Small Transport
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 8
Communication Breakdown; Situational Awareness
ATC Issue All Types; Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Other / Unknown; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Issued New Clearance
Airspace Structure; Aircraft; Human Factors
Aircraft X was IFR to ZZZ1 trying to beat a line of severe weather to the airport. He went around at ZZZ1 and I cleared him to ZZZ at the pilot's request. I assigned a vector and altitude to put him in sequence and then handed him off to the Final Controller for the rest. Final put Aircraft X on a base turn heading 280. The pilot lost communications and flew into a 2200 foot MVA (Minimum Vectoring Altitude); then a 3000 foot MVA and turned on his own to the south and climbed to 2500 feet in a 2600 foot MVA. Before hitting all the MVAs; we tried literally everything. We tried Center; other sectors and adjacent airport Towers frequencies; tried Guard and got no response at all. Instructions to climb immediately to 3000 feet were even issued on guard before the MVA violation. Eventually; he checked on with the Tower and Tower climbed him to 3000 feet and worked him in so he wouldn't have to change frequencies. He landed safely. I found out this morning that the pilot had a stuck mic and was the only one who could fly the plane. He was having to reach over to the copilot seat to use the mic for communications.
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TRACON controllers reported an aircraft on an assigned heading went NORDO and flew below the Minimum Vectoring Altitude.