As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: TAKE OFF CONFIG WARNING HORN AT TAKE OFF, TAKE OFF CONFIGURATION CHECKED GOOD. MAINTENANCE FOUND FAULT 31-53007 ON PSEU, SPEED BRAKE HANDLE UP. PER FIM 27-62-00-810-808. REPLACED SPEED BREAK WARNING SWITCH S651. OPERATIONAL CHECKED GOOD, PER AMM 31-51-03