Private pilot reported a brief runway excursion following a hard landing.

Attributes
ACN	1667556
Time
Date	201907
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Small Aircraft High Wing 1 Eng Fixed Gear
Operating Under FAR Part	Part 91
Flight Phase	Landing
Route In Use	Direct
Flight Plan	VFR
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Private
Experience	Flight Crew Last 90 Days 6 Flight Crew Total 456 Flight Crew Type 10
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Ground Event / Encounter Loss Of Aircraft Control Ground Excursion Runway

Narrative:

Landing; [runway] 34 to the north. Landed a little hard. When that happened my left control stick switch top popped off which let my hand come off the control stick; this took me by surprise and I started to run off the asphalt runway into the grass between the runway and the taxiway. I took control and reentered the runway and continued to my home/hangar without incident. No damage to the airport/airplane was done.

Original NASA ASRS Text

Title: Private pilot reported a brief runway excursion following a hard landing.

Narrative: Landing; [Runway] 34 to the north. Landed a little hard. When that happened my left control stick switch top popped off which let my hand come off the control stick; this took me by surprise and I started to run off the asphalt runway into the grass between the runway and the taxiway. I took control and reentered the runway and continued to my home/hangar without incident. No damage to the airport/airplane was done.

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.