As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER PUSHBACK AND ENGINE START, FLIGHT GO A BAG COMPARTMENT SMOKE DETECTOR WARNING LIGHT. CAPTAIN NOTIFIED F/A TO HASTILY DEPLANE THE PASSENGERS AND HAD THE F/O CALL FOR A FIRE TRUCK TO CHECK IT OUT. THERE WAS NO FIRE OR SMOKE EVIDENT.