Possible restrictions after heavy rain or in case of snow falls. AD reserved for radio-equipped avions. Procedures and special instructions Taxiing prohibited except on piste and voie de circulation. Preferred QFU 219 due to environment. Towing avions : piste 04/22 with South side circuit. piste 14/32 with West side circuit. Special activities AEM on AD (NR 8324) : SFC - 900 ft AMSL / 575 ft ASFC, SR-SS.