Civil Aviation Order 20.91 (Instructions and directions for performance-based navigation) Instrument 2014
10Certain aircraft are deemed to be approved for navigation specifications in Appendices 1, 2, 3, 4 and 6
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10 Certain aircraft are deemed to be approved for navigation specifications in Appendices 1, 2, 3, 4 and 6
10.1Subject to compliance with paragraphs 10.2 and 10.3, an Australian aircraft is deemed to be approved for navigation in accordance with any of the following navigation specifications:
(e) RNP APCH-LNAV;
(f) RNP APCH-LNAV/VNAV;
(g) RNP APCH-LP or RNP APCH-LPV.
10.2 The aircraft must be equipped with:
(a) a GNSS stand-alone system with en route, terminal and NPA capability having (E)TSO-C129a authorisation for Class A1; or
(b) a GNSS stand-alone system with en route, terminal and NPA capability having (E)TSO-C146 Class Gamma and operational Class 1, 2 or 3; or
(c) an integrated avionics system using a GNSS sensor with (E)TSO‑C129a Class B1 or C1 or (E)TSO-C145 Class Beta and operational Class 1, 2 or 3 authorisation as the only primary sensor input to the area navigation function that is accepted as a stand‑alone system for this subsection.
Note The integrated avionics systems referred to in subparagraph 10.2 (b) are those systems typically installed in US 14 CFR/EASA CS Part 23 or Part 27 aircraft that combine flight displays, communications, radio navigation (VOR and ILS) and area navigation into a single integrated system. (E)TSO C115 multi-sensor systems that utilise independent discrete sensor inputs are not addressed under this subsection.
10.3The aircraft is approved for navigation during a flight in accordance with a navigation specification mentioned in paragraph 10.1 if the AFM or AFMS for the aircraft, as published at the time of the flight, states that the aircraft:
(b) has the GPS capability mentioned in an item of the Table that corresponds to the navigation specification.
| GPS capability(Column 1) | Navigation specification(Column 2) | |
|---|---|---|
| 1 | GPS RNAV EN ROUTE | RNAV 5; RNAV 2 or RNP 2 |
| 2 | GPS RNAV TERMINAL | RNAV 1 or RNP 1 |
| 3 | GPS RNAV NON-PRECISION APPROACH | RNP APCH-LNAV |
| 4 | GPS RNAV LP | RNP APCH-LP |
| 5 | GPS RNAV LPV | RNP APCH-LPV |
Note For example, for the purposes of subparagraph 10.3 (b), if the AFM or AFMS for an aircraft states that the aircraft is capable of GPS RNAV NON-PRECISION APPROACH (a “GPS capability”), then the aircraft would be approved to navigate in accordance with RNP APCH-LNAV (the corresponding “navigation specification”).