<?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_1776414092877709"><gml:boundedBy xsi:nil="true"/><hasMember><event:Event gml:id="Event_1_1776414092877709"><gml:identifier codeSpace="urn:uuid:">f051ae63-f379-4593-8694-1702e667fd0a</gml:identifier><gml:boundedBy xsi:nil="true"/><event:timeSlice><event:EventTimeSlice gml:id="Event_TS_1_1776414092877709"><gml:validTime><gml:TimePeriod gml:id="Event_TS_TP_1_1776414092877709"><gml:beginPosition>2026-04-16T17:00:00.000Z</gml:beginPosition><gml:endPosition>2026-04-17T02:00:00.000Z</gml:endPosition></gml:TimePeriod></gml:validTime><aixm:interpretation>BASELINE</aixm:interpretation><aixm:sequenceNumber>1</aixm:sequenceNumber><aixm:correctionNumber>0</aixm:correctionNumber><event:scenario>5000</event:scenario><event:textNOTAM><event:NOTAM gml:id="NOTAM_1_1776414092877709"><event:series>M</event:series><event:number>371</event:number><event:year>2026</event:year><event:type>N</event:type><event:issued>2026-04-16T16:52:00.000Z</event:issued><event:affectedFIR>KZDC</event:affectedFIR><event:selectionCode>QXXXX</event:selectionCode><event:traffic>IV</event:traffic><event:purpose>NBO</event:purpose><event:scope>A</event:scope><event:minimumFL>000</event:minimumFL><event:maximumFL>999</event:maximumFL><event:coordinates>3704N07621W</event:coordinates><event:radius>005</event:radius><event:location>LFI</event:location><event:effectiveStart>202604161700</event:effectiveStart><event:effectiveEnd>202604170200</event:effectiveEnd><event:text>UNTETHERED UNMANNED ACFT WITHOUT REMOTE ID AT NASA LANGLEY
 RESEARCH CENTER, HAMPTON VIRGINIA, SURFACE TO 400 FEET WITHIN 0.75
 NAUTICAL MILE RADIUS OF 37° 06' 13.83"N - 76° 22' 48.57"W.</event:text><event:translation><event:NOTAMTranslation gml:id="NT02_1776414092877709"><event:type>OTHER:ICAO</event:type><event:formattedText><html:div xmlns:html="http://www.w3.org/1999/xhtml">&lt;pre&gt;
M0371/26 NOTAMN 
Q) ZDC/QXXXX/IV/NBO/A/000/999/3704N07621W005 A) KLFI B) 2604161700 C) 2604170200
E) UNTETHERED UNMANNED ACFT WITHOUT REMOTE ID AT NASA LANGLEY
 RESEARCH CENTER, HAMPTON VIRGINIA, SURFACE TO 400 FEET WITHIN 0.75
 NAUTICAL MILE RADIUS OF 37° 06&amp;apos; 13.83&amp;quot;N - 76° 22&amp;apos; 48.57&amp;quot;W.
&lt;/pre&gt;</html:div></event:formattedText></event:NOTAMTranslation></event:translation></event:NOTAM></event:textNOTAM><event:extension><fnse:EventExtension gml:id="ext_01_1776414092877709"><fnse:classification>MIL</fnse:classification><fnse:accountId>KLFI</fnse:accountId><fnse:airportname>LANGLEY AFB</fnse:airportname><fnse:originID>KLFI</fnse:originID><fnse:lastUpdated>2026-04-17T08:20:00.000Z</fnse:lastUpdated><fnse:canceled>2026-04-17T02:00:00.000Z</fnse:canceled><fnse:icaoLocation>KLFI</fnse:icaoLocation></fnse:EventExtension></event:extension></event:EventTimeSlice></event:timeSlice></event:Event></hasMember></AIXMBasicMessage>