As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REJECTED TAKEOFF AT 75 KTS, ACFT WEIGHT 130,000 DUE TO UNSCHEDULED AIRSPEED/MACH AURAL WARNING SYSTEM MEL 12MAY07 03:27, BFM R ACN RELEASED FOR SERVICE PER MEL/CDL: 34-04-03 CATEGORY: B EXPIRATION: 15MAY07. MEM R PERFORMED MACH AURAL WARN TEST IAW 727-200 M/M 34-14-002-5 AND NO FAULTS FOUND, UNABLE TO DUPLICATE REPORTED DISCREPANCY. REMOVED AND REPLACED BOTH CAPT'S AND F/O'S MACH AIRSPEED INDICATORS IAW 727-200 M/M 34-12-021-4.