<simpleType name="CodeOperationManoeuvringAreaBaseType">
    <union>
        <simpleType>
            <restriction base="string">
                <enumeration value="LANDING" />
                <enumeration value="TAKEOFF" />
                <enumeration value="TOUCHGO" />
                <enumeration value="TRAIN_APPROACH" />
                <enumeration value="TAXIING" />
                <enumeration value="CROSSING" />
                <enumeration value="AIRSHOW" />
                <enumeration value="ALL" />
            </restriction>
        </simpleType>
        <simpleType>
            <restriction base="string">
                <pattern value="OTHER(:(\w|_){1,58})?" />
            </restriction>
        </simpleType>
    </union>
</simpleType>

• CodeOperationManoeuvringAreaBaseType
• aixm:CodeOperationManoeuvringAreaType
• aixm:operation