1. 8504. (1) The Federal Aviation Regulations require approval after compliance with the data of a Supplemen tal Type Certificate. (2) An installation of an item manufactured in accordance with the Technical Standard Order system requires no further approval for installation in a particular aircraft. Regarding the above statements, A. only No. 2 is true. B. neither No. 1 nor No. 2 is true. C. only No. 1 is true.