What was found
AC RETURNED TO DEPARTURE DURING TAKEOFF, NOISE AND VIBRATION IN THE NOSE LANDING GEAR WERE DETECTED AND CONTINUED WITH FLAPS AT 40 DEGREES. ABNORMAL PROCEDURE SECTION 5-10 WAS PERFORMED. AT PLATFORM, MAINT DETECTED THE NOSE LANDING GEAR DOOR OPEN AND UNLOCKED, AC WAS SENT TO THE HANGAR AND A LINK WAS DETECTED LOOSE. THE LINK WAS REPLACED IAW MM 32-22-01, TESTED CORRECT. THE OVERWEIGHT INSP WAS NOT NECESSARY DUE TO THE LANDING WEIGHT WAS 110,500 POUNDS AND THE MAXIMUM IS 128,000 POUNDS.