CASA EX37/16 - Exemption — aircraft operating without carriage of Mode S transponder equipment (Global Ballooning Australia)

Administered by Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts

Legislation au F2016L00282 Not in force Legislative Instrument

Legislation content

Explanatory Statement

Civil Aviation Safety Regulations 1998

Exemption — aircraft operating without carriage of Mode S transponder equipment (Global Ballooning Australia)

 

Legislation

Section 98 of the Civil Aviation Act 1988 (the Act) empowers the Governor-General to make regulations for the safety of air navigation.

 

Subregulation 207 (2) of the Civil Aviation Regulations 1988 (CAR 1988) provides that a person must not use an Australian aircraft in a class of operation if it is not fitted with such instruments, or is not fitted with or carrying such equipment, as CASA has approved and directed. Under subregulation 5 (1) of CAR 1988, where CASA may issue directions under CAR 1988, it may do so in the form of a Civil Aviation Order (CAO).

 

CAO 20.18 sets out directions issued by CASA under regulation 207 of CAR 1988 in relation to the instruments and equipment to be carried on board aircraft. Paragraph 9E.2 of CAO 20.18 provides, among other things, that an aircraft first registered on or after 6 February 2014 that is operated in Class A, B, C or E airspace or above 10 000 feet above mean sea level in Class G airspace must carry a serviceable Mode S transponder that meets specified standards. Paragraph 9E.2 also applies to an aircraft that is modified by having its transponder installation replaced on or after 6 February 2014.

 

Under subregulation 11.160 (1) of the Civil Aviation Safety Regulations 1998 (CASR 1998), for subsection 98 (5A) of the Act, CASA may grant an exemption from a provision of a CAO in relation to matters affecting the safe navigation and operation of aircraft.

 

Under regulation 11.225 of CASR 1998, an exemption must be published on the Internet. Under subregulation 11.230 (1), an exemption ceases on the day specified within it (but no longer than 3 years after its commencement) or, if no day is specified, 3 years after commencement.

 

Under subsection 33 (3) of the Acts Interpretation Act 1901, where an Act confers a power to make, grant or issue any instrument of a legislative or administrative character (including rules, regulations or by-laws), the power shall be construed as including a power exercisable in the like manner and subject to the like conditions (if any) to repeal, rescind, revoke, amend, or vary any such instrument.

 

Background

Global Ballooning Australia Pty Ltd (the operator) is a Melbourne-based hot air balloon company that operates a fleet of hot air balloons. The fleet of balloons share a small number of transponders. The transponders are fitted to the basket of the balloon, but it is the balloon envelope – not the basket – that bears the aircraft registration marking. It is common for baskets (with variable size and passenger capacity) to be swapped between balloon envelopes to match the needs of each operation and, therefore, there is no specific association between a balloon envelope and a basket. Transponders fitted to baskets may also be removed from baskets and reinstalled in other baskets. 

 

The use of Mode S transponders require a 24-bit code to match the envelope registration marking for each flight, but given that baskets and fitted transponders frequently alternate between balloon envelopes, there is reasonable and ongoing commensurate risk that coding errors could be made, therefore, reducing aviation safety. The operator’s balloons are currently fitted with Mode A/C transponders that do not have the requirement for a 24-bit code but still allow visibility on air traffic control radar and by other aircraft equipped with traffic advisory systems. 

 

The operator operates 1 balloon registered after 6 February 2014 which is not compliant with the requirements of paragraph 9E.2 of CAO 20.18. The other balloons in the operator’s fleet were registered before 6 February 2014 but are, nevertheless, captured within the scope of paragraph 9E.2 by virtue of having their transponders replaced (that is, swapped with another balloon) on or after 6 February 2014 without being compliant with the Mode S transponder requirements.

 

The operator requested an exemption from the requirements of paragraph 9E.2 for balloon operations. CASA EX13/16 was issued on 20 January 2016 for this purpose, limited to the balloons in the operator’s fleet. However, the operator has since requested that CASA extend the scope of the exemption to apply to any balloon operated by the operator to allow for future additions to the operator’s fleet. CASA has considered the operator’s proposal and agrees that the intent of the exemption would not be diminished and there would be no significant adverse safety impact. The exemption would lead to a reduction in costs and operational complexity for the operator. The operator’s balloons will have at all times an operative Mode A/C transponder.

 

Instrument

CASA EX37/16 repeals and replaces CASA EX13/16, and applies to all balloons operated by the operator. The instrument exempts the operator’s balloons from complying with the Mode S transponder requirements in paragraph 9E.2 of CAO 20.18.

 

The exemption is subject to the condition that the operator must ensure that an exempted balloon carries a serviceable Mode A/C transponder in order for air traffic control to locate the balloon. It is also a condition that the operator must ensure all I.F.R. flight plans for the balloons operating in Australian airspace are annotated with the words “RMK/CASA MODE S EXEMPT” in Item 18 of the flight plan. A note has been inserted to advise that the Airservices Australia automated systems will reject a flight plan lodged for these aircraft without this annotation.

 

Legislative Instruments Act 2003 (the LIA)

Under regulation 5A of CAR 1988, if CASA has issued a CAO, and CASA later issues an exemption that affects the operation of the CAO, the later document is declared to be a disallowable instrument. Under subparagraph 6 (d) (i) of the LIA, an instrument is a legislative instrument for section 5 of the LIA if it is declared to be a disallowable instrument under legislation in force before the commencement of the LIA. CAR 1988 was in force before the commencement of the LIA.

 

This instrument affects the operation of paragraph 9E.2 of CAO 20.18 and is, therefore, a legislative instrument, subject to tabling and disallowance in the Parliament under sections 38 and 42 of the LIA.

 

Consultation

The operator has requested this revised exemption and has provided CASA with a satisfactory safety case. CASA consulted Airservices Australia on the proposed operations and the original exemption. It is CASA’s view that no further consultation under section 17 of the LIA is necessary or appropriate.

 

Statement of Compatibility with Human Rights

A Statement of Compatibility with Human Rights is at Attachment 1.

 

Office of Best Practice Regulation (OBPR)

A Regulation Impact Statement (RIS) is not required because the instrument is covered by a standing agreement between CASA and OBPR under which a RIS is not required for exemptions (OBPR id: 14507).

 

Making and commencement

The instrument has been made by the Director of Aviation Safety, on behalf of CASA, in accordance with subsection 73 (2) of the Act.

 

The instrument commences on the day of registration and expires at the end of December 2018, as if it had been repealed by another instrument.

 

[Instrument number CASA EX37/16]

Attachment 1

Statement of Compatibility with Human Rights

Prepared in accordance with Part 3 of the
Human Rights (Parliamentary Scrutiny) Act 2011

 

Exemption — aircraft operating without carriage of Mode S transponder
equipment (Global Ballooning Australia)

 

This legislative instrument is compatible with the human rights and freedoms recognised or declared in the international instruments listed in section 3 of the
Human Rights (Parliamentary Scrutiny) Act 2011.

 

Overview of the legislative instrument

The legislative instrument exempts all balloons operated by Global Ballooning Australia Pty Ltd (the operator) from compliance with paragraph 9E.2 of Civil Aviation Order 20.18, which requires the aircraft to be equipped with a serviceable Mode S transponder that meets specified standards.

 

The purpose of the instrument is to allow the operator and persons using the balloons to continue to operate the balloons without meeting equipment requirements that, due to the nature of the operator’s ballooning operations (such as switching transponders and baskets between different balloon envelopes), would increase the risk of transponder coding errors. The exemption is subject to conditions imposed in the interests of aviation safety.

 

Human rights implications

This legislative instrument does not engage any of the applicable rights or freedoms.

 

Conclusion

This legislative instrument is compatible with human rights as it does not raise any human rights issues.

Civil Aviation Safety Authority

Overview

The Civil Aviation Safety Regulations 1998, amended by CASA EX37/16, provide an exemption to Global Ballooning Australia Pty Ltd from certain requirements regarding the carriage of Mode S transponder equipment on their hot air balloons. The exemption was introduced to address the specific operational challenges faced by the company, where frequent swapping of baskets and transponders between different balloon envelopes posed a risk of coding errors that could compromise aviation safety. The exemption allows the company to continue operating their balloons without the need to comply with the requirement to carry a Mode S transponder, provided that a serviceable Mode A/C transponder is carried instead and flight plans are appropriately annotated. This legislative instrument was enacted by the Civil Aviation Safety Authority (CASA) under the authority conferred by Section 98 of the Civil Aviation Act 1988 and is subject to the disallowance process as outlined in the Legislative Instruments Act 2003. The policy objective of this exemption is to maintain safety standards while accommodating the unique operational needs of the company.

Scope and Application

The Civil Aviation Safety Regulations 1998 (CASR 1998) provide a framework for the safety of air navigation in Australia, empowering the Civil Aviation Safety Authority (CASA) to make regulations and issue exemptions to ensure the safe operation of aircraft. Section 98 of the Civil Aviation Act 1988 (the Act) authorises the Governor-General to make regulations for air navigation safety, and this is further detailed under subregulation 207(2) of the Civil Aviation Regulations 1998 (CAR 1998) which mandates that aircraft must be equipped with approved instruments and equipment. Specifically, under paragraph 9E.2 of Civil Aviation Order (CAO) 20.18, aircraft first registered on or after 6 February 2014 and operating in specified airspaces must carry a serviceable Mode S transponder. However, under subregulation 11.160(1) of CASR 1998, CASA can grant exemptions from CAO provisions to ensure safe navigation and operation of aircraft, subject to the conditions outlined in regulation 11.225 and 11.230 of CASR 1998. CASA EX37/16, issued on 20 January 2016, is such an exemption that applies to all balloons operated by Global Ballooning Australia Pty Ltd, exempting them from the Mode S transponder requirements of CAO 20.18. The exemption is subject to conditions that ensure aviation safety, including the requirement for the operator to maintain a serviceable Mode A/C transponder on all balloons and to annotate all instrument flight rules (IFR) flight plans with "RMK/CASA MODE S EXEMPT." This exemption aims to accommodate the unique operational practices of the operator while maintaining a safe level of air navigation.

Key Provisions

The Civil Aviation Safety Regulations 1998 (CASR 1998) empower the Civil Aviation Safety Authority (CASA) to grant exemptions from certain requirements of Civil Aviation Orders (CAO) where it is deemed safe to do so. In this instance, CASA EX37/16 exempts Global Ballooning Australia Pty Ltd from the requirement to carry a serviceable Mode S transponder on their balloons, as stipulated in paragraph 9E.2 of CAO 20.18 (paragraphs 1-3). This exemption applies to all balloons operated by Global Ballooning Australia, provided certain conditions are met. These conditions include ensuring that each balloon carries a serviceable Mode A/C transponder and that all flight plans for balloons operating in Australian airspace are annotated with "RMK/CASA MODE S EXEMPT" in Item 18 of the flight plan. The exemption imposes specific obligations on Global Ballooning Australia. The operator must ensure that each balloon carries a serviceable Mode A/C transponder, which is essential for air traffic control to locate the balloon. Furthermore, all flight plans for balloons operating in Australian airspace must be annotated with the required phrase. This annotation is critical as Airservices Australia's automated systems will reject any flight plan lodged for these aircraft without it (paragraphs 4-6). There are potential civil and criminal consequences for non-compliance with the conditions of the exemption. Any breach of the conditions imposed by CASA EX37/16 could lead to enforcement actions by CASA. While the specific penalties for non-compliance are not detailed in the exemption, CASA has the authority to take action under the Civil Aviation Act 1988, which may include fines, suspension, or revocation of the operator’s licence. Additionally, failure to comply with the safety conditions could result in increased risk to aviation safety, potentially leading to more severe regulatory and legal consequences (paragraphs 7-8).

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.