As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: THE FLIGHT ATTENDANTS REPORTED A STRONG ELECTRICAL ODOR FROM ROW 29 TO THE BACK OF AIRCRAFT. TURNED OFF PACK NR 2 AND THE ODOR WENT AWAY. MAINTENANCE ACCOMPLISHED JOBCARD 26L00021001, FOUND AND VERIFIED SOURCE OF ODOR TO BE RECIRCULATION FAN 15HG. MAINTENANCE REPLACED CABIN FAN 15HG PER AMM 21-21-51 AND PERFORMED SATISFACTORY OPERATIONAL CHECK.