Narrative:

During the final landing phase the winds reported by ATIS prior to my landing were estimated at 100 degrees at 14 kts. During the flare I felt comfortable with the landing configuration and adjusted power to idle. While on ground effect I encountered a sudden strong mechanical thermal turbulence from the right side of the aircraft coming off the hangar structures that are in close proximity to the runway. The aircraft nose veered to the left; towards the grassy area located on the left side of the runway. The aircraft continued moving slowly on the grassy area. The engine power was on idle and no excessive braking action was applied. The aircraft slowly turned towards a taxiway and brought to a complete stop. Then I followed tower instructions to continue to the ramp.I proceeded to park the aircraft and secure it down. Airport rescue and airport supervisors showed up immediately next to the aircraft. Upon inspection of the aircraft; we observed no damage to the aircraft; the propeller; wings; empennage or airframe. No damage occurred to the airport property. There were no injuries and I was the only person on board of the aircraft. Contract maintenance personnel inspected the aircraft and reported that there was no damage to the aircraft.

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Original NASA ASRS Text

Title: C172 pilot reported a strong gust of turbulence from one side forced his plane to veer off the runway.

Narrative: During the final landing phase the winds reported by ATIS prior to my landing were estimated at 100 degrees at 14 kts. During the flare I felt comfortable with the landing configuration and adjusted power to idle. While on ground effect I encountered a sudden strong mechanical thermal turbulence from the right side of the aircraft coming off the hangar structures that are in close proximity to the runway. The aircraft nose veered to the left; towards the grassy area located on the left side of the runway. The aircraft continued moving slowly on the grassy area. The engine power was on idle and no excessive braking action was applied. The aircraft slowly turned towards a taxiway and brought to a complete stop. Then I followed Tower instructions to continue to the ramp.I proceeded to park the aircraft and secure it down. Airport Rescue and Airport Supervisors showed up immediately next to the aircraft. Upon inspection of the aircraft; we observed no damage to the aircraft; the propeller; wings; empennage or airframe. No damage occurred to the airport property. There were no injuries and I was the only person on board of the aircraft. Contract maintenance personnel inspected the aircraft and reported that there was no damage to the aircraft.

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.