As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER PUSH BACK, THE AFT F/A'S REPORTED AN (ELECTRICAL) BURNING ODOR. THE FLIGHT CREW WAS NOTIFIED AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED THE AIRCRAFT IAW TSM 24-00-00-810-823 WITH NO DEFECTS NOTED. THE AIRCRAFT WAS RETURNED TO SERVICE.