As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR RETURN AND DECLARED EMERGENCY DUE TO CREW REPORTING IN CLIMBOUT A FWD GALLEY OVEN (109) BECAME DETACHED AND SLID OUT OF POSITION. FLT ATTD MANAGED TO PUSH BACK INTO PLACE, BUT UNABLE TO SECURE IT IN PLACE. MX INSPECTED OVEN AND OPS CHKED. NO FAULTS NOTED.