As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TAKE OFF CONFIG WARNING AT TAKE OFF ROLL, ONCE POWER LEVERS REACHED RATING DETENT. TAKE OFF ABORTED AT 50 KIAS . TESTS NORMAL ON TAXI OUT. R & R NR 2 IOP MODULE AS A PRECAUTION IAW TASK CARD 6314101. OPS TESTED GOOD. COMPLIED WITH FUNCTIONAL TEST OF THE TAKEOFF WARNING SYSTEM IAW AMM TASK 31-52-00-720-801. ALL TESTED GOOD. ACFT REMAINS CAT III QUALIFIED. RETURNED TO SERVICE.