CASA 570/04 Instructions for use of the Global Navigation Satellite System (GNSS) by Qantas Airways Limited (Cth)
INSTRUMENT NUMBER: CASA 570/04
CIVIL AVIATION ACT 1988
CIVIL AVIATION REGULATIONS 1988
SUBREGULATION 179A (1)
INSTRUCTIONS FOR USE OF THE GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) BY QANTAS AIRWAYS LIMITED
I, BRUCE ROBERT GEMMELL, Deputy Chief Executive and Chief Operating Officer, a delegate of CASA, under subregulation 179A (1) of the Civil Aviation Regulations 1988 (CAR 1988):
(a)revoke instrument CASA 411/04; and
(b)issue the following instructions.
________________________
Application
1.1These instructions apply to the conduct of RNAV(GNSS) approaches by Qantas Airways Limited (Aviation Reference Number 216147) using an approved aircraft.
Interpretation
2.1In these instructions:
approved aircraft means an Australian registered Boeing 737-700 or Boeing 737-800 aeroplane, operated by Qantas, which is equipped with Dual Smiths Industries 4MCU Flight Management Computer Systems (P/N 171497-05-01) with software version 10.5 or any later version.
approved navigation data base means a navigation data base:
(a)published by a person approved for the purposes of paragraph 233 (1) (h) of CAR 1988; and
(b)on a medium approved by the manufacturer of an aircraft as suitable for use with the aircraft; and
(c)incapable of modification by the operator or flight crew of the aircraft in which it is installed.
ANP means the actual navigation performance of the aircraft as displayed to the flight crew by the aircraft’s FMS.
FMS means the flight management system of an aeroplane.
GNSS means the Global Navigation Satellite System, a satellite navigation system used by a pilot on board to determine position from satellite data.
ground based navigation aid means:
(a)non-directional beacon (NDB); or
(b)VHF omni-directional radio range (VOR); or
(c)distance measuring equipment (DME).
Qantas means Qantas Airways Limited (Aviation Reference Number 216147).
RNAV(GNSS) approach means an instrument approach using only lateral navigation information from the GNSS.
RNP means the required navigation performance as displayed to the flight crew by the FMS.
XTK means the cross-track error as displayed to the flight crew by the FMS.
Use of GNSS for RNAV(GNSS) approaches
3.1Instead of complying with the instructions set out in instrument CASA 112/03 and published in AIP GEN 1.5, paragraph 8.5.4, the flight crew of an approved aircraft operating under the I.F.R. may use GNSS in accordance with these instructions as a supplemental navigation system for a published RNAV(GNSS) approach, including a related missed approach procedure.
Procedures for conducting RNAV(GNSS) approaches
4.1Before departure, the pilot in command of an approved aircraft must plan for an instrument approach at the destination or alternate aerodrome, using a ground based navigation aid. An RNAV(GNSS) approach must not be used to satisfy any planning requirements for alternate aerodromes.
4.2Before commencing an RNAV(GNSS) approach in accordance with these instructions, the pilot in command must ensure that:
(a)at least one of the aircraft’s GNSS receivers is operational; and
(b)updating of the FMS by VOR and DME is inhibited; and
(c)the RNAV(GNSS) approach is loaded from the current approved navigation data base; and
(d)an RNP value of 0.15 (the RNP tolerance) is entered into the FMS.
4.3The pilot in command must not carry out a RNAV(GNSS) approach in controlled airspace unless he or she has obtained an air traffic control clearance to do so.
Specific procedures for RNAV(GNSS) approaches with Navigation Performance Scales
5.1At all times during an RNAV(GNSS) approach commenced in accordance with these instructions, the pilot in command must ensure, if the FMS includes navigation performance scales, that:
(a)the approach is flown by autopilot in LNAV mode; and
(b)the approach 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.
5.2The pilot in command must ensure that the RNAV(GNSS) approach is discontinued, if:
(a)the displayed ANP value exceeds 0.15; or
(b)the message UNABLE REQ NAV PERF — RNP is displayed; or
(c)the navigation performance scales indicate that the aircraft is outside the RNP tolerance.
Specific procedures for an RNAV(GNSS) approach without Navigation Performance Scales
6.1At all times during an RNAV(GNSS) approach commenced in accordance with these instructions, the pilot in command must ensure, if the FMS does not include navigation performance scales, that:
(a)the approach is flown by autopilot in LNAV mode; and
(b)the approach is flown in accordance with the current approved navigation data base setting out that approach; and
(c)at least one pilot has a navigation display set to a 10 mile map scale; and
(d)ANP and XTK are displayed to the pilot not flying the aircraft.
6.2The pilot in command must ensure that the RNAV(GNSS) approach is discontinued, if:
(a)the displayed ANP value exceeds 0.15; or
(b)the message UNABLE REQ NAV PERF — RNP is displayed; or
(c)the displayed XTK value exceeds 0.1; or
(d)the magenta trackline has deviated to the left or right tip of the aircraft symbol on the navigation display set to a 10 mile map scale.
Duration
7.1This instrument starts having effect on gazettal.
7.2Unless sooner revoked, this instrument stops having effect:
(a)if a Qantas AOC is not reissued — when that AOC expires; or
(b)if a Qantas AOC is reissued subject to a condition that is inconsistent with the continued application of this instrument to approved aircraft operated by Qantas — when that condition takes effect; or
(c)if a Qantas AOC is varied in a way that is inconsistent with the continued application of this instrument to approved aircraft operated by Qantas — when that variation takes effect.
[Signed B. Gemmell]
Bruce Gemmell
Deputy Chief Executive and
Chief Operating Officer
9 December 2004
0
0
0