If it appears to the Secretary of State or an authorised person that any aircraft is intended or likely to be flown in any of the circumstances specified in paragraph (2), the Secretary of State or that authorised person may make a direction in accordance with paragraph (3).

The circumstances referred to in paragraph (1) are where any provision of article 247, 250 or 252 would be contravened in relation to the flight.

If paragraph (1) applies, the Secretary of State or that authorised person may direct the operator or the pilot in command of the aircraft not to permit the aircraft to make a particular flight or any other flight of such description as may be specified in the direction until the direction has been revoked by the Secretary of State or by an authorised person.

The Secretary of State or any authorised person may take such steps as are necessary to detain an aircraft concerning which a direction has been made under paragraph (1).

For the purposes of paragraph (1), the Secretary of State or any authorised person may enter any aerodrome and may enter and inspect any aircraft.