What was found
DURING CRUISE FLIGHT, A PROXI SYSTEM FAIL WARNING MESSAGE WAS NOTED BY THE CREW. AN EMERGENCY WAS NOT DECLARED, BUT THE CREW REQUESTED EMERGENCY EQUIPMENT UPON ARRIVAL. MX INSPECTED AND REPLACED THE PROXI SWITCH ELECTRONIC CONTROL UNIT, AND RETURNED THE A/C TO SERVICE. LATER DURING THE SECOND ATTEMPT TO COMPLETE THE FLT, ANOTHER PROXI WARNING MESSAGE ILLUMINATED. THE A/C RETURNED TO PIT FIELD A SECOND TIME. MX INSPECTED AND REPLACED THE SERVICE DOOR OVER CENTER PROXI SWITCH 4MC, IN ACCORDANCE WITH DORNIER MM 32-61-02. FUNCTION CHECKS, AND AN OPS CHECK FLIGHT, WERE COMPLETED WITH SATISFACTORY RESULTS. THE A/C WAS THEN RETURNED TO SERVICE.