As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, 17A EMERGENCY EXIT LIGHTS FLICKERING. GROUNDED - YES. OPERATED EMERGENCY EXIT LIGHTS AND CABIN LIGHTING THROUGH MULTIPLE CYCLES/SCENES OBSERVING NORMAL OPERATION. CONFIRMED ALL LED ELEMENTS OF EXIT LIGHTS OPERABLE. NO FLICKERING OBSERVED. REF AMM 33-21-00 + 33-51-00.