The owner or operator of an aircraft, when passengers or cargo are on board such aircraft, shall ensure that no person—
(a) simulates emergency situations in the aircraft affecting the flight characteristics of such aircraft;
(b) conducts flight testing for the initial skills test or renewal of an instrument rating;
(c) conducts any flight or skills test other than a route proficiency test; or
(d) conducts any skills test for a class or type rating.