What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) While giving flight instruction 20 miles s.e. of gillette WY. The instructor pilot did a magneto check and inadvertently turned the key to the off position, the ignition switch could not be returned to the on position. The student receiving the flight instruction had inadvertently used the wrong key for the aircraft. A forced landing was accomplished with no injury to the pilot or student. The aircraft was not damaged. The flight was vconducted under 14 CFR 91 under visual flight rules.
As the FAA filed it
(-23) WHILE GIVING FLIGHT INSTRUCTION 20 MILES S.E. OF GILLETTE WY. THE INSTRUCTOR PILOT DID A MAGNETO CHECK AND INADVERTENTLY TURNED THE KEY TO THE OFF POSITION, THE IGNITION SWITCH COULD NOT BE RETURNED TO THE ON POSITION. THE STUDENT RECEIVING THE FLIGHT INSTRUCTION HAD INADVERTENTLY USED THE WRONG KEY FOR THE AIRCRAFT. A FORCED LANDING WAS ACCOMPLISHED WITH NO INJURY TO THE PILOT OR STUDENT. THE AIRCRAFT WAS NOT DAMAGED. THE FLIGHT WAS VCONDUCTED UNDER 14 CFR 91 UNDER VISUAL FLIGHT RULES.