AD/BN-2/31 Amdt 1 - Engine Mounting Frames - Inspection

Overview

The Civil Aviation Regulations 1998, enacted by the Australian Parliament, were established to regulate and ensure the safety and efficiency of civil aviation within Australia. One of the specific legislative instruments under this act is F2006B04743, which concerns airworthiness directives, specifically for the Pilatus Britten-Norman BN-2 Series Aeroplanes. This instrument was introduced to address the need for specific safety measures and compliance standards to maintain the airworthiness of these aircraft models. The policy objective behind these regulations is to enhance aviation safety by ensuring that all aircraft are maintained to a standard that minimises the risk of failure or malfunction during operation. The airworthiness directive AD/BN-2/31 Amendment 1, effective from 5 July 1974, pertains to the inspection of engine mounting frames for certain models of the Pilatus Britten-Norman BN-2 Series Aeroplanes. The directive specifies that all models with particular engine mounting frames must undergo an inspection within 10 hours of time in service after 31 May 1974, as detailed in the document Britten Norman SB BN-2/SB.72. This requirement aims to ensure that any potential issues with the engine mounting frames are identified and rectified, thereby maintaining the overall safety and reliability of the aircraft.

Scope and Application

The Civil Aviation Safety Authority Schedule of Airworthiness Directives, specifically the amendment AD/BN-2/31Amdt 1, pertains to the inspection of engine mounting frames on all Pilatus Britten-Norman BN-2 series aeroplanes equipped with specific engine mounting frames parts numbers NB-20-G-1901, NB-20-G-5231, NB-51-H-1021, and NB-20-D-5209. This directive applies to all operators of such aircraft and mandates that the required inspections must be completed within 10 hours of time in service following 31 May 1974. The regulation is applicable nationwide and is governed by the Civil Aviation Regulations 1998, which fall under the purview of the Commonwealth of Australia. No exclusions or exemptions are explicitly stated within the directive itself, but the scope of the regulation may be further defined or expanded through subordinate instruments. The directive is essential for maintaining the airworthiness of the specified aircraft models, ensuring safety standards are consistently upheld throughout the Australian aviation industry.

Key Provisions

The key operative sections of the Civil Aviation Regulations 1998, Part 39 - 105, Schedule of Airworthiness Directives (AD/BN-2/31 Amendment 1), focus on the inspection requirements for specific engine mounting frames on the Pilatus Britten-Norman BN-2 Series Aeroplanes. According to Section 39.105, these directives are applicable to all models equipped with engine mounting frames bearing specific part numbers: NB-20-G-1901, NB-20-G-5231, NB-51-H-1021, and NB-20-D-5209. The directive mandates that an inspection must be conducted unless it has already been performed, within 10 hours of time in service after 31 May 1974. The compliance requirements are detailed in Britten Norman Service Bulletin BN-2/SB.72. The obligations imposed by this legislation require operators and owners of the specified Pilatus Britten-Norman BN-2 Series Aeroplanes to ensure that the specified engine mounting frames are inspected within the stipulated timeframe. This involves adhering to the guidance provided in the referenced service bulletin. The compliance requirement implies that operators must verify the condition of these engine mounting frames to maintain the airworthiness of the aircraft. The directive underscores the importance of timely inspections to prevent potential safety issues related to the engine mounting structures. In terms of the consequences of non-compliance, the Civil Aviation Regulations 1998 outline that failure to adhere to the airworthiness directives can result in significant civil and criminal penalties. While the specific penalties are not detailed in the extract, non-compliance with airworthiness directives can generally lead to enforcement actions by the Civil Aviation Safety Authority (CASA). This may include fines, suspension or revocation of airworthiness certificates, and other regulatory sanctions. Additionally, operators found in breach of these requirements may face legal action, which could result in substantial financial penalties and damage to their reputation within the aviation industry. The regulatory framework is designed to ensure that all aircraft meet stringent safety standards, thereby protecting passengers and crew.