AD/HILLER 12/6 - Superseded by AD/HILLER 12/11

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

Legislation au F2006B10369 Not in force Legislative Instrument

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 


Hiller UH-12 Series Helicopters

 

AD/HILLER 12/6 Superseded by AD/HILLER 12/11 4/63

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overview

The Civil Aviation Regulations 1998 (Cth), specifically within Part 39 - 105, addresses the critical area of maintaining airworthiness of aircraft through the issuance of Airworthiness Directives. This legislative instrument, issued under the authority of the Civil Aviation Safety Authority (CASA), serves to ensure that aircraft remain in a condition that is safe for operation. In the context of the Hiller UH-12 Series Helicopters, the directive AD/HILLER 12/6, although superseded by AD/HILLER 12/11 dated 4/63, was introduced to address specific safety concerns identified with the aircraft model. The overarching policy objective of these directives is to enhance aviation safety by requiring compliance with specific maintenance, repair, and inspection standards, thereby mitigating the risk of accidents and ensuring the integrity of the aviation system. This regulatory framework is instrumental in upholding the high safety standards expected in Australian civil aviation.

Scope and Application

The Civil Aviation Regulations 1998, specifically PART 39 - 105, applies to all persons and entities involved in the operation of Hiller UH-12 Series Helicopters within the Australian jurisdiction. This includes helicopter operators, maintenance providers, and pilots who are subject to compliance with airworthiness directives issued by the Civil Aviation Safety Authority (CASA). The geographic reach of this regulation is national, encompassing all states and territories within Australia. The directive pertains to the maintenance, repair, and operational standards of these helicopters, ensuring they meet prescribed safety criteria. Any deviation from the stipulated airworthiness directives may result in non-compliance, with potential enforcement actions taken by CASA. Notably, while this regulation sets out mandatory requirements, certain exclusions and exemptions might apply, particularly in cases of emergency or operational necessity, as determined by CASA. Subordinate instruments may further define or modify the scope and application of these regulations, providing detailed procedures and technical specifications to ensure adherence to safety standards.

Key Provisions

The key operative sections of the Civil Aviation Regulations 1998, specifically the AD/HILLER 12/6 for Hiller UH-12 Series Helicopters, mandate certain safety measures to be implemented on these aircraft. Section 39.105 of the regulations sets out the schedule of airworthiness directives, which in this case, applies to the Hiller UH-12 series helicopters. These directives aim to ensure that the helicopters meet the required safety standards to operate in Australian airspace. The directive specifies certain actions that must be taken, including inspections, repairs, and modifications to maintain the airworthiness of these helicopters. The obligations and requirements imposed by the AD/HILLER 12/6 are quite specific and detail-oriented. For example, the directive mandates periodic inspections to check for any structural or mechanical issues that could compromise safety. It also requires the replacement or repair of any parts that do not meet the specified safety standards. Operators of these helicopters must comply with these requirements by ensuring that all necessary inspections and maintenance actions are completed within the specified timeframes. Additionally, operators must keep detailed records of all actions taken in compliance with the directive, which may be subject to audit by the Civil Aviation Safety Authority. Breaches of the AD/HILLER 12/6 can lead to significant consequences. Under the Civil Aviation Act 1988, non-compliance with airworthiness directives can result in penalties for both individuals and corporations. For individuals, the penalty can be a fine of up to $16,500. For corporations, the penalty can be much higher, reaching up to $82,500. Beyond financial penalties, non-compliance can also lead to the grounding of the affected helicopters, which can severely impact the operations of the helicopter operator. Moreover, serious breaches could potentially lead to criminal charges, which might result in imprisonment. These stringent measures underscore the importance of adhering to the safety directives outlined in the regulations.

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Aviation Law
Instrument
Legislative Instrument
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Definitions & Interpretation
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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.