Light Transport
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 12
Workload
ATC Issue All Types; Deviation - Altitude Overshoot; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Issued New Clearance; Flight Crew Returned To Clearance
Procedure; Airspace Structure; Human Factors
Aircraft X was on the STAR going into ZZZ airport. I descended him from 5;000 to 3;000 feet. I turned him base while he was descending to 3;000 feet. When I turned him on the approach he descended through 3;000 to 2;700 feet. The MVA (Minimum Vectoring Altitude) in that area is 3;000 feet. I told him to maintain 3;000 when I cleared him for the approach. He climbed back up to 3;000 feet.
TRACON Controller reported an aircraft descended below its assigned altitude and flew below the Minimum Vectoring Altitude.