the landing and take-off area shall be designed to drain water and to prevent standing water becoming an unacceptable risk to aircraft operations;
beidh an limistéar tuirlingthe agus éirí de thalamh deartha sa chaoi go ndéanfar uisce a thaoscadh agus nach mbeidh uisce bodhar ina riosca do-ghlactha d'oibríochtaí na n-aerárthaí;