What was found
(CAN) DURING DESCENT WITH LT GENERATOR INOPERATIVE AND APU ON, VARIOUS SYSTEM STARTED TO FAIL. LT SIDE PFD AND MFD OFF, NO POWER, FIRE ANNUNCIATION LAVATORY AND AFT BAY, LAV SMOKE, NO PRESSURISATION, JUST RAM AIR, FLAPS FAULT AFTER LANDING, STUCK DOWN, HAD 2 PAGES OF CAS MESSAGES ALL COLORS.