What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Sometime after enging start during taxi, pilot moved gear position handle to the neutral position which removed hydraulic pressure from system, which kept gear actuators in the over center position. During aircraft taxi pilot selected 5 degrees flaps at which time left gear collapsed followed by right gear. Nose gear remained extended preventing engine and propeller damage. Pilot had not completed a required check ride as his initial certificate date of issue was 03/17/09.
As the FAA filed it
SOMETIME AFTER ENGING START DURING TAXI, PILOT MOVED GEAR POSITION HANDLE TO THE NEUTRAL POSITION WHICH REMOVED HYDRAULIC PRESSURE FROM SYSTEM, WHICH KEPT GEAR ACTUATORS IN THE OVER CENTER POSITION. DURING AIRCRAFT TAXI PILOT SELECTED 5 DEGREES FLAPS AT WHICH TIME LEFT GEAR COLLAPSED FOLLOWED BY RIGHT GEAR. NOSE GEAR REMAINED EXTENDED PREVENTING ENGINE AND PROPELLER DAMAGE. PILOT HAD NOT COMPLETED A REQUIRED CHECK RIDE AS HIS INITIAL CERTIFICATE DATE OF ISSUE WAS 03/17/09.