What was found
EN ROUTE, WE COULD SMELL A STRONG ODOR IN THE COCKPIT. ONCE WE LANDED THE F/O COULD DETECT THE ODOR COMING FROM THE ELECTRICAL PANEL BEHIND THE F/O'S SEAT. THE BUS SERV FEED CIRCUIT BREAKER IS POPPED BEHIND THE F/O'S SEAT (C/B F5). REPAIRED WIRES GOING INTO THE RIGHT DCPC-TB4-TERMINAL ENDS AT LOCATION NR 3 IAW ESPM 20-16-00. ALSO REPLACED TB4, ALL CHECKS GOOD. C/B F5 ON CB2 RESET. A/C OK FOR SERVICE.