As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MASTER CAUTION LIGHT ONCE TO THRUST APPLIED UNDER 40KTS TOMC DEBRIEFED THE CREW AND FOUND NO ASSOCIATED MASTER CAUTION ANNUNCIATOR ILLUMINATED DURING THE RTO. CAPT AGREED TO ATTEMPT ANOTHER TAKEOFF. BRAKE TEMPS ARE GOOD PER AMM 05-51-07.