AD/AL 250/12 Amdt 2 - Pc Filter Flanged Insert - Inspection

Overview

The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority (CASA), are designed to ensure the safety of civil aviation in Australia. One specific aspect of this legislation is the regulation of airworthiness directives, which are legally enforceable rules that address safety issues related to aircraft and aviation products. One such directive pertains to Allison Turbine Engines, specifically the 250 Series, under the document AD/AL 250/12 Amendment 2. This directive was enacted to address issues related to the Pc Filter Flanged Insert, necessitating inspections to ensure ongoing airworthiness and compliance with safety standards. The objective of this directive is to mandate inspections of the specified turbine engine inserts within 25 hours of service after 12 January 1971 and at regular intervals thereafter, until the insert is properly installed with EPOXYLITE 814. The directive applies to all "Blue Ribbon" Allison 250-C18 series engines, ensuring that these critical components meet stringent safety requirements to prevent potential hazards in civil aviation.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 106, pertains to the maintenance and airworthiness directives for aviation components and systems. The regulation in question, AD/AL 250/12 Amendment 2, concerns the Allison Turbine Engines - 250 Series, focusing on the inspection of the Pc Filter Flanged Insert. This directive applies to all “Blue Ribbon” Allison 250-C18 series engines, as detailed in Allison 250 CEB-112, Revision 1. The compliance requirement mandates that inspections must be carried out within 25 hours of time in service following 12 January 1971 and subsequently at intervals not exceeding 25 hours of time in service until the insert is installed with EPOXYLITE 814. This regulation operates under the authority of the Civil Aviation Safety Authority, ensuring that all applicable aircraft engines meet the specified safety and airworthiness standards.

Key Provisions

The key sections of the AD/AL 250/12 Amendment 2 pertaining to the Allison Turbine Engines - 250 Series, specifically the "Blue Ribbon" Allison 250-C18 series, require a detailed inspection of the Pc Filter Flanged Insert (section 1/71). This inspection is mandated to ensure compliance with the standards outlined in the Allison 250 CEB-112, Revision 1. The regulation stipulates that this inspection must occur within 25 hours of time in service after 12 January 1971 and must be repeated at intervals not exceeding 25 hours’ time in service until the insert is installed using EPOXYLITE 814. The obligations imposed by these regulations are clear and specific. All operators of the affected Allison 250-C18 series engines must conduct the required inspections in accordance with the prescribed intervals. The regulation ensures that the inspections are carried out meticulously to maintain the airworthiness of the engines. Failure to comply with these inspection intervals could result in non-compliance with airworthiness directives, potentially leading to safety issues and operational disruptions. Breach of these regulations can have serious consequences. The AD/AL 250/12 Amendment 2 is a mandatory directive, and failure to adhere to the specified inspection intervals and compliance standards can result in penalties. While the specific penalties are not detailed in the provided excerpt, non-compliance with Civil Aviation Regulations generally can lead to enforcement actions by the Civil Aviation Safety Authority (CASA). These actions can include fines, operational restrictions, or even the grounding of the aircraft until compliance is achieved. The severity of the penalties reflects the importance of adhering to these airworthiness directives to ensure the safety and reliability of the aviation operations.