COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Propellers - Variable Pitch - McCauley
AD/PMC/29 Propeller Hub - Replacement 11/75
Applicability: All propellers model B2D34C53-N/74E ( ) with S/Nos. 705516 to 705560 which are installed on any aircraft fitted with Lycoming 0-360 or IO-360 series engines.
Document: McCauley SB No. 115.
Compliance: Before exceeding 1000 hours time in service. For hubs that have completed 975 hours or more total time in service as at 11 November 1975 - within 25 hours time in service after 11 November 1975.
Overview
The Civil Aviation Regulations 1998, as amended and part of the broader Civil Aviation Act 1988, were enacted to ensure the safety and efficiency of civil aviation within Australia. These regulations establish a comprehensive framework that governs various aspects of aviation operations, including airworthiness, licensing, and safety standards. Specifically, the regulation addresses gaps in safety compliance and operational oversight within the aviation sector, ensuring that all aircraft, pilots, and aviation personnel meet stringent safety and operational standards. The Civil Aviation Regulations 1998 are administered by the Civil Aviation Safety Authority (CASA), which aims to protect the public by ensuring that civil aviation activities are conducted safely and efficiently. The overarching policy objective of these regulations is to maintain and enhance the safety of civil aviation within Australia, thereby protecting passengers, crew, and the general public from aviation-related risks.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 107, pertains to Airworthiness Directives issued by the Civil Aviation Safety Authority (CASA). This particular directive, AD/PMC/29, addresses the replacement of propeller hubs for McCauley variable pitch propellers, model B2D34C53-N/74E, with serial numbers ranging from 705516 to 705560. The directive applies to any aircraft equipped with Lycoming 0-360 or IO-360 series engines, ensuring these propellers meet specified safety standards to maintain airworthiness. Compliance is mandatory for propellers exceeding 1000 hours of service time, with a specific requirement for those that had accumulated 975 hours or more by 11 November 1975 to comply within 25 hours of service following this date. This regulation extends to all aircraft within the Commonwealth of Australia, thereby encompassing both domestic and international operations within its jurisdiction. The directive itself does not explicitly state any exclusions or exemptions, but it does reference McCauley Service Bulletin No. 115 for further details on the compliance procedures. The scope of this directive can potentially be extended or refined through subordinate instruments issued by CASA.
Key Provisions
The Civil Aviation Regulations 1998, specifically under PART 39 - 107, mandate that certain propellers must comply with the Airworthiness Directives issued by the Civil Aviation Safety Authority (CASA). For instance, AD/PMC/29 pertains to the replacement of propeller hubs for a specific model, B2D34C53-N/74E, with serial numbers ranging from 705516 to 705560, installed on aircraft equipped with Lycoming 0-360 or IO-360 series engines (subsection 11/75). The directive references McCauley SB No. 115 as the document outlining the compliance requirements.
The primary obligations under this directive include ensuring that the propeller hubs are replaced before the propellers reach 1000 hours of time in service. For propeller hubs that have already accumulated 975 hours or more of service time as of 11 November 1975, the replacement must occur within 25 hours of service after that date. This requirement is crucial for maintaining the airworthiness and safety standards set by CASA.
Failure to comply with the specified time limits for hub replacement can lead to significant consequences. The regulations do not explicitly state penalties within the provided text, but non-compliance with CASA directives typically results in enforcement actions, which can include fines, grounding of the aircraft, or other regulatory penalties. These actions are intended to ensure that all safety directives are strictly adhered to, thereby preventing potential safety hazards.
Understanding and adhering to these provisions is essential for all stakeholders, including aircraft operators, maintenance personnel, and regulatory bodies. Ensuring compliance not only maintains the safety and airworthiness of the aircraft but also upholds the standards set forth by CASA. By following the directive diligently, parties involved can avoid the legal and operational repercussions of non-compliance.