Document ID: chunk:federal_register_of_legislation:F2018C00889:reg:5:p6
Version: federal_register_of_legislation:F2018C00889
Segment Type: reg
Provision Reference: reg 5 (pt 6/51)
Character Range: 40738–43557

or
(c) (E)TSO-C146 Class Gamma and operational Class 1, 2 or 3; or
       (d) standards that CASA considers are equivalent to the standards mentioned in subparagraph (a), (b) or (c).
       16.4 An aircraft is eligible for oceanic/remote continental airspace operations where the routes or airspace being used are not designated as RNP 10, RNP 4, RNP 2 or other navigation specification if the aircraft is equipped with dual independent multi-sensor systems (for example, FMS) with GNSS equipment that is certified by the State of Manufacture for en route operations, installed in accordance with FAA AC 20‑138D, and meets:
(a) the requirements of (E)TSO-C115b FMS and 1 of the following:
 (i) (E)TSO-C129 ( ) sensor Class B or C and the equipment is certified as complying with the requirements of FAA Notice 8110.60;
 (ii) (E)TSO-C129 ( ) sensor Class B or C and the equipment is certified as complying with the requirements of FAA Advisory Circular 20-138D Appendix 1;
 (iii) (E)TSO-C145 ( ) Class Beta and operational class 1, 2 or 3;
 (iv) (E)TSO-C196 ( ); or
(b) standards that CASA considers are equivalent to the standards mentioned in subparagraph (a).
       16.5 If the GNSS receiver has the capability for barometric aiding, this capability must be connected and operative.

17 Use of suitable area navigation systems on conventional routes and procedures
       17.1 While operating on, or transitioning to, conventional routes and procedures (not RNAV or RNP), provided that the requirements in Appendix 13 are complied with, operators may use a suitable GNSS‑based area navigation system as either:
(a) a substitute means of navigation when a conventional navigation aid is not available, or the aircraft is not equipped with an ADF, VOR or DME or the installed ADF, VOR or DME is inoperative; or
(b) as an alternate means of navigation when a conventional navigation aid is operative and the aircraft is equipped with operative equipment that is compatible with the conventional navigation aids.
       17.2 A suitable GNSS-based area navigation system may be used as a substitute or alternate to the following conventional navigation aids:
(a) VOR; or
(b) DME; or
(c) VOR/DME; or
(d) NDB; or
(e) Outer Marker; or
(f) Middle Marker.
       17.3 Appendix 13 details the requirements for a suitable GNSS-based area navigation system to be used as a substitute or alternate to the conventional navigation aids listed above when an aircraft is operating in the en route, terminal operations (SID or STAR) or approach operations phases of flight.
       17.4 Before using a GNSS-based area navigation system as a substitute or alternate to the conventional navigation aids for terminal operations (SID or STAR) or approach operations phases of flight, the operator or pilot must verify that:
(a) the intended