As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NO AIRSPEED INDICATION ON TAKE OFF ROLL - SPEED FLAG ON ADI. ELECTRICAL (BATTERY & APU GENERATOR) RESET PERFORMED. ADI OPERATIONAL TEST PERFORMED SATISFACTORILY PER MM 34-22-0. ADC'S SWAPPED FOR TROUBLE-SHOOTING PURPOSES AND SELF TEST PERFORMED SATISFACTORILY PER MM 34-12-0