As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
2H10 IN FLIGHT HAD VIBRATION BEHIND CA DISPLAYS FOLLOWED BY EL ECTIC SMELL. MODERATE LOCKED FOR FIX REMOVED AND REPLACED THE FORWARD RACK EXHAUST FAN PER THE BOEING 767 AMM TASK 21-58-06-404-146. PERFORMED OPERATIONAL TEST OF THE EXHAUST FAN AND FOUND NO DEFECTS NOTED. NO EICAS STATUS MESSAGE PRESENT.