As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DOOR 1L EMERGENCY EXIT LIGHTS CAME ON 45 MINS INTO FLT STDY AT FIRST THEN FLICKERED. PRES NORMAL REMOVED UPPER L1 DOOR EMERGENCY EXIT LIGHT, INSPECTED CONNECTION WIRES WITH NO ISSUES NOTED. REPLACED UPPER L1 EXIT LIGHT ASSY REF AMM 33-51-01. OPS CHECK NORMAL.