<simpleType name="CodeAirportWarningBaseType">
    <union>
        <simpleType>
            <restriction base="string">
                <enumeration value="WIP" />
                <enumeration value="EQUIP" />
                <enumeration value="BIRD" />
                <enumeration value="ANIMAL" />
                <enumeration value="RUBBER_REMOVAL" />
                <enumeration value="PARKED_ACFT" />
                <enumeration value="RESURFACING" />
                <enumeration value="PAVING" />
                <enumeration value="PAINTING" />
                <enumeration value="INSPECTION" />
                <enumeration value="GRASS_CUTTING" />
                <enumeration value="CALIBRATION" />
            </restriction>
        </simpleType>
        <simpleType>
            <restriction base="string">
                <pattern value="OTHER(:(\w|_){1,58})?" />
            </restriction>
        </simpleType>
    </union>
</simpleType>

• CodeAirportWarningBaseType
• aixm:CodeAirportWarningType
• aixm:warning
• aixm:warning
• aixm:warning