As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERSION - ANNUNCIATOR LIGHT TEST ACTIVATED IN FLIGHT. CREW DECLARED EMERGENCY AND DIVERTED TO MIA. ON APPROACH CREW FOUND THE TEST SWITCH IN THE ON POSITION. C/W ANNUNCIATOR LIGHT DIMMING ADJ AND TEST AND ANNUNCIATOR LIGHT TEST IAW 33-161-00-5, 33-14-00-5. OPS CHECK GOOD.