With reference to his reply to question 2551 on 4 September 2017 pertaining to the grounding of aircraft on 18 August 2017 and 19 August 2017, (a) why was the SAA aircraft in question not in possession of a Foreign Operator’s Permit, (b) what is being done to ensure that this is not repeated and (c) what audit has been conducted to ensure that all aircraft have up-to-date Foreign Operator’s Permits in future?