What was found
PILOT REPORTED DURING DESCENT INTO PSO WHILE REDUCING POWER TO SLOW, ALL ELECTRICAL POWER WAS LOST FOR APPROXIMATELY 3 SECONDS. ALL SCREENS WENT BLACK. ALL INTERIOR LIGHTING TURNED OFF. INTERCOM TURNED OFF. WHEN EVERYTHING TURNED BACK ON, SYNTHETIC VISION WAS THE ONLY THING NOT FULLY FUNCTIONAL.FOUND BROKEN WIRE AT TERMINAL LUG OF GEN 2. REPAIRED WIRE AT TERMINAL LUG ACCORDING TO STANDARD PRACTICES. OPS CHECK NORMAL AT THIS TIME.