Narrative:

I had quite a few things going on. Aircraft X wanted to go back for a practice ILS approach. I initially cleared him via radar vectors and down to 4;000 feet due to waiting on an IFR cancellation into another airport. I then issued 2;400 feet instead of 2;500 feet and didn't realized that I had said 2;400 feet. No loss of separation with any other aircraft occurred. Aircraft X went 100 feet below the MVA. I should have paid closer attention to what I was saying. I had just come back from vacation and had a couple of uncommon practices going on at once.

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Original NASA ASRS Text

Title: SBN TRACON Controller reported descending an aircraft below the Minimum Vectoring Altitude.

Narrative: I had quite a few things going on. Aircraft X wanted to go back for a practice ILS approach. I initially cleared him via radar vectors and down to 4;000 feet due to waiting on an IFR cancellation into another airport. I then issued 2;400 feet instead of 2;500 feet and didn't realized that I had said 2;400 feet. No loss of separation with any other aircraft occurred. Aircraft X went 100 feet below the MVA. I should have paid closer attention to what I was saying. I had just come back from vacation and had a couple of uncommon practices going on at once.

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.