What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) During a training flight with a student, instructor simulated failure of both engines in the pattern, instructing the student to accomplish an all engine out landing. This maneuver had not been briefed beforehand, and the student's response was slow, resulting in a late turn towards the runway. During the completion of the maneuver the instructor became pre-occupied with the student's airspeed control and wind correction, as well as other airport activity. As a result, he failed to ensure the gear was extended, resulting in a gear up landing. Instructor reported subsequently that all gear systems including warning horns were operating normally.
As the FAA filed it
(-23) DURING A TRAINING FLIGHT WITH A STUDENT, INSTRUCTOR SIMULATED FAILURE OF BOTH ENGINES IN THE PATTERN, INSTRUCTING THE STUDENT TO ACCOMPLISH AN ALL ENGINE OUT LANDING. THIS MANEUVER HAD NOT BEEN BRIEFED BEFOREHAND, AND THE STUDENT'S RESPONSE WAS SLOW, RESULTING IN A LATE TURN TOWARDS THE RUNWAY. DURING THE COMPLETION OF THE MANEUVER THE INSTRUCTOR BECAME PRE-OCCUPIED WITH THE STUDENT'S AIRSPEED CONTROL AND WIND CORRECTION, AS WELL AS OTHER AIRPORT ACTIVITY. AS A RESULT, HE FAILED TO ENSURE THE GEAR WAS EXTENDED, RESULTING IN A GEAR UP LANDING. INSTRUCTOR REPORTED SUBSEQUENTLY THAT ALL GEAR SYSTEMS INCLUDING WARNING HORNS WERE OPERATING NORMALLY.