As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ABORTED TAKEOFF DUE TO AHRS DISC AP 1 AND TRIM. DURING TROUBLESHOOTING, FOUND AP1 NOT POWERING UP WITH AHRS DISC AND TRIM FAILURE. SWAPPED AP MODULES AND THE PROBLEM SWAPPED TO AP2. REMOVED AND REPLACED AP1 MODULE IAW AMM 22-10-00,4-1. T/F SUCCESSFULLY COMPLETED IAW RFM.