notify the applicant in writing of its decision not to type approve the equipment or apparatus and shall provide reasons for such refusal. Revocation of type approval. 58. (1) The Commission may, on its own motion or upon a complaint by any person, conduct investigations regarding the working or use of any equipment or apparatus which has been given provisional or final type approval and may cancel such type approval where it of the view that(a) a licensee has violated provisional type approval conditions; (b) the equipment or apparatus is causing or is likely to cause harmful interference to telecommunications network or is a risk to human health or the environment. (2) Any person who is aggrieved by the decision of the Commission made under this Part may appeal to the Tribunal. Complaint procedures. 59. (1) Any person may make a representation in respect of the working of any equipment that has been type approved or may object to the type approval of any equipment and may submit such representation or objection to the Commission in writing stating(a) the name and address of the complainant; (a) the name (and address if known) of the person against whom the complaint is made; and (c) facts, including supporting data, where available, showing that the apparatus does not conform to the requirements of this Part and that the apparatus may cause harmful interference to telecommunications and radio communications network or is a risk to human health or the environment. (2) The Commission shall forward a copy of the representation or objection to the applicant or holder of a type 48