As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING LINE CHECK, MX FOUND THAT THE CEILING MOUNTED EMERGENCY EXIT LIGHTS AT SEAT ROWS 16, 18, AND 20 WERE TOO DIM TO PROVIDE ESCAPE GUIDANCE. MX FOUND THE POWER SUPPLY GROUND TERMINAL LOOSE AND RE-SECURED IT. THE LIGHTS RETURNED TO AN OPS CONDITION.