CASA 19/06 - Instructions – RNAV (RNP-AR) approaches and departures

Instrument number CASA 19/06 — Instructions – RNAV (RNP-AR) approaches and departures

as amended

made under the Civil Aviation Regulations 1988 and Civil Aviation Order 20.7.1B.

This compilation was prepared on 6 December 2006 taking into account amendments up to CASA 433/06.

Prepared by the Legislative Drafting Branch, Legal Services Group, Civil Aviation Safety Authority, Canberra.

Instructions — RNAV (RNP-AR) approaches and departures

1 Duration

 This instrument:

(a) commences on the day after it is registered; and

(b) stops having effect at the end of 31 January 2008.

2 Dictionary

 A dictionary for this instrument is in Schedule 4.

3 Application

 The instructions in Schedule 1 apply to an RNAV (RNP-AR) approach or departure in I.M.C. under the I.F.R.

4 Instructions

 The instructions in Schedule 1 are issued.

5 Exemption

 (1)This exemption applies for the trial mentioned in Schedule 2.

 (2)Qantas is exempt from compliance with subparagraph (a) (ii) of the definitions of authorised instrument approach procedure and authorised instrument departure procedure in subregulation 178 (7) of CAR 1988.

6 Application — approval and specification

 Section 7 applies to the conduct of the trial mentioned in Schedule 2.

7 Approval and specification for CAO 20.7.1B

 (1)For the definition of RNP-capable aeroplane in paragraph 3.1 of CAO 20.7.1B, Boeing 737-800 aeroplanes operated by Qantas on RNAV (RNP-AR) IAP and IDP are approved for area navigation (RNAV).

 (2)For subparagraph 12.1.1 (b) and paragraph 12A.5 of CAO 20.7.1B:

(a) the trial mentioned in Schedule 2 is an approved RNP operation; and

(b) the appropriate RNP containment is at least 2 times the RNP type specified in an approved aircraft’s AFM for the procedure.

Schedule 1 Instructions

 1 For an RNAV (RNP-AR) approach or departure, the pilot in command of the aircraft must use the authorised RNAV (RNP-AR) IAP or IDP.

 2 The pilot in command may use an authorised RNAV (RNP-AR) IAP or IDP only when conducting an RNAV (RNP-AR) approach or departure for, and in accordance with, the Qantas trial.

Schedule 2 Qantas trial

  The Qantas trial is the trial of authorised RNAV (RNP-AR) IAP and IDP that:

(a) is described in the Qantas proposal accepted by CASA; and

(b) complies with the conditions mentioned in Schedule 3.

Schedule 3 Conditions of the Qantas trial

 1 An RNAV (RNP-AR) approach or departure may only be conducted:

(a) by an approved pilot flying in a manner consistent with his or her level of training for the approach or departure being undertaken; and

(b) in a Qantas Boeing 737-800 aircraft that is an RNP-AR capable aeroplane for that approach or departure as identified in the AFM.

 2 Subject to clause 3, an operation involving an RNAV (RNP-AR) approach or departure must be in accordance with the Qantas proposal and this instrument.

 3 The Qantas proposal, and operations in accordance with it, may be amended only with the approval of CASA.

 4 Subject to clause 5, an RNAV (RNP-AR) approach must be conducted at no lower than the RNAV (RNP-AR) decision altitude identified on the authorised RNAV (RNP-AR) IAP for the approach.

 5An RNAV (RNP-AR) approach must be conducted at no lower than RNP limitation identified in the approved aircraft’s AFM for the approach being undertaken.

Note   Although the authorised RNAV (RNP-AR) IAP for the approach may permit a lower decision altitude under clause 4, the actual altitude must not be lower than the RNP capability of the aircraft at the time of the operation, taking into account unserviceabilities etc.

 6An RNAV (RNP-AR) departure must be conducted using an RNP type not less than the RNP limitation identified in the approved aircraft’s AFM for the departure being undertaken.

 7 Qantas must allow CASA, on request, to attend:

(a) any simulator training undertaken for RNAV (RNP-AR) approaches and departures; and

(b) any line flight that includes an RNAV (RNP-AR) approach or departure.

 8 At intervals not exceeding 3 months, Qantas must report to CASA in writing the number of RNAV (RNP-AR) approaches and departures flown and, for each of them, each of the following events that occurred after passing the initial approach fix:

(a) UNABLE REQ NAV PERF — RNP messages;

(b) XTK error exceeds 0.05 NM;

(c) vertical deviation exceeding 100 ft above or 40 ft below the VNAV path;

(d) EGPWS warning;

(e) autoflight system disconnect;

(f) nav data errors;

(g) pilot report of any anomaly.

 9 Qantas must:

(a) prepare an incident form and a feedback form for authorised RNAV (RNP‑AR) IAP and IDP; and

(b) tell the flight crew, and other persons involved in such an operation, about the forms and make them available to those people; and

(c) encourage them to complete the forms, without fear or favour, for Qantas reports to CASA.

 10Qantas must immediately tell CASA of any matter concerning an authorised RNAV (RNP-AR) IAP or IDP that relates to the safety of such approaches or departures.

 11 An authorised RNAV (RNP-AR) IAP or IDP must not be used to satisfy any planning requirements for alternate aerodromes.

 12 Before commencing an authorised RNAV (RNP-AR) IAP or IDP, the pilot in command must ensure that:

(a) at least 1 of the approved aircraft’s GNSS receivers is operational; and

(b) updating of the FMS by DME is inhibited; and

(c) the RNP type for the approach or departure is loaded from the current approved navigation data base and selected by the flight crew.

 13 At all times during an authorised RNAV (RNP-AR) IAP or IDP, the pilot in command must ensure that:

(a) the approach or departure is flown by autopilot in LNAV and VNAV mode; and

(b) the approach or departure is flown in accordance with the current approved navigation data base setting out that approach; and

(c) navigation performance scales showing the ANP are displayed to both pilots.

 14 Before the trial begins for an aerodrome, Qantas must give CASA a study, acceptable to CASA, of:

(a) the likely environmental effects of the conduct of the trial at the aerodrome; and

(b) the measures that would be taken by Qantas to mitigate those effects.

 15 It is a condition of the trial that each of the measures mentioned in paragraph 14 (b) that is acceptable to CASA is complied with.

Schedule 4 Dictionary

 In this instrument:

AFM means aircraft flight manual.

ANP means the actual navigation performance of the aircraft as displayed to the flight crew by the FMS.

approved aircraft means an RNP-capable Boeing 737-800 aeroplane operated by Qantas for the purposes of the trial mentioned in Schedule 2.

approved navigation data base means a navigation data base:

(a) on a medium approved by the manufacturer of an approved aircraft as suitable for use with the aircraft; and

(b) incapable of modification by the operator or flight crew of the approved aircraft in which it is installed.

approved pilot means a pilot, employed by Qantas, who has been trained by the approved Qantas CAR 217 training and checking organisation to conduct RNAV (RNP-AR) approaches and departures in accordance with the Qantas Operations Manual.

authorised RNAV (RNP-AR) IAP means an RNAV (RNP-AR) instrument approach procedure designed by a certified designer under Part 173 of the Civil Aviation Safety Regulations 1998 (CASR 1998), with charts clearly marked “FOR CASA APPROVED OPERATORS ONLY”.

authorised RNAV (RNP-AR) IDP means an RNAV (RNP-AR) instrument departure procedure designed by a certified designer under Part 173 of CASR 1998, with charts clearly marked “FOR CASA APPROVED OPERATORS ONLY”.

DME means distance measuring equipment.

FMS means the flight management system (of an aeroplane).

GNSS means the Global Navigation Satellite System, a satellite system used by the pilot on board an aircraft to determine position from satellite data.

Qantas means Qantas Airways Limited (Aviation Reference Number 216147).

Qantas proposal means the Australian Airports RNP-AR RNAV implementation proposal contained in the document titled Qantas B737-800 RNP RNAV Implementation Australian Airports as amended from time to time with the approval of CASA.

Qantas trial means the trial mentioned in Schedule 2.

RNAV means an Area Navigation System.

RNAV (RNP-AR) approach means an RNAV (RNP-AR) instrument approach in IMC under the I.F.R. for which authorisation is required in Australia.

RNAV (RNP-AR) departure means an RNAV (RNP-AR) instrument departure in I.M.C. under the I.F.R. for which authorisation is required in Australia.

RNP means the required navigation performance as displayed to the flight crew by the FMS.

RNP-capable aeroplane means an aeroplane:

(a) that is approved for area navigation (RNAV); and

(b) that meets the RNP capability necessary for an approved RNP operation in accordance with the aeroplane’s flight manual; and

(c) whose FMS permits the RNP type to be selected and displayed to the flight crew.

RNP type means a level of navigation performance capability expressed in nautical miles and specified in the approved aircraft’s AFM to indicate the minimum navigation system requirements needed to operate in an area, on a route or in a procedure.

Example   RNP 0.3.

XTK error means the cross-track difference between the indicated position of the approved aircraft and the planned position as displayed to the flight crew by the FMS.

Notes to CASA 19/06 — Instructions – RNAV (RNP-AR) approaches and departures

Note 1

CASA 19/06 — Instructions – RNAV (RNP-AR) approaches and departures (in force under subregulations 179A (1) and 308 (1) of the Civil Aviation Regulations 1988 and paragraph 3.1, subparagraph 12.1.1 (b) and paragraph 12A.5 of Civil Aviation Order 20.7.1B) as shown in this compilation is amended as indicated in the tables below.

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