As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT RTO DUE TO SPEED BRAKE DO NOT ARM LIGHT ILLUMINATED AFTER TAKEOFF THRUST SET. CREW INFO RTO IAS 70 GROSS WEIGHT 148000 LBS WITHOUT USING REVERSE. LIGHT EXTINGUISHED DURING DECELERATION. PFM AACU BITE TEST NO FAULT FOUND. BITE TEST SMYD 2 FOUND FAULT 27-62001 LATCHED, AUTO STOW FAULT. REPLACED AUTO STOW ACTUATOR & BITE TEST PASS.