As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT NR 3763 REPORTED THE SMOKE WARNING LIGHT ILLUMINATING WHILE GROUND HANDLING. NO SMOKE WAS PRESENT FROM THE BAGGAGE COMPARTMENT. MAINTENANCE REMOVED AND REPLACED THE NR 2 SMOKE DETECTOR IN THE BAGGAGE COMPARTMENT AND OPERATIONAL TEST THE SYSTEM. ALL CHECKS GOOD.