AD/AL 60/4 Amdt 1 - Engine - Exhaust Manifold Failures - Inspection

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, serve to regulate the safety and efficiency of civil aviation within the country. One of the significant aspects of these regulations is Part 39, which includes specific directives to maintain airworthiness of various aircraft models. One such directive, AD/AL 60/4 Amendment 1, was introduced to address the issue of exhaust manifold failures in Aermacchi - Lockheed AL 60 Series aeroplanes equipped with Continental TSIO-470-B engines. This directive mandates inspections at intervals not exceeding 100 hours’ time in service after 1 September 1971, aiming to mitigate the risk of catastrophic engine failure and ensure the continued safety of air operations involving these aircraft models. The policy objective underpinning this directive is to enhance safety standards in civil aviation by proactively identifying and addressing potential mechanical failures.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, pertains to airworthiness directives issued by the Civil Aviation Safety Authority (CASA) in Australia. One such directive, AD/AL 60/4 Amendment 1, targets Aermacchi Lockheed AL 60 Series aeroplanes equipped with a Continental TSIO-470-B engine, mandating inspections for potential exhaust manifold failures. This directive applies to all models of the specified aircraft type, necessitating compliance with the stipulated intervals not exceeding 100 hours of time in service after 1 September 1971. The directive's geographic reach aligns with the national scope of Australia’s aviation regulations, ensuring that all operators within the country adhere to the prescribed safety measures. The regulation does not specify exclusions, exemptions, or thresholds beyond the outlined applicability, thereby establishing a clear and direct requirement for aircraft maintenance and safety compliance.

Key Provisions

The key provisions of the AD/AL 60/4 Amendment 1, as stipulated in Part 39 of the Civil Aviation Regulations 1998, focus on the inspection requirements for the exhaust manifold of Aermacchi Lockheed AL 60 Series Aeroplanes equipped with a Continental TSIO-470-B engine (section 39-105). The purpose of this Airworthiness Directive is to address potential failures in the engine's exhaust manifold, which could compromise the safety of the aircraft. The directive mandates that inspections must be carried out at intervals not exceeding 100 hours of time in service after 1 September 1971. Compliance is to be documented using Aermacchi Lockheed 60 Service Bulletin No. 1. The obligations imposed on the parties governed by this Act include ensuring that the required inspections are performed on the specified engine models within the prescribed intervals. Operators of these aircraft must maintain records of compliance, as specified in the relevant service bulletin. This requirement ensures that the aircraft remains airworthy and adheres to the safety standards set forth by the Civil Aviation Safety Authority. Furthermore, the directive underscores the necessity of diligent record-keeping to demonstrate compliance with the stipulated inspection schedules. In terms of consequences, failure to comply with the AD/AL 60/4 Amendment 1 may result in significant civil or criminal penalties. Although the specific penalties are not detailed within the text provided, non-compliance with Civil Aviation Regulations can typically lead to enforcement actions by the Civil Aviation Safety Authority. Such actions may include fines, suspension of airworthiness certificates, or other regulatory sanctions. It is imperative for operators to adhere to these directives to avoid any potential legal repercussions and to maintain the safety standards required for the operation of these aircraft.