AD/T53/9 - Second Stage Gas Producer Cylinder Bolts - Replacement

Overview

The Civil Aviation Regulations 1998, enacted by the Commonwealth of Australia, aim to ensure the safe operation of civil aircraft within the country's airspace. This legislation, overseen by the Civil Aviation Safety Authority (CASA), addresses the need for stringent regulatory standards to protect public safety and maintain the integrity of the civil aviation system. Specifically, Part 39 - 106 of these regulations deals with Airworthiness Directives, which are legally enforceable rules related to the design, production, maintenance, and operation of aircraft to ensure they meet safety standards. The policy objective is to mitigate risks and enhance the overall safety of civil aviation through the implementation of mandatory safety directives. The specific legislative instrument, F2006B07257, pertains to the AlliedSignal (Lycoming) Turbine Engines - T53 Series, focusing on the replacement of Second Stage Gas Producer Cylinder Bolts. This directive applies to all T53-13 Series and T53-L-13 Series engines, excluding those exempted in Lycoming Service Bulletin No. 0028 Rev. No. 2. Compliance with this directive is to be achieved as per the instructions detailed in Lycoming Service Bulletin No. 0028, Rev. No. 2, with an effective date from 28 February 1975. This ensures that the specified components of the turbine engines meet necessary safety criteria, thereby reducing the risk of in-flight failures and enhancing the reliability of the aircraft.

Scope and Application

The Civil Aviation Regulations 1998, as specified in PART 39 - 106 of the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives, apply to all T53-13 Series and T53-L-13 Series turbine engines produced by AlliedSignal (Lycoming), except those specifically exempted in Lycoming Service Bulletin No. 0028, Revision 2. This regulation mandates compliance with the directives set forth in either Lycoming Service Bulletin No. 0028, Revision 2, or FAA AD 75-12-12, or AD/LYC-T/10B. These directives were established to ensure the safe operation of the aircraft engines by replacing the Second Stage Gas Producer Cylinder Bolts, with the compliance date set as 28 February 1975. The scope of this legislation is specifically focused on the maintenance and operational standards of these turbine engines to uphold safety in civil aviation, thus affecting all entities operating these specific engine models within the Commonwealth of Australia.

Key Provisions

The Civil Aviation Regulations 1998, particularly Part 39 – 106, contain specific provisions for the safety of aircraft engines. For instance, AlliedSignal (Lycoming) Turbine Engines - T53 Series AD/T53/9 (Section 1) mandates the replacement of Second Stage Gas Producer Cylinder Bolts. This directive applies to all T5313 Series and T53-L-13 Series engines, except those exempted in Lycoming Service Bulletin No. 0028 Rev. No. 2. The requirement is to ensure these components meet the specified safety standards as per the relevant documents: Lycoming SB No. 0028, Rev. 2; FAA AD 75-12-12; or AD/LYC-T/10B. Compliance with these directives is essential to maintain the airworthiness of the aircraft, and the effective date of compliance is 28 February 1975. The obligations imposed by these regulations are clear and stringent. Operators of T5313 Series and T53-L-13 Series engines must ensure that the Second Stage Gas Producer Cylinder Bolts are replaced in accordance with the referenced documents. This includes adhering to the instructions and procedures outlined in Lycoming Service Bulletin No. 0028, Rev. 2, which provides detailed guidance on the replacement process. The Civil Aviation Safety Authority (CASA) mandates that these directives be strictly followed to ensure the safety and reliability of the aircraft engines. Non-compliance can result in significant safety risks and potential legal repercussions. Failure to comply with the airworthiness directives set forth in the Civil Aviation Regulations 1998 can lead to serious consequences. The legislation stipulates that any breach of these requirements can result in both civil and criminal penalties. Under the Civil Aviation Act 1988, non-compliance may lead to fines and sanctions imposed by CASA. Furthermore, in severe cases, individuals or entities responsible for the non-compliance may face criminal charges. The maximum penalties can include substantial fines and imprisonment, reflecting the seriousness of ensuring airworthiness and safety in civil aviation. Therefore, adherence to these directives is not only a legal obligation but also a critical safety measure.