As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT CABIN EMERGENCY LIGHTS STARTED FLICKERING AND CONTINUED TO DESTINATION. THEY GOT MUCH DIMMER BY THE TIME OF LANDING. C/W FIM 488S-33-50-00-8 I 0-802. AN INCORRECT FUNCTIONING OF THE EMERGENCY LIGHTS, FLICKER OR BLINKING. FOUND EMERGENCY BATTERIES 1 AND 2 HAD FAILED. FOUND BOTH BATTERIES FAILED TEST. REMOVED BOTH EMERGENCY BATTERIES AND INSTALLED REPAIRED UNITS IAW AMM 33-52-01-400-801-A OPS CHECKED GOOD.