AD/SC7/19 Amdt 1 - Flight Control Rods

Overview

The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority, were enacted to establish and enforce safety standards for civil aviation in Australia. The regulations aim to ensure the safety of air navigation services and aircraft operations. One specific aspect of these regulations is the Schedule of Airworthiness Directives, which includes AD/SC7/19 Amendment 1 regarding the flight control rods of Short SC7 (Skyvan) series aeroplanes. This amendment was introduced in response to identified issues of pitting corrosion and stress corrosion cracking in the flight control rods, aiming to ensure continued airworthiness by requiring inspections and actions as per the updated Service Bulletin. The requirement mandates compliance within 60 days from the date of the amendment and subsequent inspections at intervals not exceeding 1200 hours of service or 2 calendar years, whichever is sooner. This legislative instrument underscores the ongoing commitment to maintaining stringent safety standards within the Australian civil aviation sector. The Australian Government, through its legislative authority, continuously updates and refines these regulations to address emerging safety concerns and technological advancements in the aviation industry. The Civil Aviation Regulations 1998 are part of a broader framework designed to safeguard public safety, and amendments like AD/SC7/19 Amendment 1 reflect a proactive approach to mitigating risks associated with specific aircraft components. By enforcing these directives, the Civil Aviation Safety Authority aims to uphold the highest standards of safety and reliability in civil aviation operations, ensuring that aircraft meet necessary safety benchmarks before being returned to service.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to all Short SC7 aircraft, imposing mandatory safety directives to address identified issues with flight control rods. The legislation requires aircraft operators to take corrective action in accordance with Shorts Service Bulletin 27-74 Revision 1 to mitigate risks associated with pitting corrosion and stress corrosion cracking in the flight control rods. Compliance must be achieved within 60 days from the effective date of 25 May 1995, with subsequent inspections required at intervals not exceeding 1200 hours of time in service or 2 calendar years, whichever comes first. This legislative instrument extends its jurisdictional reach across the Commonwealth of Australia, ensuring that all operators of the specified aircraft adhere to these stringent safety measures to maintain airworthiness and safety standards.

Key Provisions

The main sections of the Civil Aviation Regulations 1998 that are pertinent to this legislative instrument are Part 39 and specifically section 39.105. Section 39.105 details the Airworthiness Directives (AD) that must be complied with by operators of certain aircraft, including the Short SC7 (Skyvan) Series Aeroplanes, as outlined in the Schedule of Airworthiness Directives. AD/SC7/19 Amendment 1 pertains to the flight control rods and is applicable to all Model SC7 aircraft. It requires compliance with Shorts Service Bulletin 27-74 Revision 1, which was issued to address issues such as pitting corrosion and stress corrosion cracking identified in the flight control rods. The directive mandates that compliance must be achieved within 60 days from 25 May 1995, and subsequent inspections must occur at intervals not exceeding 1200 hours of time in service or 2 calendar years, whichever is the shorter period. Operators of the Short SC7 (Skyvan) Series Aeroplanes are obligated to ensure that all required inspections and actions as specified in Shorts Service Bulletin 27-74 Revision 1 are conducted within the stipulated timeframes. The key obligation is to perform an initial inspection and any subsequent inspections within the specified intervals to maintain airworthiness. This includes following the detailed procedures and requirements outlined in the service bulletin to mitigate the risk of pitting corrosion and stress corrosion cracking in the flight control rods. The operators must also ensure that the aircraft remains airworthy and compliant with all relevant safety standards at all times. Failure to comply with the requirements of this Airworthiness Directive can result in serious consequences. Under the Civil Aviation Act 1988, non-compliance can lead to enforcement actions by the Civil Aviation Safety Authority (CASA). The severity of the penalties can vary depending on the nature and extent of the breach. For significant breaches, CASA may impose fines, suspend or cancel the aircraft's certificate of airworthiness, or take other regulatory actions. In severe cases, operators may also face criminal charges, which could result in substantial fines or imprisonment. It is essential for operators to adhere strictly to the directives to avoid these potential consequences.