AFAIK todas as aeronaves acumulam água em seus tanques. Desde que você pede grandes aeronaves de acordo com wikipeadia:
Definição da FAA de grandes aeronaves
The US Federal Aviation Administration defines a large aircraft as any aircraft with a certificated maximum takeoff weight of more than 12,500 lb (5,700 kg)
Definição da EASA de grandes aeronaves
The European Aviation Safety Agency (EASA) defines a large aircraft as either "an aeroplane with a maximum take-off mass of more than 5,700 kilograms (12,600 pounds) or a multi-engined helicopter."
Aqui está o processo de drenagem do Airbus A340 com explicações no youtube
Aqui pode encontrar os regulamentos da EASA sobre a drenagem do link
Aqui estão os regulamentos da FAA sobre a drenagem de água link
Em FAA AC 20-125 p.7 estados
WATER REMOVAL/PREVENTION. Water is best removed from jet fuel by passing the through approved filtration/separation equipment. A two-hour settling period and the use of floating suction to drain fuel from the top of a storage tank are also recommended to help prevent water from being introduced into a fuel system. Water will readily settle-out of aviation gasoline; therefore, filters/separators are not required for water removal, however, they are necessary for removal of solids. The best means to minimize the amount of water entering a fuel system is the inspection and proper maintenance of equipment and the training of ground and flight personnel.
Também FAA AC 20-125, Água em Combustíveis de Aviação, parágrafo 7 c sugere que pode ser necessário balançar suavemente as asas de algumas aeronaves enquanto drena o poço para drenar completamente toda a água.