As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
During Climb to cruise altitude Both Mach Feel Fail Lights came on. Fuel dump procedures carried out for Max landing wt (26K lbs dumped). Aircraft landed normal and returned to base.Corrective Action: Removed and replaced Trim Augmentation Computer. Op's check satisfactory I/A/W 22-13-01. Aircraft returned to service.