What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
On March 28 at 1109 central time, privacy data omitted conducted an r&d flight to evaluate an adahrs software mod iaw test conditions in rtca DO-334. Shortly after departure the test was terminated due to intermittent GPS antennae loss of integreity.
The approach to landing was normal with landing gear in down position confirmed by green light indication. Upon touch down the left main landing gear collapsed causing the propeller and flap to impact the ground. NTSB determined damage was minor.
As the FAA filed it
ON MARCH 28 AT 1109 CENTRAL TIME, ^PRIVACY DATA OMITTED^ CONDUCTED AN R&D FLIGHT TO EVALUATE AN ADAHRS SOFTWARE MOD IAW TEST CONDITIONS IN RTCA DO-334. SHORTLY AFTER DEPARTURE THE TEST WAS TERMINATED DUE TO INTERMITTENT GPS ANTENNAE LOSS OF INTEGREITY.
THE APPROACH TO LANDING WAS NORMAL WITH LANDING GEAR IN DOWN POSITION CONFIRMED BY GREEN LIGHT INDICATION. UPON TOUCH DOWN THE LEFT MAIN LANDING GEAR COLLAPSED CAUSING THE PROPELLER AND FLAP TO IMPACT THE GROUND. NTSB DETERMINED DAMAGE WAS MINOR.