005 THRU 14012-OE). TEMPORARY CRANE 506FT MSL 2.7NM NORTH OF RWY 19R (2025-AEA-1013-OE). TEMPORARY CRANE 518FT MSL 1.84 NM NORTH OF RWY 19C (2025-AEA-5900 THRU 5903-OE). TEMPORARY CRANE 608FT MSL 2.17NM NORTH OF RWY 19R(2024-AEA-10560 THRU 10563-OE). CANCELED</event:text><event:translation><event:NOTAMTranslation gml:id="NT_1_1776693934953184"><event:type>OTHER:ICAO</event:type><event:formattedText><html:div>A2280/26 NOTAMC A0508/26 Q) KZDC/QPICH/I/NBO/A/000/999/ A) KIAD B) 2604201405 E) IAD WASHINGTON DULLES INTL, WASHINGTON, DC. RNAV (GPS) Y RWY 19R, AMDT 1... LNAV MDA 900/HAT 622 ALL CATS. VISIBILITY CATS C/D 1 3/8. CIRCLING CAT C MDA 960/HAA 648. VDP 1.73NM TO RWY 19R. FOR INOPERATIVE ALS, INCREASE S-LOC 19R CAT C/D VISIBILITY TO 1 3/4. TEMPORARY CRANE 644 MSL 2.0NM NORTH OF RWY 19R (2024-AEA-14005 THRU 14012-OE). TEMPORARY CRANE 506FT MSL 2.7NM NORTH OF RWY 19R (2025-AEA-1013-OE). TEMPORARY CRANE 518FT MSL 1.84 NM NORTH OF RWY 19C (2025-AEA-5900 THRU 5903-OE). TEMPORARY CRANE 608FT MSL 2.17NM NORTH OF RWY 19R(2024-AEA-10560 THRU 10563-OE). CANCELED</html:div></event:formattedText></event:NOTAMTranslation></event:translation></event:NOTAM></event:textNOTAM><event:extension><fnse:EventExtension gml:id="FNSE_1_1776693934953184"><fnse:classification>INTL</fnse:classification><fnse:accountId>KIAD</fnse:accountId><fnse:airportname>WASHINGTON DULLES INTL</fnse:airportname><fnse:qline>KZDC/QPICH/I/NBO/A/000/999/</fnse:qline><fnse:lastUpdated>2026-04-20T14:05:00.000Z</fnse:lastUpdated><fnse:icaoLocation>KIAD</fnse:icaoLocation></fnse:EventExtension></event:extension></event:EventTimeSlice></event:timeSlice></event:Event></message:hasMember><message:hasMember><aixm:AirportHeliport gml:id="AH_1_1776693934953184"><gml:identifier codeSpace="urn:uuid:">dfd0fb62-7e11-466b-9198-d789cc3bbca4</gml:identifier><aixm:timeSlice><aixm:AirportHeliportTimeSlice gml:id="AH_TS_1_1776693934953184"><gml:validTime><gml:TimeInstant gml:id="AH_TS_TI_1_1776693934953184"><gml:timePosition>2026-04-20T14:05:00.000Z</gml:timePosition></gml:TimeInstant></gml:validTime><aixm:interpretation>SNAPSHOT</aixm:interpretation><aixm:designator>IAD</aixm:designator><aixm:name>WASHINGTON DULLES INTL</aixm:name><aixm:locationIndicatorICAO>KIAD</aixm:locationIndicatorICAO><aixm:ARP><aixm:ElevatedPoint gml:id="EP_1_1776693934953184" srsName="urn:ogc:def:crs:EPSG::4326" srsDimension="2"><gml:pos>38.947456 -77.459929</gml:pos></aixm:ElevatedPoint></aixm:ARP><aixm:extension><event:AirportHeliportExtension gml:id="AHE_EVENT_1_1776693934953184"><event:theEvent xlink:href="#Event_1_1776693934953184"></event:theEvent></event:AirportHeliportExtension></aixm:extension></aixm:AirportHeliportTimeSlice></aixm:timeSlice></aixm:AirportHeliport></message:hasMember></message:AIXMBasicMessage>