<?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_5873705600379660"><gml:boundedBy xsi:nil="true"/><hasMember><aixm:ObstacleArea gml:id="OA01_5873705600379660"><gml:identifier codeSpace="urn:uuid:">1c9c3d80-8db3-43a9-ba80-140cadb9e270</gml:identifier><gml:boundedBy xsi:nil="true"/><aixm:timeSlice><aixm:ObstacleAreaTimeSlice gml:id="OA01_TS01_5873705600379660"><gml:validTime><gml:TimePeriod 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gml:id="VerticalStructureTimeSliceType_10_5873705600379660"><gml:validTime><gml:TimePeriod gml:id="TimePeriodType_11_5873705600379660"><gml:beginPosition>2026-05-09T12:00:00.000Z</gml:beginPosition><gml:endPosition>2026-05-09T20:00:00.000Z</gml:endPosition></gml:TimePeriod></gml:validTime><aixm:interpretation>TEMPDELTA</aixm:interpretation><aixm:sequenceNumber>1</aixm:sequenceNumber><aixm:correctionNumber>0</aixm:correctionNumber><aixm:annotation><aixm:Note gml:id="NOTES_2_5873705600379660"><aixm:propertyName>operationalStatus</aixm:propertyName><aixm:purpose>DESCRIPTION</aixm:purpose><aixm:translatedNote><aixm:LinguisticNote gml:id="NOTES_LN_2_5873705600379660"><aixm:note>0.5 NM</aixm:note></aixm:LinguisticNote></aixm:translatedNote></aixm:Note></aixm:annotation><aixm:annotation><aixm:Note gml:id="NOTES_3_5873705600379660"><aixm:propertyName>operationalStatus</aixm:propertyName><aixm:purpose>DESCRIPTION</aixm:purpose><aixm:translatedNote><aixm:LinguisticNote gml:id="NOTES_LN_3_5873705600379660"><aixm:note>SSW_SIDE</aixm:note></aixm:LinguisticNote></aixm:translatedNote></aixm:Note></aixm:annotation><aixm:lightingAvailability><aixm:VerticalStructureLightingStatus gml:id="VerticalStructureLightingStatusType_12_5873705600379660"><aixm:annotation><aixm:Note gml:id="DOD_Note_1_5873705600379660"><aixm:propertyName>operationalStatus</aixm:propertyName><aixm:purpose>REMARK</aixm:purpose><aixm:translatedNote><aixm:LinguisticNote gml:id="DOD_LN_1_5873705600379660"><aixm:note>BLDG 2199 (VQ4)</aixm:note></aixm:LinguisticNote></aixm:translatedNote></aixm:Note></aixm:annotation><aixm:status>OTHER:FLAGGED_UNLIGHTED</aixm:status></aixm:VerticalStructureLightingStatus></aixm:lightingAvailability><aixm:extension><event:VerticalStructureExtension gml:id="VSE_1_5873705600379660"><event:theEvent xlink:href="#Event_1_5873705600379660"/></event:VerticalStructureExtension></aixm:extension></aixm:VerticalStructureTimeSlice></aixm:timeSlice><aixm:timeSlice><aixm:VerticalStructureTimeSlice gml:id="VerticalStructureTimeSliceType_13_5873705600379660"><gml:validTime><gml:TimeInstant gml:id="TimeInstantType_14_5873705600379660"><gml:timePosition>2026-05-05T17:02:23.418Z</gml:timePosition></gml:TimeInstant></gml:validTime><aixm:interpretation>SNAPSHOT</aixm:interpretation><aixm:type>CRANE</aixm:type><aixm:part><aixm:VerticalStructurePart gml:id="VerticalStructurePartType_15_5873705600379660"><aixm:verticalExtent uom="FT">79</aixm:verticalExtent><aixm:horizontalProjection_location><aixm:ElevatedPoint gml:id="ElevatedPointType_16_5873705600379660" srsDimension="2" srsName="urn:ogc:def:crs:EPSG::4326"><gml:pos>38.276389 -76.427222</gml:pos></aixm:ElevatedPoint></aixm:horizontalProjection_location></aixm:VerticalStructurePart></aixm:part></aixm:VerticalStructureTimeSlice></aixm:timeSlice></aixm:VerticalStructure></hasMember><hasMember><aixm:AirportHeliport gml:id="Airport_1_5873705600379660"><gml:identifier codeSpace="urn:uuid:">86d08690-1686-4221-80e9-e3f6da2bafc3</gml:identifier><gml:boundedBy xsi:nil="true"/><aixm:timeSlice><aixm:AirportHeliportTimeSlice gml:id="Airport_TS_1_5873705600379660"><gml:validTime><gml:TimeInstant gml:id="Airport_TS_TI_1_5873705600379660"><gml:timePosition>2026-05-05T17:02:23.418Z</gml:timePosition></gml:TimeInstant></gml:validTime><aixm:interpretation>SNAPSHOT</aixm:interpretation><aixm:designator>NHK</aixm:designator><aixm:name>PATUXENT RIVER NAS (TRAPNELL FLD)</aixm:name><aixm:locationIndicatorICAO>KNHK</aixm:locationIndicatorICAO><aixm:ARP><aixm:ElevatedPoint gml:id="EP01_5873705600379660" srsDimension="2" srsName="urn:ogc:def:crs:EPSG::4326"><gml:pos>38.2863336111111 -76.4099713888889</gml:pos></aixm:ElevatedPoint></aixm:ARP><aixm:extension><event:AirportHeliportExtension gml:id="AHE_EVENT_1_5873705600379660"><event:theEvent xlink:href="#Event_1_5873705600379660"/></event:AirportHeliportExtension></aixm:extension></aixm:AirportHeliportTimeSlice></aixm:timeSlice></aixm:AirportHeliport></hasMember><hasMember><event:Event gml:id="Event_1_5873705600379660"><gml:identifier codeSpace="urn:uuid:">06919752-c949-4e78-be6b-7076ae1a24c0</gml:identifier><gml:boundedBy xsi:nil="true"/><event:timeSlice><event:EventTimeSlice gml:id="Event_TS_1_5873705600379660"><gml:validTime><gml:TimePeriod gml:id="Event_TS_TP_1_5873705600379660"><gml:beginPosition>2026-05-09T12:00:00.000Z</gml:beginPosition><gml:endPosition>2026-05-09T20:00:00.000Z</gml:endPosition></gml:TimePeriod></gml:validTime><aixm:interpretation>BASELINE</aixm:interpretation><aixm:sequenceNumber>1</aixm:sequenceNumber><aixm:correctionNumber>0</aixm:correctionNumber><event:scenario>462</event:scenario><event:textNOTAM><event:NOTAM gml:id="NOTAM_1_5873705600379660"><event:series>M</event:series><event:number>498</event:number><event:year>2026</event:year><event:type>N</event:type><event:issued>2026-05-05T10:01:00.000Z</event:issued><event:affectedFIR>ZDC</event:affectedFIR><event:selectionCode>QOBXX</event:selectionCode><event:traffic>IV</event:traffic><event:purpose>M</event:purpose><event:scope>AE</event:scope><event:minimumFL>000</event:minimumFL><event:maximumFL>999</event:maximumFL><event:coordinates>3817N07624W</event:coordinates><event:radius>5</event:radius><event:location>NHK</event:location><event:effectiveStart>202605091200</event:effectiveStart><event:effectiveEnd>202605092000</event:effectiveEnd><event:text>OBSTACLE CRANE 381635N0762538W&#13;
 (.5NM SOUTH SOUTHWEST KNHK) UNKNOWN MSL&#13;
 (79FT AGL) FLAGGED AND UNLIGHTED BLDG 2199 (VQ4)</event:text><event:translation><event:NOTAMTranslation gml:id="NT01_5873705600379660"><event:type>LOCAL_FORMAT</event:type><event:simpleText>!KNHK M0498/26 NHK OBST CRANE 381635N0762538W (.5NM SSW NHK) UNKNOWN MSL&#13;
 (79FT AGL) FLAGGED AND NOT LGTD BLDG 2199 (VQ4) 2605091200-2605092000</event:simpleText></event:NOTAMTranslation></event:translation><event:translation><event:NOTAMTranslation gml:id="NT02_5873705600379660"><event:type>OTHER:ICAO</event:type><event:formattedText><html:div xmlns:html="http://www.w3.org/1999/xhtml">M0498/26 NOTAMN &#13;
Q) ZDC/QOBXX/IV/M/AE/000/999/3817N07624W005 &#13;
A) KNHK &#13;
B) 2605091200 &#13;
C) 2605092000 &#13;
E) OBSTACLE CRANE 381635N0762538W&#13;
 (.5NM SOUTH SOUTHWEST KNHK) UNKNOWN MSL&#13;
 (79FT AGL) FLAGGED AND UNLIGHTED BLDG 2199 (VQ4)</html:div></event:formattedText></event:NOTAMTranslation></event:translation></event:NOTAM></event:textNOTAM><event:extension><fnse:EventExtension gml:id="ext_01_5873705600379660"><fnse:classification>MIL</fnse:classification><fnse:accountId>KNHK</fnse:accountId><fnse:airportname>PATUXENT RIVER NAS (TRAPNELL FLD)</fnse:airportname><fnse:lastUpdated>2026-05-05T17:02:00.000Z</fnse:lastUpdated><fnse:canceled>2026-05-05T17:02:00.000Z</fnse:canceled><fnse:icaoLocation>KNHK</fnse:icaoLocation></fnse:EventExtension></event:extension></event:EventTimeSlice></event:timeSlice></event:Event></hasMember></AIXMBasicMessage>