<xs:complexType name="MaintenanceHistoryAttributeType">
    <xs:complexContent>
      <xs:extension base="uro:FacilityAttributeType">
        <xs:sequence>
          <xs:element name="maintenanceType" type="gml:CodeType"/>
          <xs:element name="maintenanceFiscalYear" minOccurs="0" type="xs:gYear"/>
          <xs:element name="maintenanceYear" minOccurs="0" type="xs:gYear"/>
          <xs:element name="maintenanceDate" minOccurs="0" type="xs:date"/>
          <xs:element name="status" minOccurs="0" type="xs:string"/>
          <xs:element name="description" minOccurs="0" type="gml:StringOrRefType"/>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>