What was found
OVERHEAD CABIN EMERGENCY LIGHTS FACING AIRCRAFT FRONT AND OVERWING EXIT EMERGENCY LIGHTS NEAR FLOOR BY FORWARD EXIT FLICKERING AND GOING OUT. MX REPLACED ALL 4 EMERGENCY BATTERY PACKS. OPS CHECK GOOD. BATTERY PACK 1 P/N OFF 2013-1A S/N OFF 73997 TSN 35158 HR 31311 CY TSO 6202 HR 5529 CY TSI 2204 HR 1983 CY, BATTERY PACK 2 P/N OFF 2013-1A S/N OFF 122909 TSN 12688 HR 11531 CY TSO 2326 HR 2086 CY TSI 2326 HR 2086 CY, BATTERY PACK 3 P/N OFF 2013-1A S/N OFF 87106 TSN 33464HR 32304 CY TSO 29594 HR 28482 CY TSI 2088 HR 1881 CY, BATTERY PACK 4 P/N OFF 2013-1A S/N OFF 79756 TSN 37292 HR 31964 CY TSO 2088 HR 1881 CY TSI 2088 HR 1881 CY.