What was found
ON CLIMB OUT, THE RT ENGINE GENERATOR FAILED AT HIGH POWER. THIS CAUSED A FAILURE OF THE GENERATOR CONTROL, AS WELL AS A DEPRESSURIZATION OF HYD SYSTEM 3 AMONG OTHER THINGS. AN EMERGENCY WAS DECLARED BY ATC. MX REMOVED AND REPLACED THE NR 2 IDG AND OPS TESTED GOOD. REMOVED AND REPLACED GCU NR 2 OPS TESTED GOOD. HYD SYSTEM 3B LOW PRESSURE CAUTION STATUS MESSAGE. REMOVED & REPLACED NR 3 B HYD PUMP, OPS TEST OF APU BATTERY CHARGING SYSTEM. OPS TEST RECIRCULATION FAN. OPS TESTED FLAPS & SLATS. ALL OPS CHECK GOOD NO DEFECTS NOTED AT THIS TIME.