AD/HILLER 12/17 Amdt 4 - Control Rotor Blade Assemblies

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

Legislation au F2006B10346 In force Legislative Instrument

Legislation content

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 12/17

Amdt 4

Applicability: All models.


Control Rotor Blade Assemblies 3/87

 

Requirement: Action in accordance with Fairchild Hiller SB No 36-1 Rev 3. Compliance:  At each scheduled inspection for Maintenance Release issue.

Background:  Amendment 4 to this Directive aligns the repetitive inspections with that for issue of Maintenance Release.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of the Commonwealth of Australia, address the need to ensure the safety of civil aviation operations. Within this comprehensive legislative framework, Part 39 - 105 specifically pertains to the Civil Aviation Safety Authority's schedule of airworthiness directives. These directives ensure that aircraft, including the Hiller UH-12 Series Helicopters, comply with necessary safety standards and requirements. Amendment 4 to Airworthiness Directive AD/HILLER 12/17 pertains to the control rotor blade assemblies of all Hiller UH-12 Series Helicopters, requiring compliance with Fairchild Hiller Service Bulletin No 36-1 Revision 3 during scheduled inspections for the issue of Maintenance Release. The policy objective is to maintain and enhance the safety of civil aviation by ensuring that repetitive inspections align with maintenance release protocols. This legislative instrument aims to address potential safety issues by mandating that compliance checks for control rotor blade assemblies are performed at each scheduled inspection to ensure maintenance release. The alignment with Fairchild Hiller Service Bulletin No 36-1 Revision 3 ensures that the safety directives are current and effective. This amendment is an integral part of the broader regulatory efforts to uphold the safety and reliability of air travel within Australia.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, apply to all models of Hiller UH-12 Series Helicopters. The regulations are overseen by the Civil Aviation Safety Authority (CASA) and govern the maintenance and safety standards that must be met for these helicopters to operate within Australia. The applicability of these regulations extends to all entities involved in the operation and maintenance of these aircraft, ensuring that both individual operators and companies adhere to the stipulated safety directives. These regulations have a national jurisdictional reach, ensuring that compliance is uniformly enforced across the Commonwealth. There are no stated exclusions or exemptions within the scope of this specific Airworthiness Directive, meaning that all compliant aircraft must meet the regulatory requirements regardless of their location or the specific nature of their operations. The regulations can be further refined or extended through subordinate instruments issued by CASA, which may provide additional clarity or specific implementation details necessary for compliance.

Key Provisions

The Civil Aviation Regulations 1998, Part 39 - 105, under the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives for Hiller UH-12 Series Helicopters, specifically AD/HILLER 12/17 Amendment 4, applies to all models within this series. The main requirement stipulated in this legislation is that the control rotor blade assemblies must comply with Fairchild Hiller Service Bulletin No 36-1 Revision 3 (section 3/87). This compliance must be achieved at each scheduled inspection for the issue of a Maintenance Release. This directive ensures that the repetitive inspections align with the procedures required for issuing a Maintenance Release, thereby maintaining the airworthiness of the helicopters. Entities and individuals subject to these regulations must ensure that the control rotor blade assemblies are inspected and maintained in accordance with the specified service bulletin. This includes adhering to the detailed maintenance procedures outlined in Fairchild Hiller SB No 36-1 Rev 3. The requirement for compliance at each scheduled inspection highlights the importance of meticulous and regular maintenance checks to uphold safety standards. Failure to comply with these directives can lead to serious safety concerns and potential grounding of the aircraft. Breaching these regulations can result in significant consequences. While specific penalties are not detailed in the text, non-compliance with CASA directives generally attracts severe penalties under the Civil Aviation Act 1988. These penalties can include fines and potential criminal charges, particularly if the non-compliance leads to an accident or endangers public safety. The maximum penalties for aviation-related offences can be substantial, reflecting the critical nature of adhering to airworthiness directives. Therefore, it is imperative for all parties involved in the maintenance and operation of Hiller UH-12 Series Helicopters to strictly follow the outlined procedures to avoid legal repercussions and ensure safety.

Legal classification tags

Area of Law
Aviation Law
Instrument
Legislative Instrument
Concepts
Definitions & Interpretation
Compliance Obligations
Enforcement Powers
Catchwords
Maintenance Release

Interactions

Authorises

All Versions

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.