IRImplementing rule
CS 25.1307Miscellaneous equipment
The following is required miscellaneous equipment:
(a)Reserved
(b)Two or more independent sources of electrical energy.
(c)Electrical protective devices, as prescribed in this CS-25.
(d)Two systems for two-way radio communications, with controls for each accessible from each pilot station, designed and installed so that failure of one system will not preclude operation of the other system. The use of a common antenna system is acceptable if adequate reliability is shown.
(e)Two systems for radio navigation, with controls for each accessible from each pilot station, designed and installed so that failure of one system will not preclude operation of the other system. The use of a common antenna system is acceptable if adequate reliability is shown.
IR · CS 25.1307 — CS-25 · ED Decision 2003/2/RM · CS-25 Easy Access Rules · EAR revision 26 Jan 2023