As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SFO - CEILING EMERGENCY LIGHTS AT FORWARD LAVATORY L1, AFT RIGHT HAND LAVATORY AND AFT OF ROW 28 INOPERATIVE. REPLACED BATTERY PACKS FOR CEILING EMERGENCY LIGHTS AT FORWARD LAVATORY L1, AFT RIGHT HAND LAVATORY AND AFT OF ROW 28. SYSTEM GROUND CHECKED NORMAL OPERATION.