Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of the Commonwealth of Australia, aim to maintain and enhance the safety standards of civil aviation operations within Australia. The specific amendments and directives found in Part 39, including the Airworthiness Directives for the Beechcraft 60 (Duke) Series Aeroplanes, are introduced to address critical safety concerns related to the aircraft's operational components. The policy objective is to ensure that all aircraft meet stringent safety criteria, thereby protecting the lives of passengers and crew as well as ensuring the integrity of the aviation infrastructure. This directive, AD/BEECH 60/14 Amendment 1, mandates specific modifications and inspections to the main undercarriage up-lock system of the Beechcraft 60 series aeroplanes to prevent mechanical failures that could potentially lead to accidents. The directive requires modifications to the landing gear up-lock roller assemblies and mandates a series of inspections and lubrication procedures to maintain the functionality and safety of the up-lock system. These requirements are designed to prevent issues such as overextended springs, stiction, and other mechanical faults that could compromise the aircraft's safety. Compliance with these directives is essential for maintaining the airworthiness of the aircraft and ensuring adherence to the highest safety standards set by the Civil Aviation Safety Authority.

Scope and Application

The Civil Aviation Regulations 1998, specifically under Part 39 - 105, applies to all Beechcraft 60 (Duke) Series Aeroplanes, mandating strict compliance with Airworthiness Directives. These directives, as outlined in AD/BEECH 60/14 Amendment 1, cover the modification and inspection of the main undercarriage up-lock assemblies to ensure safety and proper functioning. The regulations apply nationally within Australia and are enforced by the Civil Aviation Safety Authority (CASA). The directive specifies detailed requirements including the fitting of a lubricating bolt assembly, inspecting the up-lock spring for proper length and deflection, ensuring the up-lock roller rotates smoothly, lubricating the roller bearing with specified grease, and inspecting the up-lock block for alignment and freedom from corrosion. Compliance must be achieved within specific time intervals post-service hours or calendar months, depending on the condition and use of the aircraft. Notably, some inspections and certifications can be performed by the pilot, subject to the regulations' stipulations. The scope of the Act is comprehensive and applies uniformly across all models of the specified aircraft within the national jurisdiction.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, contains the Airworthiness Directives for various aircraft, including the Beechcraft 60 (Duke) Series Aeroplanes, with AD/BEECH 60/14 Amendment 1 providing detailed requirements for the main undercarriage up-lock. Section 1 outlines the modifications and inspections needed for the left and right main landing gear up-lock roller assemblies (section 1(1)). This includes fitting a lubricating bolt assembly as specified in Beechcraft SI No. 0482-211 or an approved alternative (section 1(1)(a)). Additionally, it mandates inspecting the up-lock spring for over extension, ensuring its free length is between 3.70 inches and 3.82 inches and its deflected length with a 20 lb. load is between 6.83 inches and 7.81 inches, discarding any springs that do not meet these criteria (section 1(1)(b)). The directive also requires inspecting the up-lock roller for stiction and roughness, ensuring it rotates under light finger pressure (section 1(1)(c)). Lubrication of the up-lock roller bearing with grease meeting specifications MIL-G-23827, MIL-G-7711A, or equivalent is also necessary (section 1(1)(d)). Lastly, the up-lock block must be inspected for alignment, even contour, and freedom from corrosion and damage (section 1(1)(e)). The Civil Aviation Regulations impose specific obligations and requirements on the operators and maintainers of the Beechcraft 60 (Duke) Series Aeroplanes. For the modifications outlined in section 1(1)(a), operators must complete the required modifications within 100 hours of the aircraft's time in service or within two months after 1 March 1972, whichever comes first (section 1(1)(a)). Inspections of the up-lock spring (section 1(1)(b)) must occur each time the up-lock bracket or spring is removed. The up-lock roller (section 1(1)(c)) and up-lock block (section 1(1)(e)) inspections have more flexible timelines: they must occur at any time the main wheel bay is washed out, before flight from wet, muddy, or dusty terrain, or at intervals not exceeding 50 or 100 hours of time in service, or two or twelve months, respectively (sections 1(1)(c) and 1(1)(e)). Lubrication of the up-lock roller bearing (section 1(1)(d)) must occur at any time the main wheel bay is washed out, whenever stiction and/or roughness is detected in the roller, or at intervals not exceeding 50 hours of time in service or two months (section 1(1)(d)). Non-compliance with the provisions of the Civil Aviation Regulations, particularly those outlined in the Airworthiness Directives, can lead to various legal consequences. Under the Civil Aviation Act 1988, non-compliance with airworthiness directives can result in both civil and criminal penalties. Civil penalties may include fines of up to $16,200 for individuals and $81,000 for corporations, as stipulated in section 56(1) of the Act. Additionally, non-compliance can result in the suspension or revocation of the aircraft's certificate of airworthiness, preventing the aircraft from legally operating (section 49(1) of the Act). Criminal penalties can include fines of up to $243,000 for individuals and $1,215,000 for corporations, as well as imprisonment for up to five years, as outlined in section 56(2) of the Act. These severe penalties underscore the importance of adhering to the regulatory requirements set forth in the Civil Aviation Regulations.