As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ABOUT 1/2 WAY THRU THE FLIGHT, CREW NOTICED A BURNING SMELL IN THE CABIN. NO VISUAL JUST A SMELL. AFTER ABOUT 10 MINUTES THE SMELL WENT AWAY. CREW COMPLETED FLIGHT TO ORIGINAL DESTINATION. ONCE TRANSFERRED TO POTOMAC APPROACH, APPROACH DECLARED EMERGENCY. CREW NOTIFIED THEM THAT THEY HAD EVERYTHING UNDER CONTROL. AIRCRAFT LANDED WITHOUT ANY ISSUES.