What was found
DURING CRUISE EN ROUTE FROM PHX TO MSY AT 33000 FT AUTOPILOT DISCONNECTED DUE TO MODE CONTROL PANEL (MCP) FAILURE, FLIGHT DIRECTORS AND AUTOPILOT INOPERATIVE. ONLY WINDOW WORKING ON MCP WAS THE FIRST OFFICERS COARSE SELECTOR, FLIGHT INSTRUMENTS AND RADIO MAGNETIC INDICATOR WORKING FINE. DECLARED EMERGENCY AS PRECAUTION, AND ABANDONED APPROACH INTO MSY DUE TO WIND SHEAR, DIVERTED TO IAH. MAINTENANCE INSPECTED THE MCP AND CHECKED CONNECTIONS IAW BMM 22-11-34, PANEL FULLY OPERATIVE, COULD NOT DUPLICATE.