What was found
AT FL 370 LOST F/D - AUTOTHROTTLES AND A/P LATER WE GOT L/E SLAT DISAGREE CAUTION MSG ALONG WITH NUMEROUS ADVISORY MSGS. AILERON LOCKOUT AND STBY BUS OFF, ALSO NOTICED THAT DC STBY BUS C/B AND BUS DISTR C/B HAD POPPED AFTER LANDING. ONCE ON GROUND MTC RESET CBS, ALL MSGS CLEARED. INSPECTED BATTERY AND CHARGER, CKS OK. INSPECTED RELAYS K105-K109 CKS OK. BPCU SHOWED NO FAULTS. REPLACED BPCU AS PRECAUTIONARY. MTC FERRIED TO ATL ON 9936. REPLACED OVERHEAD PANEL, K109¥ K106 AND K104 RELAYS STDBY POWER FOR PRECAUTION.