As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 0429 - SAN - BAGGAGE SMOKE DID NOT TEST WHILE PERFORMING OPS CHECKS. MX PERSONNEL REMOVED AND REPLACED TEST PUSH BUTTON FROM THE FIRE EXTINGUISHER APU/BAG MODULE IN THE OVERHEAD PANEL. OPERATIONALLY CHECKED SATISFACTORY. AIRCRAFT WAS RELEASED TO RETURN FOR SERVICE.