What was found
DESCENDING THROUGH FL240, RECEIVED OXY LO PRES, AND YELLOW XS THROUGH MULTIPLE INDICATORS: BAT 1 VOLTAGE, HYDRAULIC PRESSURE, FUEL FLOW, OIL TEMP/PRESSURE E1. ON LANDING ROLL RECEIVED E1 FUEL IMP BYP. UPON LANDING, POWER CYCLED BATTERIES, FAULTS REMAINED. POWERED ON WITH BATT 1 FIRST FOR A FEW MINUTES, AND IT HAD ENOUGH POWER TO BOOT UP THE AVIONICS. REPLACED ENGINE AIRFRAME INTERFACE UNIT. OPS CHECK GOOD. IAW EMB 505 AMM 31-41-03