What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
The instructor pilot (ip) and student pilot (sp) were conducting a flight lesson. The flight lesson introduced a simulated instrument approach with a simulated one engine inoperative. The ip was monitoring the performance of the sp and provided instruction to correct for a large scale course deviation before crossing the final approach fix (faf). The ip maintained his attention on the CDI and sp performance. A pre landing checklist was not completed prior to landing. The gear was not extended. The aircraft touched down on the runway surface with the gear retracted. The aircraft skidded down the runway for approximately 200 feet.
As the FAA filed it
THE INSTRUCTOR PILOT (IP) AND STUDENT PILOT (SP) WERE CONDUCTING A FLIGHT LESSON. THE FLIGHT LESSON INTRODUCED A SIMULATED INSTRUMENT APPROACH WITH A SIMULATED ONE ENGINE INOPERATIVE. THE IP WAS MONITORING THE PERFORMANCE OF THE SP AND PROVIDED INSTRUCTION TO CORRECT FOR A LARGE SCALE COURSE DEVIATION BEFORE CROSSING THE FINAL APPROACH FIX (FAF). THE IP MAINTAINED HIS ATTENTION ON THE CDI AND SP PERFORMANCE. A PRE LANDING CHECKLIST WAS NOT COMPLETED PRIOR TO LANDING. THE GEAR WAS NOT EXTENDED. THE AIRCRAFT TOUCHED DOWN ON THE RUNWAY SURFACE WITH THE GEAR RETRACTED. THE AIRCRAFT SKIDDED DOWN THE RUNWAY FOR APPROXIMATELY 200 FEET.