Narrative:

The minimum vectoring altitude in the area is 2500 feet. I had two aircraft that were being vectored for the approach and stacked the second aircraft at 3500 feet. I then cleared the first aircraft for the ILS at 2500 feet. Unknown to me at the time is that there is a minimum intercept altitude of 3000 feet for the ILS approach.

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Original NASA ASRS Text

Title: CVG TRACON Controller assigned an aircraft the MVA and cleared them for the LUK Runway 21L ILS. The ILS minimum intercept altitude is 500 feet higher than the MVA.

Narrative: The Minimum Vectoring Altitude in the area is 2500 feet. I had two aircraft that were being vectored for the approach and stacked the second aircraft at 3500 feet. I then cleared the first aircraft for the ILS at 2500 feet. Unknown to me at the time is that there is a minimum intercept altitude of 3000 feet for the ILS Approach.

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.