AD/TSA-600/24 - Nose Landing Gear Support Structure - Inspection and Modification

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, serve as a crucial framework for maintaining the safety and efficiency of civil aviation within the country. One specific legislative instrument, F2006B07489, pertains to the issuance of airworthiness directives for certain types of aircraft, addressing identified safety concerns through mandatory inspections and modifications. This particular instrument, AD/TSA-600/24, focuses on Aerostar (Piper/Ted Smith) 600 and 700 series aeroplanes, specifically targeting the nose landing gear support structure. It was introduced to rectify issues related to cracking in the drag brace support structure of these models, as reported by the manufacturer, to ensure continued airworthiness and safety in operation. The policy objective behind this directive is to mitigate risks by requiring timely inspections and necessary modifications, thereby enhancing the overall safety standards of the specified aircraft models.

Scope and Application

The Civil Aviation Safety Authority (CASA) has issued Airworthiness Directive AD/TSA-600/24, which applies specifically to Aerostar (Piper/Ted Smith) 600 and 700 series aeroplanes, namely the 600A, 601B, and 601P models with airframe sequence numbers ranging from 0611 to 0714. This directive mandates an initial inspection of the nose landing gear (N.L.G.) drag brace support structure within 10 hours of time in service after 17 January 1980, followed by inspections as per the Requirement Document until modifications are made. The directive references Piper SB No. SB600-82, Rev. A, to guide the necessary inspections and modifications to address reported cracking in the N.L.G. drag brace support structure, particularly in those Aerostars equipped with the "Wiebel" N.L.G. The directive’s scope is limited to these specified aircraft models and sequence numbers, and it extends to any operator or entity that owns or operates the affected aeroplanes within the Commonwealth of Australia. The regulation aims to ensure the continued airworthiness and safety of these aircraft by enforcing periodic inspections and required modifications.

Key Provisions

The main operative sections of the Civil Aviation Regulations 1998 (Regulations) in this context are the sections pertaining to the Airworthiness Directives (ADs) issued by the Civil Aviation Safety Authority (CASA). Specifically, AD/TSA-600/24 (paragraph 105.021) requires that all Aerostar (Piper/Ted Smith) 600 and 700 Series Aeroplanes, particularly models 600A, 601B, and 601P with airframe sequence numbers 0611 to 0714, undergo an inspection and potentially a modification of the nose landing gear support structure (paragraph 105.023). The inspection must be conducted within 10 hours of time in service after 17 January 1980, and subsequently as outlined in the Requirement Document, Piper SB No. SB600-82, Rev. A, until the modification is completed (paragraph 105.025). The Regulations impose clear obligations on the parties or entities they govern. Operators of the specified Aerostar models must ensure that the nose landing gear support structure is inspected within the stipulated timeframe and comply with the inspection schedule provided in the Requirement Document. Furthermore, if the inspection reveals any issues, the operator is required to undertake the necessary modifications as directed by the manufacturer (Piper SB No. SB600-82, Rev. A). Failure to comply with these requirements can result in significant safety risks and non-compliance with regulatory standards. Under the Regulations, failure to adhere to the Airworthiness Directives can result in serious consequences. Specifically, CASA can take enforcement action against operators who do not comply with the inspection and modification requirements. The penalties for non-compliance can include fines and other civil or criminal penalties, which may vary depending on the severity and frequency of the breach. The exact penalties are not specified in the provided text, but they can be substantial, reflecting the importance of maintaining the airworthiness of aircraft to ensure safety. In summary, the Civil Aviation Regulations 1998 mandate specific inspection and modification procedures for certain Aerostar models to address structural integrity issues. Operators are required to follow these directives to ensure ongoing airworthiness, and failure to comply can result in serious regulatory and legal repercussions.