Small Transport; Low Wing; 2 Turbojet Eng
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 21
Human-Machine Interface; Situational Awareness
ATC Issue All Types; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter CFTT / CFIT
Airspace Structure; Chart Or Publication; Human Factors
Aircraft X was handed off at 4;000 feet direct to the initial approach fix. The weather was good for a visual approach so I queried the pilot if he would prefer a visual approach and offered a 6 mile straight in. The pilot concurred and I initiated a descent to 2;100 feet. I did not check the (minimum vectoring area (MVA) map and believed with the descent the pilot would enter the 2;100 foot MVA west of the airport. As the aircraft left 2;600 feet the adjacent facility Controller advised me of a low altitude alert. I was not receiving an alert and mistakenly believed they were getting a false alert due to rate of descent. Shortly after I checked the MVA map and noticed the aircraft was just leaving a 3;000 foot MVA area level at 2;100 feet. Three things contributed to this; two directly under my control: I believed the edge of the 3;000 foot MVA shelf was further north than it was. I should have rechecked the MVA map before issuing a descent. Having had false low altitude alerts before; I believed the other Controller was getting a false alarm. I should have immediately went to the MVA map. And we never received a low altitude alert.
FAY TRACON Controller reported they descended an aircraft to an altitude below the Minimum Vectoring Altitude.