What was found
SJO - FLT LR-610 - DURING CLIMB OF THE FLIGHT LR610, THE CAPTAIN REPORTED NR 1 ENGINE, HIGH OIL TEMP CSD, AND NR 2 ENGINE, HIGH OIL TEMP CSD, THE AIRCRAFT RETURN TO SJO STATION FOR MAINTENANCE. AFTER LANDING, TECHNICIANS PERFORMED THE FAULT ANALYSIS, THE CSD NR 1 AND OIL COOLER NR 1 WERE REMOVED AND REPLACED, AND NR 2 OIL COOLER CSD WAS CHANGE IAW MM 24-11-11 AND 24-11-21. AIRCRAFT RETURNED TO NORMAL OPERATION. (M)