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 369/23 Main Rotor Hub Lead Lag Link - Inspection 3/77
Applicability: All 500 model 369H with lead lag links P/Nos. 369A1234, 369A1234-7, 80-369H1234 and lead lag link assembly P/No. 369H1203.
Document: Hughes SIN No. HN-109.
Compliance: Within 100 hours time in service after 31 March 1977 and thereafter at intervals not exceeding 100 hours time in service.
Overview
The Civil Aviation Regulations 1998, enacted by the Australian Government, serve to regulate civil aviation safety across the nation. A key legislative instrument within this framework is the Civil Aviation Safety Authority Schedule of Airworthiness Directives, specifically addressing the McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters. This instrument was introduced to ensure the airworthiness of these helicopters by mandating inspections of the main rotor hub lead lag link. The directive was issued under AD/HU 369/23, targeting all 500 model 369H helicopters equipped with specific lead lag link parts. The policy objective is to enhance safety by requiring inspections within 100 hours of service after 31 March 1977 and at intervals not exceeding 100 hours thereafter, thereby ensuring that these critical components are regularly maintained and checked for integrity.
Scope and Application
The Civil Aviation Regulations 1998, under Part 39, specifically AD/HU 369/23, applies to all McDonnell Douglas (Hughes) and Kawasaki 369 Series helicopters that are identified by specific part numbers for their main rotor hub lead lag links. This includes the 500 model 369H helicopters with lead lag links bearing part numbers 369A1234, 369A1234-7, 80-369H1234, and the lead lag link assembly with part number 369H1203. The directive is mandated by the Civil Aviation Safety Authority and requires compliance within 100 hours of time in service after 31 March 1977, and subsequently at intervals not exceeding 100 hours of time in service. The geographic reach of this legislation is national, applying across the Commonwealth of Australia, and it extends its application to all relevant aircraft operations and maintenance activities within the country's jurisdiction. The regulations do not specify any exclusions or exemptions from this directive, thereby ensuring a uniform application across the aviation industry. The enforcement and interpretation of these regulations may be further detailed or expanded through subordinate instruments issued by the Civil Aviation Safety Authority.
Key Provisions
The Civil Aviation Regulations 1998 (Cth), specifically in Part 39 under Section 105, mandate Airworthiness Directives (AD) to ensure the safety and airworthiness of aircraft. One such directive, AD/HU 369/23, pertains to the inspection of the main rotor hub lead lag link in McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters (AD/HU 369/23). This directive applies to all 500 model 369H helicopters with specific lead lag link part numbers, including 369A1234, 369A1234-7, 80-369H1234 and lead lag link assembly part number 369H1203, as documented in Hughes Service Information Notice (SIN) No. HN-109. Compliance with this directive requires the inspection to be performed within 100 hours of time in service after 31 March 1977, and subsequently at intervals not exceeding 100 hours of time in service.
Entities and parties governed by this Act must adhere to the stringent inspection requirements outlined in AD/HU 369/23. This includes ensuring that the specified lead lag links are inspected and maintained according to the prescribed schedule, thereby mitigating potential safety risks associated with the components. The inspection must be conducted by appropriately qualified personnel who are familiar with the specific maintenance procedures and safety protocols required by the Civil Aviation Regulations. Records of each inspection must be maintained as per the regulatory requirements to demonstrate compliance and ensure traceability of maintenance activities.
Failure to comply with the AD/HU 369/23 could result in significant legal and financial repercussions. The Civil Aviation Safety Authority (CASA) has the authority to enforce penalties for non-compliance, which can include substantial fines. The exact penalties are not specified within the text but typically reflect the seriousness of the safety breach and the potential risk posed to aviation safety. Additionally, operators may face enforcement actions, such as grounding of the affected aircraft until compliance is achieved, which can have severe operational and financial impacts. Ensuring adherence to these directives is therefore crucial to maintaining the highest standards of aviation safety.