Section 51, Civil Aviation Act, 2017 for an effective aviation safety and security

(1) The Director-General shall have the power to directthe owner, operator, pilot in command or other member of the flight operating crew not to fly or operate an aircraft where, in the opinion of the Director-General - (a) the aircraft is not airworthy; (b) the pilot in command or member of the flight operating crew is not qualified or is not physically or mentally capable to operate the aircraft for flight; or is under the influence of alcohol or psychoactive substance; (c) the operation poses or may cause imminent danger to persons or property on the ground. (d) the operator of the aircraft is not in possesion of the appropriate authorizations for the (2) The Director-General may, subject to subsection (1) take such steps as are necessary to detain such aircraft, pilot in command or member of the flight operating crew of the aircraft.