As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HAD A (NO TAKEOFF) ANNUN AFTER ADDING TO THRUST AND REACHING APPROX 30 KTS, THE LIGHT CAME ON ALONG WITH HORN. ABORTED TAKEOFF. REMOVED LT SPEEDBRAKE SWITCH P/N 602EN16-6. INSTALLED NEW LT SPEED BRAKE SWITCH P/N 602EN16-6 IAW 27-61-06 OF MM. OPS CHECK GOOD.