AD/AC/45 - Nose Wheel Tyre - Inspection and Replacement

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Legislation au F2006B02104 Not in force Legislative Instrument

Legislation content

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 


Twin Commander (Gulfstream/Rockwell/ Aerocommander 500, 600 and 700) Series Aeroplanes

 

AD/AC/45 Nose Wheel Tyre - Inspection and Replacement 5/71

Applicability: All models except models 520 and 680T and V equipped with 16 x 4.4 nose wheel tyre (200 mph).

 

Document: Aero Commander SB No. 103A.

 

Compliance: Within 50 hours time in service after 13 May 1971.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, form a comprehensive framework to regulate civil aviation activities within the country. One particular aspect of these regulations is addressed in Part 39 - 105, which focuses on the Civil Aviation Safety Authority’s schedule of airworthiness directives. This schedule outlines specific safety requirements and directives for various aircraft types, ensuring that they meet safety standards. One such directive, AD/AC/45, pertains to the inspection and replacement of nose wheel tyres for Twin Commander (Gulfstream/Rockwell/Aerocommander 500, 600, and 700) series aeroplanes, specifically excluding models 520 and 680T and V equipped with 16 x 4.4 nose wheel tyres (200 mph). The directive mandates compliance within 50 hours’ time in service after 13 May 1971, as referenced in Aero Commander Service Bulletin No. 103A. The policy objective of this directive is to maintain the airworthiness of the specified aircraft by ensuring the structural integrity and safety of the nose wheel tyres.

Scope and Application

The Civil Aviation Regulations 1998, specifically under Part 39 - 105, pertain to the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives, which include stringent regulations for various aircraft types. One such directive, AD/AC/45, mandates the inspection and replacement of nose wheel tyres for Twin Commander (Gulfstream/Rockwell/Aerocommander 500, 600 and 700) series aeroplanes. This directive applies to all models except the 520 and 680T and V models equipped with 16 x 4.4 nose wheel tyres, which are limited to a speed of 200 mph. Compliance with this directive is required within 50 hours of time in service after 13 May 1971. The regulations underscore CASA's commitment to ensuring aviation safety through precise operational standards, and any non-compliance could result in enforcement actions. The directive’s scope is comprehensive, covering the specified aircraft models to mitigate risks associated with tyre integrity and aircraft performance.

Key Provisions

The Civil Aviation Regulations 1998, specifically within Part 39 - 105, outlines the requirements for maintaining the airworthiness of Twin Commander (Gulfstream/Rockwell/Aerocommander 500, 600 and 700) series aeroplanes, with a notable focus on the nose wheel tyre in section (5/71). This legislative instrument mandates that all applicable models, excluding the 520 and 680T and V equipped with a 16 x 4.4 nose wheel tyre, must adhere to stringent inspection and replacement procedures to ensure safety. Compliance with these directives is expected within 50 hours of time in service following the directive's issuance date of 13 May 1971, as documented in Aero Commander Service Bulletin No. 103A. In accordance with the provisions set forth, the Civil Aviation Safety Authority (CASA) imposes several obligations on the operators and maintainers of the specified aircraft. Operators must conduct a thorough inspection of the nose wheel tyre, ensuring it meets the criteria outlined in the referenced document. Furthermore, if the tyre does not comply with the safety standards, it must be replaced as specified. These obligations are integral to maintaining the overall airworthiness of the aircraft, thus ensuring the safety of passengers and crew. Failure to comply with these airworthiness directives may result in significant consequences. The Civil Aviation Regulations 1998 establish that non-compliance can lead to enforcement actions by CASA. In cases of breach, operators and maintainers may face civil penalties, including fines and potential legal action. Additionally, continuous non-compliance could result in the suspension or revocation of the aircraft's certificate of airworthiness, which would render the aircraft unfit for operation until the required compliance is achieved. The penalties underscore the importance of adhering to the stipulated requirements to ensure the safety and legality of aviation operations.

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Aviation Law
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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.