What was found
CABIN EMERG LIGHT: THE EMERGENCY LIGHTS UNDER SEAT 4R ARE ON WITH THE EMER LTS SWITCH IN THE ARM AND OFF. IN THE ON POSITION, ALL LIGHTS ARE ON, AS THEY SHOULD BE. PICTURE INCLUDED // SIGNOFF // VERIFIED DISCREPANCY. SWITCHED THE LIGHT FROM SEAT 4R WITH LIGHT FROM SEAT 3R. FAULT DID NOT FOLLOW. SWITCHED BACK AND GAINED ACCESS TO BOTH OF THE EMERGENCY BATTERIES PACKS. BOTH OF THE EMERGENCY BATTERY PACKS DID NOT HAVE A POPPED CB. PULLED BOTH CB'S AND LIGHTS DID NOT GO OFF. PLACED 2 BATTERY PACKS ON ORDER RETURNED AIRCRAFT BACK TO ITS ORGINAL CONDITION. WORK PERFORMED IAW CL-350 SMM 33-50-03 RECIEVED BATTERY PACK REMOVED FWD EMERGENCY LIGHT BATTERY PACK PN BR9767-001 SN C1145 DUE TO INTERNAL FAILURE INSTALLED NEW BATTERY PACK PN BR9767-001 SNC1692. POWERED UP A/C AND CHARGED BATTERY PACK AS REQUIRED PERFORMED OPS CHECKS AND CHECKS GOOD. WORK DONE IAW CL350 SMM 33-50-03 RETURNED A/C BACK TO ORGINAL POSITION