A crj captain reported the flying first officer descended 150 feet below MDA on a localizer approach...

Attributes
ACN	1331570
Time
Date	201602
Local Time Of Day	1201-1800
Place
Locale Reference	MKE.Airport
State Reference	WI
Aircraft 1
Make Model Name	Regional Jet CL65 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Flight Plan	IFR
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 200 Flight Crew Total 28300 Flight Crew Type 7000
Events
Anomaly	Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Published Material / Policy Deviation - Procedural Clearance Inflight Event / Encounter CFTT / CFIT

Narrative:

We were flying the localizer approach to 24L. As we started down to our MDA we broke out and I started looking for the airport. I was making the call outs to MDA and thought the first officer was stopping the descent at the MDA. I looked out and back and realized he was still descending and told him to stop descent. We stopped 150 feet below MDA; continued the approach and landed. Looking back at the approach I should have called for a missed approach and received vectors for another approach. The only reason for continuing was use of poor judgment or just a bad decision at the time.

Original NASA ASRS Text

Title: A CRJ Captain reported the flying First Officer descended 150 feet below MDA on a LOC approach.

Narrative: WE were flying the LOC approach to 24L. As we started down to our MDA we broke out and I started looking for the airport. I was making the call outs to MDA and thought the First Officer was stopping the descent at the MDA. I looked out and back and realized he was still descending and told him to stop descent. We stopped 150 feet below MDA; continued the approach and landed. Looking back at the approach I should have called for a missed approach and received vectors for another approach. The only reason for continuing was use of poor judgment or just a bad decision at the time.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.