Document ID: chunk:federal_register_of_legislation:F2018C00889:reg:5:p42
Version: federal_register_of_legislation:F2018C00889
Segment Type: reg
Provision Reference: reg 5 (pt 42/51)
Character Range: 136596–139452

must be:
(a) a suitably scaled CDI; or
(b) a map display with a numeric indication of cross-track deviation with a resolution of 0.01 NM or less.
       7.4 Despite subclause 7.3 of this Appendix, for an RNP AR approach or departure with an RNP of not less than 0.3, there must be within the pilot's primary field of view:
(a) a map display; and
(b) a numeric display of cross-track deviation with a resolution of 0.1 NM or less.
       7.5 Despite subclause 7.3 of this Appendix, for an RNP AR approach or departure with an RNP of 0.3 or less, the means by which the flight crew monitor and manage cross-track deviations must be:
(a) demonstrated by the operator to be adequate for all normal and non‑normal conditions within the FTE appropriate to the RNP to be used; and
(b) arrived at only after operator consideration of relevant factors, including the following:
 (i) information displayed in the pilot's primary field of view;
 (ii) information displayed outside the pilot's primary field of view;
           (iii) the resolution, scaling, numeric and other cross-track indications available;
 (iv) the predictive display of aircraft flight path;
 (v) the crew procedures used to monitor and manage FTE;
 (vi) operator procedures for initiation of a missed approach;
 (vii) information provided by the aircraft manufacturer;
 (viii) simulator demonstration of FTE management.
       7.6 The navigation system is not required to provide an alert to the flight crew when GNSS updating is lost, provided there is an alert when the selected RNP no longer meets the criteria for continued navigation.
       7.7 Subject to subclause 7.8 of this Appendix, the system must provide LNAV guidance throughout a go-round conducted at any point in the approach.
Note   This function is commonly referred to as TOGA to LNAV.
       7.8 Where continuous LNAV guidance is not available, an alternative means is acceptable only if:
(a) each flight crew member receives specific training in accurate track‑keeping during a go-round; and
(b) the operator demonstrates to CASA that the lateral track can be accurately maintained under all normal and non-normal conditions.

8 Operational standards
       8.1Operating procedures for RNP AR must be in accordance with subclauses 8.2 to 8.17 of this Appendix.
Note   The operating procedures contained in ICAO Doc. 9613, Performance-based Navigation (PBN) Manual, Volume II, Part C, Chapter 6, Implementing RNP AR APCH do not apply and are replaced by the operating standards in clauses 9 to 23 of this Appendix.
       8.2 Subject to subclause 8.3 of this Appendix, before an RNP AR operation commences, availability of an RNP service must be predicted, taking into account relevant matters, including all of the following:
(a) aerodrome location;
(b) approach or departure operation;
(c) terrain masking;
(d) satellite