What was found
AFTER PREFLIGHT SET UP, RECEIVED LEVEL 1 ALERT, EMER PWR ON, RETRIED EMER POWER CHECK WITH NO RESULTS. TROUBLESHOOT CHECKED IAW FIM 24-24-00. PULLED POWER FROM ACFT, DISCONNECTED BATTERY, RECONNECTED BATTERY IAW MM 24-34-01-4. RECONNECTED GND POWER & CYCLED ALL THREE FUEL LEVERS. PERFORMED RTS OF EPCU, TEST PASSED. EMER POWER OPERATIONS CHECKED OK.