As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4644 THE CREW REPORTED A STRONG ELECTRICAL SMELL IN GALLEY, COCKPIT AND NOSEWHEEL WELL. TROUBLESHOT AND ODOR FOUND TO BE COMING FROM ESS TRU 1 DEACTIVATED AND DEFERRED MEL. REMOVED AND REPLACED THE ESS TRU NR 1 IAW AMM 24-31-01. THE OPERATIONAL CHECK WAS GOOD. MEL RESTORED. THE AIRCRAFT WAS RETURNED TO SERVICE.