As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WE HAD A LOT OF WATER COME OUT OF GASPERS AT 16DF. PAX REPORTED SPARK FROM OVERHEAD LIGHT. NOW THAT LIGHT IS OUT. INSPECTED THE OVERHEAD PANEL AT 16DEF NOT FAULTS DETECTED PER AMM 33-20, ACFT OK FOR SERVICE. (LP: 8880930). AIRCRAFT WAS GROUNDED