Narrative:

Aircraft X was inbound from the southeast and tracking direct to the airport. Aircraft X checked on with tower on a visual approach southeast of the downtown buildings and twin antennas. I cleared aircraft X to land and asked the pilot if he intended to base north or south of the twin antennas. I didn't have any other traffic at the time so this served mostly to remind or alert the pilot about the antennas as he descended and flew towards them. The pilot first stated his intention to turn base south of the antennas. The low altitude alert triggered and as the approach controller keyed up the shout line to notify me of the low altitude alert the pilot of aircraft X called up again and changed his plan to base north of the twin antennas. I observed aircraft X out the windows and watched as he maintained safe spacing from the obstructions before turning final.stop bringing aircraft from the southeast direct to the airport and stop actively creating watch situations. The downtown buildings and twin antenna are significant obstructions and frequently interfere with pilots getting and keeping the airport in sight. A 7 to 10 mile straight in for aircraft arriving for the northeast prevents this.

Google
 

Original NASA ASRS Text

Title: MKC Tower Controller reported the Approach Controller advised them of a Low Altitude Alert for an aircraft on a Visual Approach.

Narrative: Aircraft X was inbound from the southeast and tracking direct to the airport. Aircraft X checked on with Tower on a Visual Approach southeast of the downtown buildings and twin antennas. I cleared Aircraft X to land and asked the pilot if he intended to base north or south of the twin antennas. I didn't have any other traffic at the time so this served mostly to remind or alert the pilot about the antennas as he descended and flew towards them. The pilot first stated his intention to turn base south of the antennas. The Low Altitude Alert triggered and as the Approach Controller keyed up the shout line to notify me of the Low Altitude Alert the pilot of Aircraft X called up again and changed his plan to base north of the twin antennas. I observed Aircraft X out the windows and watched as he maintained safe spacing from the obstructions before turning Final.Stop bringing aircraft from the southeast direct to the airport and stop actively creating watch situations. The downtown buildings and twin antenna are significant obstructions and frequently interfere with pilots getting and keeping the airport in sight. A 7 to 10 mile straight in for aircraft arriving for the northeast prevents this.

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.