AD/GAF-N22/20 Amdt 1 - Hot Air Check Valve - Inspection and Modification

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Legislation au F2006B10167 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

 


GAF N22 and N24 Series Aeroplanes

 

AD/GAF-N22/20

Amdt 1


Hot Air Check Valve - Inspection and Modification


8/78

 

Applicability: As detailed in GAF Alert SB AN22.74.1 Revision 1. Document:  GAF Alert SB AN22-74-1 Revision 1.

Compliance: In accordance with the requirement document.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overview

The Civil Aviation Regulations 1998, under Part 39 - 105, includes an amending schedule known as AD/GAF-N22/20 Amendment 1, which addresses the inspection and modification of hot air check valves for GAF N22 and N24 series aeroplanes. This legislative instrument was enacted to address potential safety issues identified in these aircraft models, specifically relating to the hot air check valves as detailed in GAF Alert SB AN22.74.1 Revision 1. The policy objective behind this amendment is to ensure compliance with safety directives to mitigate any risks associated with the identified issue, thereby maintaining the airworthiness of the specified aeroplanes and enhancing overall aviation safety. The Civil Aviation Safety Authority, as the enacting body, has implemented this directive to uphold stringent safety standards within the aviation industry.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, outlines the Civil Aviation Safety Authority's (CASA) schedule of airworthiness directives, which apply to the maintenance and operation of aircraft within Australia's airspace. In this context, the legislation applies to the GAF N22 and N24 series aeroplanes, mandating that operators must adhere to the specific airworthiness directives issued by CASA. These directives are crucial for ensuring the safety and airworthiness of the aircraft, and they encompass the inspection and modification of components such as the hot air check valve as outlined in GAF Alert SB AN22-74-1 Revision 1. The geographic reach of these regulations is nationwide, applying to all civil aviation activities within the Commonwealth of Australia. There are no stated exclusions or exemptions in the document provided, meaning that all operators of the specified aircraft types must comply with the outlined directives. CASA may extend or restrict the application of these directives through subordinate instruments, ensuring that safety standards are consistently upheld across the aviation industry.

Key Provisions

The Civil Aviation Regulations 1998, specifically in Part 39 under section 105, sets forth the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives, detailing specific mandates for aircraft maintenance and safety. In this context, AD/GAF-N22/20 Amendment 1 pertains to the hot air check valve for GAF N22 and N24 Series aeroplanes (Section 39-105). This amendment requires an inspection and modification of the hot air check valve, as outlined in GAF Alert SB AN22-74-1 Revision 1 (Section 39-105). The directive is applicable as specified in GAF Alert SB AN22.74.1 Revision 1, which serves as the compliance document. The obligations imposed by this directive on the relevant parties, including aircraft operators and maintenance providers, are clear and specific. They must ensure that the hot air check valve on the affected aircraft is inspected and modified as per the requirements outlined in GAF Alert SB AN22-74-1 Revision 1 (Section 39-105). This includes adhering to the detailed procedures and standards provided in the referenced document to maintain the airworthiness of the aircraft. Operators and maintainers are required to document all actions taken to comply with the directive, maintaining records that can be audited by CASA. Failure to comply with the requirements of AD/GAF-N22/20 Amendment 1 can lead to serious consequences. Under the Civil Aviation Regulations 1998, non-compliance with an Airworthiness Directive can result in the aircraft being deemed unairworthy, which may prevent it from operating until the necessary modifications are made (Section 39-105). Additionally, operators and maintainers found in breach of these directives may face civil penalties, including fines up to a significant amount as stipulated by the regulations. In severe cases, criminal charges may also be pursued, leading to substantial fines and potential imprisonment for those responsible for the non-compliance.

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Area of Law
Aviation Law
Instrument
Legislative Instrument
Concepts
Definitions & Interpretation
Compliance Obligations
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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.