As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PASSING 10000 FT ACCELERATING THROUGH 260 KNOTS. THE AURAL OVERSPEED WARNING SOUNDED (SLATS RETRACTED) CLEAN CONFIGURATION SLOWED AND RECYCLED SLATS AND ACCELERATED AGAIN PASSING 260 KNOTS THE WARNING CAME ON AGAIN. ALSO TRIED CADC BOTH 1 AND BOTH ON 2 AND THE HORN STILL SOUNDED. REMOVED AND REPLACED AURAL WARNING UNIT IAW DC10-10 MM 31-51-00-5. OPS CHECK GOOD IAW DC10-10MM 31-51-00- 5. OK FOR SERVICE.