AD/BEECH 55/19 - Engine Mount Bolt Nuts

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, provide a comprehensive regulatory framework for civil aviation within the country, aiming to ensure the safety and efficiency of the aviation industry. Within this framework, Part 39 - 105 of the Civil Aviation Regulations introduces specific airworthiness directives to maintain high safety standards for aircraft. One such directive is AD/BEECH 55/19 concerning the engine mount bolt nuts for Beechcraft 55, 58, and 95-55 (Baron) Series Aeroplanes. This directive was introduced to address a safety issue identified in certain models of these aircraft, specifically those with particular serial numbers. The directive mandates compliance within 25 hours’ time in service after 21 August 1970, as per Beechcraft Service Information No. 0396-241, ensuring the aircraft meet required safety standards. The policy objective is to enhance airworthiness and mitigate potential risks associated with the specified engine mount bolt nuts.

Scope and Application

The Civil Aviation Regulations 1998, specifically PART 39 - 105, pertains to the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives which applies to the Beechcraft 55, 58 and 95-55 (Baron) Series Aeroplanes. This legislation mandates the action concerning engine mount bolt nuts for certain models and serial numbers of these aircraft. The directive applies to models D55, D55A, E55, E55A with serial numbers starting from TE-589 and models 58 and 58A starting from serial number TH-1. The requirement for compliance is adherence to Beechcraft Service Instruction No. 0396-241, with the action to be taken within 25 hours of time in service after 21 August 1970. The regulation extends to all persons and entities operating these specified aircraft within the jurisdiction of the Commonwealth of Australia, ensuring the safety standards are met without any stated exclusions or exemptions within the text provided.

Key Provisions

The Civil Aviation Regulations 1998, specifically under Part 39 - 105 and the Schedule of Airworthiness Directives, contain provisions that mandate the maintenance and safety of certain aircraft. Section AD/BEECH 55/19 pertains to the Beechcraft 55, 58, and 95-55 (Baron) series aeroplanes, focusing on engine mount bolt nuts (paragraph 8/70). This regulation applies to models D55, D55A, E55, E55A with serial numbers (S/Nos.) TE-589 and subsequent, as well as models 58 and 58A with S/Nos. TH-1 and subsequent. The directive requires that actions be taken in accordance with Beechcraft Service Information (SI) No. 0396-241, which likely details the necessary maintenance or repair procedures for these components. Under these regulations, the entities responsible for ensuring compliance with AD/BEECH 55/19 include aircraft owners, operators, and maintenance providers. They must adhere to the specified requirements, which involve addressing the engine mount bolt nuts within 25 hours of the aircraft being in service following the directive's effective date of 21 August 1970. This timeline is crucial for maintaining the airworthiness and safety standards of the aircraft. Failure to comply with AD/BEECH 55/19 can result in serious consequences. The Civil Aviation Safety Authority (CASA) can impose penalties on non-compliant parties. The exact nature of these penalties is not detailed in the excerpt, but generally, they can include fines, operational restrictions, or even the grounding of the aircraft until the required actions are completed. The severity of the penalties often depends on the extent of non-compliance and the risk posed to aviation safety.