What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
The pilot in command was practicing touch-and-goes using left hand traffic pattern for runway 12. There were two other aircraft in the pattern at the same time. The pilot had to use the hand held microphone to communicate with other traffic due to push to talk switch on the yoke was intermittent. The pilot was not accustomed to using the hand held microphone.
While observing the other traffic and staying clear of each other, the check list step for gear down was missed leading to a gear up landing.
As the FAA filed it
THE PILOT IN COMMAND WAS PRACTICING TOUCH-AND-GOES USING LEFT HAND TRAFFIC PATTERN FOR RUNWAY 12. THERE WERE TWO OTHER AIRCRAFT IN THE PATTERN AT THE SAME TIME. THE PILOT HAD TO USE THE HAND HELD MICROPHONE TO COMMUNICATE WITH OTHER TRAFFIC DUE TO PUSH TO TALK SWITCH ON THE YOKE WAS INTERMITTENT. THE PILOT WAS NOT ACCUSTOMED TO USING THE HAND HELD MICROPHONE.
WHILE OBSERVING THE OTHER TRAFFIC AND STAYING CLEAR OF EACH OTHER, THE CHECK LIST STEP FOR GEAR DOWN WAS MISSED LEADING TO A GEAR UP LANDING.