As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: SLOWING FROM 300 KNOTS TO 250 KNOTS, ON THE DESCENT 3 RED LIGHTS DISPLAYED AND LANDING GEAR WARNING HORN SOUNDED FOR APPROXIMATELY 5 SECONDS. MAINTENANCE ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK PER FIM TASK 32-09-00, NO FAULTS NOTED.