As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AIRCRAFT 7004, L/P 5338771) MTC RECEIVED VERBAC REPORT FROM CLEANING CREW THAT DOOR 4L/R EMERGENCY LTS WERE ON. UPON ENTERING DR4L/R LOCATION FOUND EMERGENCY LTS NOT ILLUMINATED. PERFORMED OPS TEST PER B777 AMM33-51. LTS AT DOOR 4 L/R CHECK OK.