What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: (MCP) MODE CONTROL PANEL FAILED; AIRCRAFT DIVERTED TO AND LANDED SAFELY AT MSY. REMOVED AND REPLACED MCP (AALA202405090884), PER AMM 22-11-34. MCP FAULT CLEARED BUT CAME ACROSS FAULT BUS PWR CONTROL UNIT. REMOVED AND REPLACED FCC-B (M1876) (AALA202405141172), PER AMM 22-11-33. REMOVED AND REPLACED (BPCU) BUS POWER CONTROL UNIT (AALA202405140325), PER AMM 24-41-21. ALL OPS CHECK GOOD. NO DEFECTS NOTED.