As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR HANDLE COULD NOT BE RAISED FROM THE DOWN POSITION AFTER TAKEOFF. THE FLIGHT HOUR CLOCK DIDN'T START, TRANSPONDER WAS NOT SENDING OUT ALTITUDE INFORMATION & THE NO TAKEOFF LIGHT CAME ON. REMOVED AND REPLACED LT MLG SQUAT SWITCH IAW MM 32-61-00. OPS CHECKED GOOD.