Narrative:

While on a circling approach to runway 16 at 2r9 (karnes county airport); tall (approximately 50 foot high) billboards approximately 200' from the approach threshold of runway deflected a 23K left quartering headwind upward at high velocity; causing 15K drop in indicated airspeed on short final. The pilot and his IFR instructor decided to execute a go around. Go around safely executed. The placement of these billboards is hazardous to air navigation. I am especially concerned about night or actual IMC landings here due to their location.

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Original NASA ASRS Text

Title: An SR-20 pilot experienced a sudden airspeed drop on short final to runway 16 at 2R9; attributing the loss to 23K quartering crosswinds being deflected by four 50' tall billboards on short final to the runway.

Narrative: While on a circling approach to RWY 16 at 2R9 (Karnes County Airport); tall (approximately 50 foot high) billboards approximately 200' from the approach threshold of RWY deflected a 23K left quartering headwind upward at high velocity; causing 15K drop in indicated airspeed on short final. The pilot and his IFR instructor decided to execute a go around. Go around safely executed. The placement of these billboards is hazardous to air navigation. I am especially concerned about night or actual IMC landings here due to their location.

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.