COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters
AD/HU 369/74 Particle Separator Filter Bypass Door Latch 3/88
Applicability: All model 369 series helicopters.
Requirement: Action in accordance with McDonnell Douglas SIN No. HN-213, DN-152, EN-41, FN-30, as applicable.
Compliance: Accomplish at the next annual inspection after 30 April 1988 or the next time the particle separator filter bypass door is removed; whichever occurs first.
Background: The manufacturer has received reports of the latches on the engine inlets filter bypass door fracturing and allowing the latch portion of the assembly to fall into the plenum chamber which in turn could result in damage to the engine.
Overview
The Civil Aviation Regulations 1998, under the authority of the Civil Aviation Safety Authority (CASA), was enacted to ensure the safety and efficiency of civil aviation within Australia. The regulations encompass a comprehensive framework that governs various aspects of civil aviation operations, including airworthiness directives that mandate specific actions to be taken to ensure aircraft safety. Part 39, Section 105 of these regulations, outlines Airworthiness Directives for specific aircraft models, such as the McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters, addressing particular safety concerns. This particular directive, AD/HU 369/74, targets the issue of particle separator filter bypass door latches fracturing and falling into the engine plenum chamber, which could potentially cause engine damage. The directive requires actions in accordance with specified McDonnell Douglas service instructions, mandating compliance at the next annual inspection or when the filter bypass door is removed, whichever comes first.
The overarching policy objective of these regulations is to maintain the highest possible safety standards in civil aviation by requiring the implementation of specific maintenance and operational practices. By issuing such directives, CASA aims to proactively address known safety issues and mitigate risks associated with aircraft operations. This legislative instrument is a critical component in ensuring that all stakeholders in the aviation industry adhere to stringent safety protocols, thereby safeguarding the well-being of passengers, crew, and the general public.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to all model 369 series helicopters, ensuring that these aircraft meet certain safety standards as outlined by the Civil Aviation Safety Authority. This legislation mandates that all such helicopters must adhere to specific action requirements as detailed in McDonnell Douglas Service Instructions Numbers HN-213, DN-152, EN-41, and FN-30, as applicable. The directive is intended to mitigate the risk of engine damage caused by the fracturing of the particle separator filter bypass door latch, which could lead to significant operational hazards. The regulation is mandatory and must be complied with at the next annual inspection following 30 April 1988, or at the next removal of the particle separator filter bypass door, whichever comes first. There are no stated exclusions or exemptions in this directive, and it applies nationally within the Commonwealth of Australia, reinforcing the overarching safety standards for civil aviation operations.
Key Provisions
The Civil Aviation Regulations 1998, specifically Part 39 - 105 under the Civil Aviation Safety Authority Schedule of Airworthiness Directives, address the maintenance and safety requirements for McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters. The directive, AD/HU 369/74, pertains to the particle separator filter bypass door latch, which is a critical component in preventing debris from entering the engine (section 39 - 105). The requirement outlined in this directive mandates that operators take action in accordance with McDonnell Douglas Service Instructions Numbers HN-213, DN-152, EN-41, and FN-30, as applicable. This action must be completed at the next annual inspection after 30 April 1988, or the next time the particle separator filter bypass door is removed, whichever comes first.
The directive imposes specific obligations on the operators and owners of the affected helicopters. They must ensure that the particle separator filter bypass door latch is inspected and, if necessary, repaired or replaced to prevent the risk of the latch fracturing and falling into the plenum chamber. This could potentially cause damage to the engine. The compliance must be achieved during scheduled maintenance or inspections to avoid any operational risks.
Breaching the requirements set out in this directive could lead to serious safety implications, including potential engine damage or failure. While the regulations do not explicitly state penalties for non-compliance, failure to adhere to airworthiness directives can result in enforcement actions by the Civil Aviation Safety Authority (CASA). Such actions may include grounding the aircraft, fines, or other regulatory measures. Operators must ensure strict compliance to maintain the airworthiness of the aircraft and ensure the safety of all onboard.