What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) The pilot did not properly secure the right side door prior to takeoff from santa monica enroute to watsonville. The door popped open after leveling off at cruise altitude. The pilot elected to land at Camarillo to secure the door. Upon slowing down for landing, the door opened wider, causing charts and papers to blow around inside the airplane. The pilot was attempting to hold the door closed while landing, landed short on the over run of runway 26 and subsequently struck a barrier at the threshold, causing the right main gear to break off.
As the FAA filed it
(-23) THE PILOT DID NOT PROPERLY SECURE THE RIGHT SIDE DOOR PRIOR TO TAKEOFF FROM SANTA MONICA ENROUTE TO WATSONVILLE. THE DOOR POPPED OPEN AFTER LEVELING OFF AT CRUISE ALTITUDE. THE PILOT ELECTED TO LAND AT CAMARILLO TO SECURE THE DOOR. UPON SLOWING DOWN FOR LANDING, THE DOOR OPENED WIDER, CAUSING CHARTS AND PAPERS TO BLOW AROUND INSIDE THE AIRPLANE. THE PILOT WAS ATTEMPTING TO HOLD THE DOOR CLOSED WHILE LANDING, LANDED SHORT ON THE OVER RUN OF RUNWAY 26 AND SUBSEQUENTLY STRUCK A BARRIER AT THE THRESHOLD, CAUSING THE RIGHT MAIN GEAR TO BREAK OFF.