As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING T.C. #78233008, EMERG LIGHT OPS CHECK, FOUND LIGHT FOR AFT LH SERVICE DOOR "SHARK LIGHT" INOP. GROUNDED - YES. CLEANED LIGHT SOCKET FOR LEFT AFT SERVICE DOOR EXTERIOR EMERGENCY LIGHT WITH ALCOHOL AND ACID BRUSH. RELAMPED AND REMOVED AND REPLACED EMERGENCY LIGHT POWER SUPPLY REF B737-800 AMM 33-51-04 AND 33-51-06. OPS CKS GOOD.