What was found
AUTOTHROTTLE DISENGAGED DURING CLIMB WITHOUT WARNING (NO A/T ANNUNCIATION ON PANEL). UPON LEVEL OFF WE GOT AN OVERSPEED CLACKER FOR APPROX 1-2 SECONDS AT MACH .80. ACFT GROUNDED. OVSPD INSP OF AIRFRAME NOT REQD IAW AMM 05-51-04-210-801, ITEM 2.G(2). CREW STATED THAT OVSPD CLACKER OCCURRED AT 35,000 FT & EXCEEDED BY APPX 1 KNOT & MUCH LESS THAN .02 MACH EXCEEDANCE ALLOWED IN ABOVE REF PRIOR TO REQUIRING INSP. PERFD A/T BITE IAW AMM 22-31-00, NO FLIGHT FAULTS FOUND & CURRENT STATUS AND INTERACTIVE THROTTLE TEST OPS NORMAL - NO FAULTS. NO HISTORY LAST 30 DAYS. ACFT REMAINS CAT IIIA A/L & HGS. ETOPS GROUND VERIFICATION SUCCESSFUL.