What was found
NO EMERGENCY LIGHTS ILLUMINATE WITH EMERGENCY LIGHT SWITCH IN ON POSITION. POWERED ON AC AND ALLOWED ALL SYSTEMS BOOT UP AS REQUIRED. PERFORMED OPS CHECK, OPS CHECK FAILED, CONFIRMED DISCREPANCY. ACCESSED #3 & #4 BATTERY PACKS. REPOSITIONED #3 BATTERY POWER SUPPLY ASSY IAW CUSTOMER REQUEST. INSTALLED SERVICEABLE BATTERY POWER SUPPLY ASSY IAW AMM 33-50-05. REPOSITIONED #4 BATTERY POWER SUPPLY ASSY IAW CUSTOMER REQUEST. INSTALLED SERVICEABLE BATTERY POWER SUPPLY ASSY IAW AMM 33-50-05. PERFORMED AND FOUND OPERATIONAL TEST SATISFACTORY. ACCOMPLISHED TC-FLT-33-1001 TO SUPPLEMENT MX. ITEM GOOD TO RTS. 15DEC2023