McDonnell Douglas Undifferentiated or Other Model
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 1
Situational Awareness; Human-Machine Interface; Communication Breakdown
ATC Issue All Types; Deviation - Altitude Overshoot; Deviation / Discrepancy - Procedural Published Material / Policy; 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
Chart Or Publication; Procedure; Human Factors; Airspace Structure
I descended Aircraft X to 2;600 feet for the ILS Approach. I missed the read back error descending to 2;000 feet. The MVA (Minimum Vectoring Altitude) in the area is 2;400 feet; but 2;600 feet is the minimum altitude to join the localizer. I was prompted to climb Aircraft X when I received a low altitude alert. I told Aircraft X to check his altitude immediately and climb to 200 feet.Well; I know this sort of error has been a hot topic in recent years. Listen for the read back is the obvious answer. On the equipment side; upgrading our technology to add another layer of safety. Allow us or force us to enter the information in the data block to remind yourself of the altitude given or when you get the read back. With that; if the altitude differs by more than 200 feet to give you an alert.
Descending into MKE we were vectored to base leg for ILS 1L we were given a descent clearance to what the Captain (FP (Pilot Flying)) and I (NFP (Pilot Not Flying)) thought was 2;000 feet which is what I read back and we set the in the ALT window. As we leveled at 2;000 feet we both saw the radar ALT at about 1;300 feet just as Approach called [to] check ALT; I then confirmed our altitude and was corrected that we should be at 2;600 feet. We corrected our altitude and completed our ILS approach.
MKE Controller and flight crew reported the crew read back the wrong altitude and descended below the Minimum Vectoring Altitude.