What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) When the pilot entered downwind to land on runway 33, he observed another aircraft in the pattern and extended the downwind to compensate for the other aircraft. Consequently, he failed to lower his landing gear as he normally would on downwind and landed gear up. He failed to follow his landing checklist as a backup. The aircraft sustained damage only to the propeller.
As the FAA filed it
(-23) WHEN THE PILOT ENTERED DOWNWIND TO LAND ON RUNWAY 33, HE OBSERVED ANOTHER AIRCRAFT IN THE PATTERN AND EXTENDED THE DOWNWIND TO COMPENSATE FOR THE OTHER AIRCRAFT. CONSEQUENTLY, HE FAILED TO LOWER HIS LANDING GEAR AS HE NORMALLY WOULD ON DOWNWIND AND LANDED GEAR UP. HE FAILED TO FOLLOW HIS LANDING CHECKLIST AS A BACKUP. THE AIRCRAFT SUSTAINED DAMAGE ONLY TO THE PROPELLER.