What was found
AFTER LANDING DURING FLAP RETRACTION WE GOT A FLAPS FAIL AMBER EICAS MESSAGE. FLAPS REMAINED AT 45, AIR TEMP WAS -28 C, AIRSPEED WAS 0, TIME INTO FLIGHT WHEN FAILURE HAPPENED WAS 1:16. TROUBLE SHOT IAW BOMB FIM REV 45 IAW AD 2009-06-12 PARA H 6I, AMOC DATED 7/22/2013 & PA AD27-052N. FOUND FAULT CODES 1JAM, 2 RT BPSU & 3 PDU DIFFERENTIAL. FOUND PRE TQ CHECKS LT = 13.8, RT = 25. PERFORMED FLAP LUBE CHECKLIST, REPLACED RT NR 1, 3 & 5 TQ SHAFTS, INSPECTED RT ACTUATORS, NO DEFECTS & LUBED ACTUATORS. POST MX TQ CHECKS ARE LT = 13 & RT = 11.