What was found
DURING TAKE OFF ROLL AT APROXIMATELY 100 KTS, THE CAPTAIN`S AND FIRST OFFICER`S PFD AND MFD FLICKERED. CONTINUED TAKE OFF. AT ROTATION, THE NR 1 GENERATOR CAUTION MESSAGE ALONG WITH TCAS FAIL STATUS MESSAGE, WS FAIL AND RA FAIL STATUS MESSAGES. LEVELED AT 5000 FT, COMPLIED WITH QRH. GENERATOR CAUTION CLEARED. RETRNED TO DEPARTURE. LANDED NORMAL. ON TOUCHDOWN, RECEIVED GLD UNSAFE CAUTION MESSAGE. MESSAGE CLEARED WITHOUT CREW ACTION. NO DEFECTS NOTED. R & R THE NR 1 GENERATOR IAW AMM 24-11-01-04. PERFORMED OPS CHECK AND LEAK CHECKED GOOD.