AD/HS 125/126 Amdt 1 - Electrical Power/Generator Power

Overview

The Civil Aviation Regulations 1998, specifically under Part 39 - 105, establish the Civil Aviation Safety Authority Schedule of Airworthiness Directives, which includes detailed safety instructions for various aircraft. Enacted by the Australian Government, this legislation aims to ensure the safety and airworthiness of aircraft operating within Australian airspace. The regulation addresses gaps in safety compliance by mandating specific modifications to aircraft, such as those outlined in the Airworthiness Directive for British Aerospace BAe 125 Series Aeroplanes. This directive focuses on the electrical power and generator power systems, aiming to prevent potential hazards such as uncontrolled overvoltages and battery failures. The policy objective is to maintain high safety standards for civil aviation, ensuring the reliability and safety of aircraft in operation.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39, outlines the regulatory framework within which civil aviation activities are conducted in Australia, including the issuance of Airworthiness Directives. The Schedule of Airworthiness Directives pertaining to the British Aerospace BAe 125 Series Aeroplanes is a critical component of this regulatory structure, applying to certain models and configurations of the BAe 125 aircraft. The directive in question, AD/HS 125/126 Amendment 1, mandates electrical power and generator power modifications for specific series and model configurations of the BAe 125 aircraft, including Series F400, F600, 700, and 800, with particular attention to pre- and post-modification versions of these series. Compliance with these directives is mandatory for all aircraft within the specified categories and configurations, necessitating modifications in accordance with Corporate Jets Limited’s Mandatory Service Bulletin No SB-24-289-3267A, B, C, D, E, F & G Revision 1 dated 10 April 1992. The directive aims to mitigate risks associated with potential earth wire damage, which could lead to overvoltage, battery overheat, or failure of sensitive equipment. The amendments reflect updates to the Service Bulletin and require compliance prior to specific dates to ensure the continued airworthiness of the affected aircraft.

Key Provisions

The main operative sections of this Civil Aviation Regulations 1998 amendment, specifically within Part 39 - 105, pertain to the applicability and requirements of the airworthiness directive for British Aerospace BAe 125 Series aeroplanes, identified as AD/HS 125/126 Amendment 1 (section 1). This directive applies to certain series and modifications of the British Aerospace BAe 125 aeroplanes, including the F400, F600, 700, and 800 series, with specific post and pre-modification identifications outlined in the regulation (section 2). The primary requirement is the modification of these aircraft in accordance with Corporate Jets Limited 125 Series Aircraft Mandatory Service Bulletin No SB-24-289-3267A, B, C, D, E, F & G Revision 1 dated 10 April 1992. This modification aims to reduce the risk of damage to the earth wire, which could otherwise lead to uncontrolled overvoltage and subsequent battery overheating or sensitive equipment failure. The obligations imposed by this Act on the parties or entities it governs are primarily focused on compliance with the specified modifications as outlined in the Service Bulletin. Operators of the affected British Aerospace BAe 125 Series aeroplanes must ensure that their aircraft are modified in line with the detailed instructions provided by the Service Bulletin, which has been classified as mandatory by the Civil Aviation Authority (UK). The compliance deadline for the original issue of this Directive was prior to 30 June 1992, and for this amendment, it was prior to 30 April 1994 (section 3). This necessitates timely action by the operators to adhere to the stipulated timelines, ensuring that the safety modifications are implemented without delay. Any breaches of the requirements set forth in this airworthiness directive may result in significant civil or criminal consequences. While the specific penalties are not detailed within the text of the legislation, it is understood that non-compliance with airworthiness directives in Australia can result in severe penalties, including fines and potential imprisonment for individuals, as well as financial penalties for corporations. The Civil Aviation Safety Authority (CASA) has the authority to enforce these regulations, and failure to comply with the mandated modifications could lead to enforcement actions against the non-compliant operators, including the grounding of the aircraft in question until the required modifications are completed. This underscores the importance of adhering to the stipulated compliance deadlines and ensuring that all modifications are carried out as specified.