As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOS - FLT 4881 - AN ELECTRICAL SMOKE ODOR WAS TRACED TO THE HOT JUGS. COULD NOT DETERMINE WHICH HOT JUG. REMOVED BOTH HOT JUGS, WITHIN SEVERAL MINUTES ODOR DISAPPEARED. MAINTENANCE REMOVED AND REPLACED BOTH CONNECTORS FOR HOT JUGS. OPERATIONAL CHECK GOOD. (M)