As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE NR 1 REV UNLK ILLUMINATED ON TAKEOFF ROLL. REJECTED TAKEOFF APPROX 40 KTS REV UNLK LIGHT EXTINGUISHED WHEN THROTTLES PULLED TO IDLE. REMOVED AND REPLACED NR 1 ENGINE STOW SWITCH S303 AND PERFORMED RIGGING PER A310 AMM 78-31-00-5. OPS CHK COMPLETED. ALL INDICATION NORMAL.