As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI, PASSENGER SERVICES LIGHT EXPLODED AT SEAT 33F. REMOVED THE LIGHT FROM THE SOCKET. *S/D* DETERMINED THAT LAMP SHATTERED RATHER THAN EXPLODING. ASSUME LAMP WAS FAULTY AND HAD AN AIR INTRUSION WHICH CAUSED IT TO OVERHEAT AND SHATTER.