CASA 21/16 Instructions — RNP as primary means of navigation for NDB, VOR or DME overlay approaches (Skytraders A319 aircraft) (Cth)

Instrument number CASA 21/16

I, GERARD JOHN CAMPBELL, Executive Manager, Operations Division, a delegate of CASA, make this instrument under regulation 179A of the Civil Aviation Regulations 1988.

[Signed G.J. Campbell]

Gerard J. Campbell
Executive Manager
Operations Division

22 February 2016

Instructions — RNP as primary means of navigation for NDB, VOR or DME overlay approaches (Skytraders A319 aircraft)

1          Duration

                 This instrument:

(a)   commences on 1 March 2016; and

(b)   expires at the end of February 2019, as if it had been repealed by another instrument.

2          Revocation

                 Instrument number CASA 31/13 is repealed.

3          Application

                 This instrument applies to the conduct of non-precision approach procedures (excluding LLZ approaches) by Skytraders Pty Ltd, Aviation Reference Number 414306 (Skytraders), in A319 aircraft with an RNP-capable RNAV system.

4          Instructions

                 I issue the instructions in Schedule 1.

5          Definitions

                 In this instrument:

AFM means the aircraft flight manual.

approved navigation database means a navigation database on a medium approved by the manufacturer of the aircraft as suitable for use with the aircraft.

FCOM means Flight Crew Operating Manual.

FMC means flight management computer.

FMS means the aircraft’s flight management system.

non-precision approach means an instrument approach which uses lateral guidance but not vertical guidance.

overlay approach means the conduct of a non-precision approach procedure, designed for a ground-based radio aid (NDB, VOR or DME ) using the FMC‑generated RNP solution for primary navigation of the aircraft.

RNP means the required navigation performance for the commencement and continuation of an approach as displayed to the flight crew by the FMS.

RNP-capable RNAV system means an area navigation system fitted to an aircraft for which the AFM for the aircraft states that it is capable of meeting RNP 0.3 (or lower, as required) requirements.

Schedule 1          Instructions

        1     An A319 aircraft operated by Skytraders under the I.F.R. may use an RNP-capable RNAV system in accordance with these instructions to conduct overlay approaches.

        2     Overlay approaches may still be flown without:

(a)   the referenced ground-based navigation aid being operational or geographically in position; or

(b)   the relevant onboard navigation aid receiver being installed or serviceable.

        3     The procedure to be flown by the flight crew must be extracted from an approved navigation database.

        4     The approach must be flown in accordance with Airbus standard operating procedures for non-precision approach as set out in the Airbus Skytraders FCOM.

        5     The approach must not be flown if:

(a)   the underlying navigation aid has been decommissioned; or

(b)   the instrument approach for the navigation aid has been withdrawn.

        6     Skytraders’ policy, procedures and limitations on the use of RNP as the primary means of navigation for overlay approaches must be included in Skytraders’ operations manual.

        7     Skytraders must inform CASA if any condition, operational bulletin, airworthiness directive or AFM amendment change or affect this instrument.