AD/S-76/6 - Hydraulic Pumps - Replacement

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, serve to ensure the safety and efficiency of civil aviation within the country. One of the key components of these regulations is Part 39, which focuses on the Airworthiness Directives, specifically addressing issues related to the maintenance and safety of aircraft. One such directive is AD/S-76/6, which was introduced to address the specific issue of hydraulic pump replacement in Sikorsky S-76 series helicopters. This directive was necessary to mitigate risks associated with the failure of certain hydraulic pumps, as identified by the manufacturer, thereby enhancing the overall safety of the aircraft and its operations. The directive, which applies to all model S-76 helicopters with specific serial numbers, mandates the replacement of certain hydraulic pumps within 100 hours of time in service after 31 January 1980. This policy objective is to ensure that these aircraft meet the required safety standards and to prevent potential failures that could compromise the safety of the flight. The legislation is a crucial part of the Civil Aviation Safety Authority's (CASA) efforts to maintain stringent safety protocols in the aviation industry.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to the Civil Aviation Safety Authority's Schedule of Airworthiness Directives for the Sikorsky S-76 Series Helicopters, including those with specific serial numbers. This legislation mandates that certain Sikorsky S-76 helicopters with serial numbers ranging from 76005 to 760043 must undergo a replacement of their hydraulic pumps to ensure compliance with safety standards. The requirement to comply with this directive must be fulfilled within 100 hours of the helicopter's time in service following 31 January 1980, as per the directive Sikorsky CSB 76-29-1. This directive is applicable nationally and is enforced by the Civil Aviation Safety Authority, ensuring that the specified aircraft maintain their airworthiness and comply with established safety protocols. There are no exclusions or exemptions mentioned in the directive, and compliance is mandatory for the specified models within the stipulated timeframe.

Key Provisions

The Civil Aviation Regulations 1998, particularly in Part 39, mandate specific requirements for airworthiness directives aimed at ensuring the safety of aircraft operations. Section 39-105 of the Civil Aviation Safety Authority (CASA) schedule of airworthiness directives includes the directive AD/S-76/6 concerning Sikorsky S-76 Series Helicopters (section numbers referenced in parentheses). This directive specifically applies to all Sikorsky S-76 models with serial numbers ranging from 76005 to 760043. The directive mandates that the hydraulic pumps must be replaced within 100 hours of time in service following 31 January 1980, as advised by the manufacturer through document Sikorsky CSB 76-29-1. The obligations imposed by this directive are clear and specific. Operators of the affected Sikorsky S-76 Series Helicopters must ensure that the hydraulic pumps are replaced as per the timeline stipulated. This requirement is non-negotiable and must be adhered to in order to maintain the airworthiness of the aircraft. Failure to comply with this directive could lead to significant safety issues, as the hydraulic system is critical for the operation of the helicopter. Breach of the provisions outlined in AD/S-76/6 can result in severe consequences. Under the Civil Aviation Act 1988, non-compliance with airworthiness directives is an offence. Operators found in breach of these requirements may face penalties, including fines and potential grounding of the aircraft. The severity of the penalty can depend on the extent of the breach and the impact on safety. In some cases, persistent or severe non-compliance could lead to more stringent measures, such as suspension or revocation of the operator's licence. Therefore, it is crucial for operators to meticulously follow the directive to avoid these adverse outcomes.