<?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_3858326266152617"><gml:boundedBy xsi:nil="true"/><hasMember><aixm:InstrumentApproachProcedure gml:id="IAP_1_3858326266152617"><gml:identifier codeSpace="urn:uuid:">fbc98596-95ae-4eb8-a078-5641eb1819d6</gml:identifier><gml:boundedBy xsi:nil="true"/><aixm:timeSlice><aixm:InstrumentApproachProcedureTimeSlice gml:id="IAP_TS_1_3858326266152617"><gml:validTime><gml:TimeInstant gml:id="IAP_TS_TI_1_3858326266152617"><gml:timePosition>2026-06-24T20:36:21.856Z</gml:timePosition></gml:TimeInstant></gml:validTime><aixm:interpretation>SNAPSHOT</aixm:interpretation><aixm:name>ILS OR LOC RWY 16L</aixm:name><aixm:approachType>ILS</aixm:approachType><aixm:extension><fns:ProcedureExtension gml:id="IAP_TS_EX1_3858326266152617"><fns:printableVersionNumber>0A</fns:printableVersionNumber><fns:legacyControlNumber>29797</fns:legacyControlNumber></fns:ProcedureExtension></aixm:extension></aixm:InstrumentApproachProcedureTimeSlice></aixm:timeSlice></aixm:InstrumentApproachProcedure></hasMember><hasMember><aixm:RunwayDirection gml:id="RWYDIR011_3858326266152617"><gml:identifier codeSpace="urn:uuid:">21c33143-caab-41a2-90e2-27f747e951fb</gml:identifier><gml:boundedBy xsi:nil="true"/><aixm:timeSlice><aixm:RunwayDirectionTimeSlice gml:id="RWYDIR01_TS011_3858326266152617"><gml:validTime><gml:TimeInstant gml:id="RWYDIR01_TS01_TI01_3858326266152617"><gml:timePosition>2026-06-24T20:36:21.856Z</gml:timePosition></gml:TimeInstant></gml:validTime><aixm:interpretation>SNAPSHOT</aixm:interpretation><aixm:designator>16L</aixm:designator><aixm:usedRunway xlink:href="#Runway_11_3858326266152617"/><aixm:extension><event:RunwayDirectionExtension gml:id="RDE_EVENT_11_3858326266152617"><event:theEvent xlink:href="#Event_1_3858326266152617"/></event:RunwayDirectionExtension></aixm:extension></aixm:RunwayDirectionTimeSlice></aixm:timeSlice></aixm:RunwayDirection></hasMember><hasMember><aixm:Runway gml:id="Runway_11_3858326266152617"><gml:identifier codeSpace="urn:uuid:">b567bb00-0c82-4b79-8646-8fa7c30e3e1f</gml:identifier><gml:boundedBy xsi:nil="true"/><aixm:timeSlice><aixm:RunwayTimeSlice gml:id="Runway_TS_11_3858326266152617"><gml:validTime><gml:TimeInstant gml:id="Runway_TS_TI_11_3858326266152617"><gml:timePosition>2026-06-24T20:36:21.856Z</gml:timePosition></gml:TimeInstant></gml:validTime><aixm:interpretation>SNAPSHOT</aixm:interpretation><aixm:designator>16L/34R</aixm:designator><aixm:extension><event:RunwayExtension gml:id="RE_EVENT_11_3858326266152617"><event:theEvent xlink:href="#Event_1_3858326266152617"/></event:RunwayExtension></aixm:extension></aixm:RunwayTimeSlice></aixm:timeSlice></aixm:Runway></hasMember><hasMember><aixm:InstrumentApproachProcedure gml:id="IAP2_3858326266152617"><gml:identifier codeSpace="urn:uuid:">660090ac-f138-48ea-a9d7-08a3d2db0ce4</gml:identifier><gml:boundedBy xsi:nil="true"/><aixm:timeSlice><aixm:InstrumentApproachProcedureTimeSlice gml:id="IAP2_TS_3858326266152617"><gml:validTime><gml:TimePeriod gml:id="IAP2_TS_TP_3858326266152617"><gml:beginPosition>2026-06-25T13:15:00.000Z</gml:beginPosition><gml:endPosition indeterminatePosition="unknown">2026-06-25T19:30:00.000Z</gml:endPosition></gml:TimePeriod></gml:validTime><aixm:interpretation>TEMPDELTA</aixm:interpretation><aixm:sequenceNumber>1</aixm:sequenceNumber><aixm:correctionNumber>0</aixm:correctionNumber><aixm:availability><aixm:ProcedureAvailability gml:id="IAP2_TS_TP_AVAIL_3858326266152617"><aixm:annotation><aixm:Note gml:id="IAP2_TS_TP_AVAIL_Note_1_3858326266152617"><aixm:propertyName>status</aixm:propertyName><aixm:purpose>DESCRIPTION</aixm:purpose><aixm:translatedNote><aixm:LinguisticNote gml:id="IAP2_TS_TP_AVAIL_L_1_3858326266152617"><aixm:note>Procedure NA</aixm:note></aixm:LinguisticNote></aixm:translatedNote></aixm:Note></aixm:annotation><aixm:annotation><aixm:Note gml:id="IAP2_TS_TP_AVAIL_Note_2_3858326266152617"><aixm:propertyName>additionalEquipment</aixm:propertyName><aixm:purpose>DESCRIPTION</aixm:purpose><aixm:translatedNote><aixm:LinguisticNote gml:id="IAP2_TS_TP_AVAIL_L_2_3858326266152617"><aixm:note>EXCEPT FOR ACFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS</aixm:note></aixm:LinguisticNote></aixm:translatedNote></aixm:Note></aixm:annotation><aixm:status>UNUSABLE</aixm:status></aixm:ProcedureAvailability></aixm:availability><aixm:annotation><aixm:Note gml:id="IAP2_TS_Note_2_3858326266152617"><aixm:propertyName>status</aixm:propertyName><aixm:purpose>DESCRIPTION</aixm:purpose><aixm:translatedNote><aixm:LinguisticNote gml:id="IAP2_TS_Note_L_2_3858326266152617"><aixm:note>EXCEPT FOR ACFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS</aixm:note></aixm:LinguisticNote></aixm:translatedNote></aixm:Note></aixm:annotation></aixm:InstrumentApproachProcedureTimeSlice></aixm:timeSlice></aixm:InstrumentApproachProcedure></hasMember><hasMember><aixm:Navaid gml:id="N_1_3858326266152617"><gml:identifier codeSpace="urn:uuid:">316ab08a-fc95-4171-8e4a-2df9e515d528</gml:identifier><gml:boundedBy xsi:nil="true"/><aixm:timeSlice><aixm:NavaidTimeSlice gml:id="N_TS_1_3858326266152617"><gml:validTime><gml:TimeInstant gml:id="N_TS_TI_1_1_3858326266152617"><gml:timePosition>2026-06-24T20:36:21.856Z</gml:timePosition></gml:TimeInstant></gml:validTime><aixm:interpretation>SNAPSHOT</aixm:interpretation><aixm:type>VORTAC</aixm:type><aixm:designator>CSN</aixm:designator></aixm:NavaidTimeSlice></aixm:timeSlice><aixm:timeSlice><aixm:NavaidTimeSlice gml:id="N_TS2_1_3858326266152617"><gml:validTime><gml:TimePeriod gml:id="N_TS2_TP_1_3858326266152617"><gml:beginPosition>2026-06-25T13:15:00.000Z</gml:beginPosition><gml:endPosition indeterminatePosition="unknown">2026-06-25T19:30:00.000Z</gml:endPosition></gml:TimePeriod></gml:validTime><aixm:interpretation>TEMPDELTA</aixm:interpretation><aixm:sequenceNumber>1</aixm:sequenceNumber><aixm:correctionNumber>0</aixm:correctionNumber><aixm:availability><aixm:NavaidOperationalStatus gml:id="N_TS2_NOS_1_3858326266152617"><aixm:operationalStatus>UNSERVICEABLE</aixm:operationalStatus></aixm:NavaidOperationalStatus></aixm:availability></aixm:NavaidTimeSlice></aixm:timeSlice></aixm:Navaid></hasMember><hasMember><aixm:AirportHeliport gml:id="Airport_1_3858326266152617"><gml:identifier codeSpace="urn:uuid:">055cdfb5-2709-432e-a5b0-3d25cd3ad1c4</gml:identifier><gml:boundedBy xsi:nil="true"/><aixm:timeSlice><aixm:AirportHeliportTimeSlice gml:id="Airport_TS_1_3858326266152617"><gml:validTime><gml:TimeInstant gml:id="Airport_TS_TI_1_3858326266152617"><gml:timePosition>2026-06-24T20:36:21.856Z</gml:timePosition></gml:TimeInstant></gml:validTime><aixm:interpretation>SNAPSHOT</aixm:interpretation><aixm:designator>HEF</aixm:designator><aixm:name>MANASSAS RGNL/HARRY P DAVIS FLD</aixm:name><aixm:locationIndicatorICAO>KHEF</aixm:locationIndicatorICAO><aixm:servedCity><aixm:City gml:id="Airport_City_1_3858326266152617"><aixm:name>WASHINGTON</aixm:name></aixm:City></aixm:servedCity><aixm:ARP><aixm:ElevatedPoint gml:id="EP01_3858326266152617" srsDimension="2" srsName="urn:ogc:def:crs:EPSG::4326"><gml:pos>38.7210230833333 -77.5151011944444</gml:pos></aixm:ElevatedPoint></aixm:ARP><aixm:extension><fns:AirportHeliportExtension gml:id="AHE_EVENT_2_3858326266152617"><fns:stateTerritory>DC</fns:stateTerritory></fns:AirportHeliportExtension></aixm:extension><aixm:extension><event:AirportHeliportExtension gml:id="AHE_EVENT_1_3858326266152617"><event:theEvent xlink:href="#Event_1_3858326266152617"/></event:AirportHeliportExtension></aixm:extension></aixm:AirportHeliportTimeSlice></aixm:timeSlice></aixm:AirportHeliport></hasMember><hasMember><event:Event gml:id="Event_1_3858326266152617"><gml:identifier codeSpace="urn:uuid:">e4b366df-979b-4e5e-a632-8afa5c376912</gml:identifier><gml:boundedBy xsi:nil="true"/><event:timeSlice><event:EventTimeSlice gml:id="Event_TS_1_3858326266152617"><gml:validTime><gml:TimePeriod gml:id="Event_TS_TP_1_3858326266152617"><gml:beginPosition>2026-06-25T13:15:00.000Z</gml:beginPosition><gml:endPosition indeterminatePosition="unknown">2026-06-25T19:30:00.000Z</gml:endPosition></gml:TimePeriod></gml:validTime><aixm:interpretation>BASELINE</aixm:interpretation><aixm:sequenceNumber>1</aixm:sequenceNumber><aixm:correctionNumber>0</aixm:correctionNumber><event:scenario>802</event:scenario><event:textNOTAM><event:NOTAM gml:id="NOTAM_1_3858326266152617"><event:number>520</event:number><event:year>2026</event:year><event:type>N</event:type><event:issued>2026-06-24T20:35:00.000Z</event:issued><event:location>HEF</event:location><event:effectiveStart>202606251315</event:effectiveStart><event:effectiveEnd>202606251930EST</event:effectiveEnd><event:text>IAP MANASSAS RGNL/HARRY P DAVIS FLD, WASHINGTON, DC.
ILS OR LOC RWY 16L, ORIG-A...
PROCEDURE NA EXCEPT FOR ACFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS.
CSN VORTAC OUT OF SERVICE AND LDN VOR OUT OF SERVICE.
2606251315-2606251930EST</event:text><event:translation><event:NOTAMTranslation gml:id="NT01_3858326266152617"><event:type>LOCAL_FORMAT</event:type><event:simpleText>!FDC 6/0520 HEF IAP MANASSAS RGNL/HARRY P DAVIS FLD, WASHINGTON, DC.
ILS OR LOC RWY 16L, ORIG-A...
PROCEDURE NA EXCEPT FOR ACFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS.
CSN VORTAC OUT OF SERVICE AND LDN VOR OUT OF SERVICE.
2606251315-2606251930EST</event:simpleText></event:NOTAMTranslation></event:translation><event:translation><event:NOTAMTranslation gml:id="NT02_3858326266152617"><event:type>OTHER:ICAO</event:type><event:formattedText><html:div xmlns:html="http://www.w3.org/1999/xhtml">Q) KZDC/QPIAU/I/NBO/A/000/999/3843N07730W005
A) KHEF
B) 2606242031
C) 2702032031EST
E) HEF MANASSAS RGNL/HARRY P DAVIS FLD, WASHINGTON, DC.
ILS OR LOC RWY 16L, ORIG-A...
PROCEDURE NA EXCEPT FOR ACFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS.
CSN VORTAC OUT OF SERVICE AND LDN VOR OUT OF SERVICE.</html:div></event:formattedText></event:NOTAMTranslation></event:translation></event:NOTAM></event:textNOTAM><event:extension><fnse:EventExtension gml:id="ext_01_3858326266152617"><fnse:classification>FDC</fnse:classification><fnse:accountId>FDC</fnse:accountId><fnse:airportname>MANASSAS RGNL/HARRY P DAVIS FLD</fnse:airportname><fnse:lastUpdated>2026-06-24T20:35:00.000Z</fnse:lastUpdated><fnse:icaoLocation>KHEF</fnse:icaoLocation></fnse:EventExtension></event:extension></event:EventTimeSlice></event:timeSlice></event:Event></hasMember></AIXMBasicMessage>