What was found
EMERGENCY LIGHTING: WITH BATTERIES CONNECTED BUT TURNED OFF, THE EMER LTS DO NOT ILLUMINATE IN THE ARM POSITION. HOWEVER, THEY DO ILLUMINATE WHEN IN THE ON POSITION. CORRECTIVE ACTION: REMOVED ALL 4 EMER LIGHTING BATTERY PACKS NOT HOLDING CHARGE AND REPLACED WITH NEW UNITS IN REF TO CE-680A AMM 33-50-06, BATTERIES CHARGED. SYS OP CK GOOD. EMER BATT #1 (PN OFF: CBS28-1 / SN OFF: 3954M, PN ON: 6430028-1 / SN ON: C25-10143) EMER BATT #2 (PN OFF: CBS28-1 / SN OFF: 3583M, PN ON: 6430028-1 / SN ON: C25-10141) EMER BATT #1 (PN OFF: CBS28-1 / SN OFF: 4366M, PN ON: 6430028-1 / SN ON: C25-10142) EMER BATT #2 (PN OFF: CBS28-1 / SN OFF: 3092M, PN ON: 6430028-1 / SN ON: C25-10146)