Installation provisions determined to be necessary on the basis of the degree of compliance with the foreign object ingestion demonstration requirements of Appendix 1, 7.12. Limitations on APU windmilling and capabilities of anti-rotation devices provided under Appendix 1, 6.22. Calibration data obtained under Appendix 1, 7.2. The physical details of the APU shall be defined by a list of components and equipment. Thus, if the voltage, timing, current, etc., for a starter or igniter plug can be specified the items required to provide this electrical input need not be included.
Similar considerations apply to inputs of fuel, air, etc.
4.1 Group 1 equipment. The equipment shall be designed to conform with specifications acceptable to the Authority. Conformity with the specifications shall be certified by an organisation accepted by the Authority for the purpose. 4.2 Group 2 equipment.