What was found
MAIN EXIT SIGN/LIGHT: THE MAIN CABIN DOOR EMERGENCY EXIT SIGN IS INOP ALONG WITH THE EXIT SIGNS ON EACH SIDE OF THE DOOR WITH BATTERIES OFF AND EMERGENCY LIGHT SWITCH ON. THEY ARE ALSO INOP WITH THE APU RUNNING, EMERGENCY LIGHT SWITCH SET TO ARM AND PAX SAFETY SWITH ON. REPLACED #1 EMERGENCY LIGHTING BATTERY FUSE AND PERFORMED OPS CHECKS WITH NO DEFECTS NOTED. SWAPPED #1 BATTERY PACK WITH #3 BATTERY PACK IAW AMM 33-50-10