AD/GY80/4 - Landing Gear Actuating Cylinder Attachment - Modification

Overview

The Civil Aviation Regulations 1998, enacted by the Australian Parliament, provide a comprehensive framework for ensuring the safety and efficiency of civil aviation within the country. One of the legislative instruments under these regulations is F2006B10335, which pertains to Aerospatiale GY 80 (Horizon) Series Aeroplanes. This particular legislative instrument, introduced under the authority of the Civil Aviation Safety Authority, addresses a specific safety concern regarding the landing gear actuating cylinder attachment on these aircraft models. The policy objective of this directive is to ensure the airworthiness of the aircraft by mandating a modification to the landing gear actuating cylinder attachment within a specified timeframe, thereby reducing the risk of mechanical failure and enhancing overall flight safety. The legislative instrument F2006B10335 is part of the broader regulatory measures established to comply with international standards and guidelines, as well as to meet the specific safety requirements outlined by the Civil Aviation Safety Authority. It applies to all models within the Aerospatiale GY 80 series and requires compliance with Sud Aviation Service Bulletin No. 33, ensuring that the modification is completed within 100 hours of time in service after 31 May 1972. This proactive approach underscores the commitment to maintaining high safety standards in Australia's civil aviation sector, thereby protecting both the operators and the passengers.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, pertains to the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives, focusing on Aerospatiale GY 80 (Horizon) Series Aeroplanes. This regulation applies to all models of the Aerospatiale GY 80 Series Aeroplanes, mandating compliance with Airworthiness Directive AD/GY80/4, which concerns the modification of the Landing Gear Actuating Cylinder Attachment. This directive necessitates compliance within 100 hours of time in service following 31 May 1972, as outlined in Sud Aviation Service Bulletin No. 33. The regulation is applicable nationally, under the jurisdiction of CASA, and extends to all operators and entities involved in the maintenance, operation, or manufacture of Aerospatiale GY 80 Series Aeroplanes within Australia. The scope of this directive does not explicitly mention any exclusions, exemptions, or thresholds, implying that all relevant aircraft must adhere to the specified modification within the stipulated timeframe. The application of this directive may be further clarified or expanded through subordinate instruments issued by CASA.

Key Provisions

The primary operative sections of the Civil Aviation Regulations 1998, Part 39 - 105 Civil Aviation Safety Authority Schedule of Airworthiness Directives, specifically AD/GY80/4, pertain to the modification of the landing gear actuating cylinder attachment for Aerospatiale GY 80 (Horizon) Series Aeroplanes. This directive mandates that all models of the Aerospatiale GY 80 must undergo a specific modification to the landing gear actuating cylinder attachment as per Sud Aviation Service Bulletin No. 33. The compliance requirement states that this modification must be completed within 100 hours of time in service after 31 May 1972. The Act imposes several obligations on the parties or entities it governs. Primarily, the operators and owners of Aerospatiale GY 80 (Horizon) Series Aeroplanes must ensure that the landing gear actuating cylinder attachment is modified according to the specified guidelines within the stipulated timeframe. This includes ensuring that the aircraft has not exceeded the prescribed 100 hours of time in service without the modification post the date of 31 May 1972. Failure to comply with this directive could result in the aircraft not meeting the required airworthiness standards, thus posing safety risks. Failure to adhere to the provisions outlined in AD/GY80/4 may lead to various consequences. Civil Aviation Safety Authority (CASA) may take enforcement action against the non-compliant aircraft operators. The potential consequences include fines, the grounding of the non-compliant aircraft, and potential criminal charges against the operators if the non-compliance is found to have endangered public safety. The maximum penalties for such offences could include significant fines and imprisonment, reflecting the seriousness of non-compliance with airworthiness directives. In summary, AD/GY80/4 is a critical directive that mandates the modification of the landing gear actuating cylinder attachment for Aerospatiale GY 80 (Horizon) Series Aeroplanes. Operators and owners must ensure compliance within 100 hours of time in service after 31 May 1972. Non-compliance can result in severe civil and criminal penalties, including fines and imprisonment, highlighting the importance of adhering to the directive to maintain airworthiness and public safety standards.