Communication and navigation equipment for operations under VFR over routes not navigated by pilotage or for operations under IFR or over the top.

CFR · 2024-01-01 · US · Title 14

(a) (1) The en route navigation aids necessary for navigating the airplane along the route (e.g., ATS routes, arrival and departure routes, and instrument approach procedures, including missed approach procedures if a missed approach routing is specified in the procedure) are available and suitable for use by the aircraft navigation systems required by this section; (2) The airplane used in those operations is equipped with at least— (i) Except as provided in paragraph (c) of this section, two approved independent navigation systems suitable for navigating the airplane along the route to be flown within the degree of accuracy required for ATC; (ii) One marker beacon receiver providing visual and aural signals; and (iii) One ILS receiver; and (3) Any RNAV system used to meet the navigation equipment requirements of this section is authorized in the certificate holder's operations specifications. (b) (1) At least two independent communication systems necessary under normal operating conditions to fulfill the functions specified in § 121.347 (a); and (2) At least one of the communication systems required by paragraph (b)(1) of this section must have two-way voice communication capability. (c) (1) It can be shown that the airplane is equipped with at least one other independent navigation system suitable, in the event of loss of the navigation capability of the single independent navigation system permitted by this paragraph at any point along the route, for proceeding safely to

official document · source cfr-2024 · id 14:§ 121.349