3790

NEW ZEALAND GAZETTE, No. 153

25 NOVEMBER 2004

DCA/CESS150/141
DCA/CESS170/111
DCA/CESS172/162
DCA/CESS177/29
DCA/CESS175/4
DCA/CESS180/144
DCA/CESS182/140
DCA/CESS185/144
DCA/CESS206/144
DCA/CESS207/26
DCA/CESS210/32
DCA/CESS337/12
DCA/N22/17B
DCA/BELL206/78A
DCA/EAGLE/6
DCA/BAL/17
DCA/BAL/18
DCA/GEN/32

These airworthiness directives shall come into force on 25 November 2004.

Airworthiness directives may be viewed on the CAA web site (www.caa.govt.nz) or at Aviation House, 10 Hutt Road, Petone.

Dated this 23rd day of November 2004.

JOHN D. STANTON, Continuing Airworthiness Specialist.

au7887

Land Transport Safety Authority

Traffic Regulations 1976

Automotive CNG Fuel Cylinder Approval

Pursuant to Regulation 90B of the Traffic Regulations 1976, and pursuant to the powers delegated to me by the Director of Land Transport Safety, I, John Andrew Justice, Principal Vehicle Engineer, Safer Vehicles Policy, hereby approve the CNG fuel cylinders in the Schedule hereto for inclusion in any CNG automotive fuel system installed and operated in accordance with the requirements of Australian/New Zealand Standard AS/NZS 2739:2003, subject to the conditions of approval set out in this notice.

Schedule

This approval only applies to cylinders as specified on the following drawing:

NZ-267-300-890 Rev.0 (covering models: 267/25, 26, 28, 30, 32, 34, 37, 40, 44, 45, 47, 50, 54, 55, 60, 65, 70, 75 and 80).

Conditions of Approval

These automotive CNG fuel cylinders are approved subject to the following conditions:

1. That they comply with all the design, performance and test requirements of New Zealand Standard NZS 5454:1989 as applicable to all-metal steel cylinders.

2. That they be provided with a cylinder shut-off valve designed for the cylinder working pressure and compatible with the test pressure of the cylinder. Cylinder shut-off valves shall be fitted with a handwheel to facilitate ease of opening and closing of the valve and shall be fitted with a pressure relief device, which remains in contact with the gas contained in the cylinder whether the handwheel is in the open or closed position, comprising a burst disc backed with a fusible alloy plug having a nominal melt temperature of 100°C. Should the alloy plug melt, the burst disc shall yield at a pressure of not less than 24.7MPa and not more than 30.0MPa, otherwise it shall remain inoperative. Cylinder valves shall be provided with an outlet thread of ¼” NPT (female) and a stem thread compatible with the cylinder neck thread.

3. That they are tested at periods not exceeding five years, in accordance with the requirements of Australian Standard AS 2337.1.

4. That the cylinder markings are in accordance with section 9 of New Zealand Standard NZS 5454:1989.

5. That the neck threads meet the specification required for the market the cylinders are manufactured for.

Signed at Wellington this 22nd day of November 2004.

J. A. JUSTICE, Principal Vehicle Engineer, Safer Vehicles Policy.

(VP50-70)

au7853

LPG and CNG Automotive Fuel System Installation and Operation Standards

Pursuant to Regulation 90B of the Traffic Regulations 1976, and under delegated authority, I, John Andrew Justice, Principal Vehicle Engineer, Safer Vehicles Policy, approve any alternative fuel system installed on or after 1 July 2005, provided the installation and operation complies with the requirements of the applicable AS/NZS standard specified in Schedule 1.

I also approve any alternative fuel system installed prior to 1 July 2005, provided that such system is or was installed in accordance with the applicable standard specified in Schedule 1.

No system installed on or after 1 July 2005, may be installed and/or operated in accordance with the requirements of the applicable standard specified in Schedule 2.

Any alternative fuel system installed prior to 1 July 2005 in accordance with the applicable standard specified in Schedule 2, but modified on or after 1 July 2005, must be brought into compliance with the applicable standard specified in Schedule 1.

Schedule 1

AS/NZS 1425:2003 – LP Gas fuel systems for vehicle engines

AS/NZS 2739:2003 – Natural gas (CNG) fuel systems for vehicle engines