Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 4
Situational Awareness; Distraction; Confusion; Troubleshooting
ATC Issue All Types; Airspace Violation All Types; Deviation - Altitude Excursion From Assigned Altitude; Deviation - Track / Heading All Types; Inflight Event / Encounter Weather / Turbulence; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Provided Assistance; Flight Crew Requested ATC Assistance / Clarification
Weather; Procedure; Human Factors
Aircraft X entered BTV radar east airspace from the west at 9000 ft. I informed the pilot to advise me of any approach request he might have and to descend and maintain 7000. Aircraft X requested lower altitude after a few minutes due to light ice accumulating. I then gave him the MVA altitude of 6500. I noticed he was not able to maintain his altitude and I gave him a further descent and a vector away from terrain depicted on the EOVM (Emergency Obstruction Video Map). I then noticed Aircraft X was turning towards terrain northwest bound and instructed him to fly northeast bound on a heading of 040 and asked 'how he was doing'. Aircraft X was able to get below the clouds and out of icing conditions away from terrain shortly thereafter.
BTV TRACON Controller reported that an aircraft being vectored at the MVA was not able to maintain altitude due to icing.