AD/BEECH 200/52 - Engine Mount Assembly Attachment Bolts

Overview

The Civil Aviation Regulations 1998, specifically Part 39 - 105 concerning the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, addresses the safety of Beechcraft 200 (Super King Air) series aeroplanes by issuing AD/BEECH 200/52. This directive was introduced to ensure the integrity of engine mount assembly attachment bolts, particularly those manufactured by Dumont Aviation, which could potentially have been improperly heat-treated. The requirement is to individually inspect and, if necessary, replace any such bolts with a new part number MS20006-20 /M/. Compliance with this directive must be achieved within 150 hours of time in service after 17 September 1992 and prior to further flight. The enactment body responsible for these regulations is the Australian Parliament, with a clear policy objective of maintaining the highest safety standards in civil aviation. This directive, while focusing on a specific model of aircraft and its engine mount bolts, aligns with the overarching goal of the Civil Aviation Regulations 1998 to safeguard air travel by addressing potential safety hazards through detailed and precise regulatory measures. The requirement to replace potentially compromised bolts is a proactive measure designed to prevent in-flight incidents, thereby enhancing overall aviation safety.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105 concerning the Civil Aviation Safety Authority Schedule of Airworthiness Directives, applies to Beechcraft 200 (Super King Air) series aeroplanes with models and serial numbers as listed in Beech SB 2432. This legislation mandates a critical safety measure requiring the individual removal of each engine truss-to-firewall bolt to determine whether it was manufactured by Dumont Aviation. If any such bolts are identified, they must be replaced with a new bolt part number MS20006-20 /M/. This directive applies to the specified aircraft models within the Commonwealth of Australia, overseen by the Civil Aviation Safety Authority (CASA). Compliance is mandatory within 150 hours of time in service after 17 September 1992 and must be completed prior to any further flight, ensuring that potentially improperly heat-treated bolts are not in use. This regulation extends to all aircraft falling under the specified categories and is enforced through the issuance of Airworthiness Directives by CASA.

Key Provisions

The Civil Aviation Regulations 1998, under Part 39 - 105, detail the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives. Specifically, AD/BEECH 200/52 pertains to Beechcraft 200 (Super King Air) Series Aeroplanes and addresses engine mount assembly attachment bolts (section 1). This regulation applies to models and serial numbers as listed in Beech SB 2432. The primary requirement of this directive is to individually inspect each engine truss-to-firewall bolt to determine if it is manufactured by Dumont Aviation, as specified in Figure 2 and paragraphs 1 and 2 of the ACCOMPLISHMENT INSTRUCTIONS section of Beech SB 2432 (section 1). Only one bolt should be removed at a time. If any bolt manufactured by Dumont Aviation is identified, it must be replaced with a new bolt part number MS20006-20 /M/ (section 1.2). Entities and operators of the affected Beechcraft 200 (Super King Air) aeroplanes are obligated to comply with this Airworthiness Directive. They must conduct a thorough inspection of the engine mount assembly attachment bolts within 150 hours of time in service after 17 September 1992, and prior to further flight. This ensures that any bolts that could have been improperly heat treated are identified and replaced, maintaining the safety and airworthiness of the aircraft (section 1.1 and 1.2). Failure to comply with the requirements of this Airworthiness Directive may result in civil or criminal consequences. CASA enforces these regulations stringently to ensure safety and compliance. Although the specific penalties are not detailed in the excerpt, non-compliance with CASA directives can lead to severe repercussions, including fines, suspension of airworthiness certificates, or other regulatory actions deemed necessary to enforce compliance with aviation safety standards.