What was found
ACFT RETURNED OF FLT AS A CONSEQUENCE OF RT VELOCIMETER OSCILLATED FROM 0-400 KTS & ALARM ACTIVATED. DIRECTOR BUSS DISAPPEARED IN BOTH PFD AND FMA W/O IND, AUTOMATIC ACCELERATORS DISCONNECTED, MACH TRIM LIGHT TURNED ON INFLT, AUTOPILOT DISENGAGED FREQUENTLY & "R AIR COND TEMP HI" LIGHT TURNED ON AFTER T/O. DURING MX REVISION DETECTED THAT DYNAMIC HOSE LOOSE, TIGHTENED & TESTED IAW MM, ALL CORRECT. DIRECTOR OF FLT SYS, AUTO ACCELERATORS, MACH TRIM SYS, AUTOPILOT SYS CHECKED IAW MM. AIR COND TEMP HI LIGHT DEFERRED IAW MEL 21-01. DURING OVERNIGHT SERVICE, AUGMENTATION VALVE, HI SENSOR, THERMAL SWITCH AND THERMOSTAT WERE REPLACED IAW MM 36-10-01, TESTED CORRECT. DEFERRED REPORT WAS CLOSED.