What was found
SHORTLY AFTER TAKEOF, LOST BOTH FLT DIRS, SEVERAL AMBER LIGHTS ON COMPARATOR CAME ON AND A/P WOULD NOT ENGAGE. SHORTLY AFTER, SMELLED A STRONG ACRID ODOR. CKD COCKPIT AND ELECTRONIC BAYS FOR EVIDENCE OF ELECTRICAL PROBLEMS, NONE FOUND. PERFORMED RTS ON NR 1 DFGC CKD GOOD. PERFORMED RTS ON NR 2 DFGC, FAILED NR 2 DFGC AIL MECH TORQUE SW. REPLACED NR 2 DFGC RTS GO. RAN ENGS TO T/O. POWER, NO PROBLEMS NOTED.