AD/BEECH 56/29 - Elevator Control Fittings

Overview

The Civil Aviation Regulations 1998, enacted by the Australian Government, aim to ensure the safety and efficiency of civil aviation within Australia. Specifically, Part 39 - 105 of these regulations, which includes the Civil Aviation Safety Authority Schedule of Airworthiness Directives, governs the airworthiness of aircraft by issuing directives to address identified safety concerns. One such directive, AD/BEECH 56/29, was introduced to address the problem of potential cracking and failure of magnesium elevator control fittings in Beechcraft 56TC (Turbo Baron) Series Aeroplanes. This directive was developed in response to reports from the Federal Aviation Administration (FAA) regarding similar issues, aiming to prevent in-flight failures that could lead to catastrophic outcomes. The policy objective is to mandate inspections and replacements of these fittings to maintain the airworthiness of the affected aircraft models.

Scope and Application

The Civil Aviation Regulations 1998, under Part 39 - 105, specifically address the airworthiness of Beechcraft 56TC (Turbo Baron) Series Aeroplanes through the Schedule of Airworthiness Directives. This regulation is pertinent to models 56TC with serial numbers ranging from TG-2 to TG-83, focusing on the composition and inspection of elevator control fittings. The directive mandates a determination of whether these fittings are made of aluminium or magnesium and stipulates actions based on the findings. If the fittings are aluminium, no further action is required, whereas if they are magnesium, a visual inspection must be conducted in accordance with Beechcraft Mandatory Service Bulletin 2242 Revision 1, with cracked fittings needing replacement with aluminium fittings before further flight. Compliance with this directive must occur prior to exceeding 100 hours’ time in service after 30 November 1989, or at the next scheduled inspection for the issue of a Maintenance Release after that date, and subsequently at intervals not exceeding 100 hours’ time in service until the installation of aluminium fittings is completed. The directive extends its application nationally and is supported by the Federal Aviation Administration's AD 89-05-02.

Key Provisions

The Civil Aviation Regulations 1998, specifically under Part 39 - 105 and the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, detail requirements for the maintenance of Beechcraft 56TC (Turbo Baron) Series Aeroplanes. In particular, AD/BEECH 56/29 pertains to elevator control fittings. The directive applies to models 56TC with serial numbers ranging from TG-2 to TG-83. According to Section 1, operators must determine the composition of the elevator control fittings to ascertain whether they are made of aluminium or magnesium. If the fittings are aluminium, no further action is required under this directive. However, if they are magnesium, a visual inspection must be conducted in accordance with Beechcraft Mandatory Service Bulletin 2242 Revision 1. Any cracked magnesium fittings must be replaced with aluminium fittings before the aircraft can be flown again. The obligations imposed by this directive are clear and require operators to take specific actions. Firstly, operators must ensure that the composition of the elevator control fittings is determined. If the fittings are found to be magnesium, they must then be visually inspected for any cracks. If any cracks are found, the defective magnesium fittings must be replaced with aluminium ones before the aircraft is flown further. This inspection and potential replacement must occur before the aircraft accumulates 100 hours of service time after 30 November 1989, or at the next scheduled inspection for the issue of a Maintenance Release, whichever is later. Furthermore, these inspections and any necessary replacements must be carried out at intervals not exceeding 100 hours of service time until the aluminium fittings are installed. Failure to comply with the provisions of AD/BEECH 56/29 can lead to serious consequences. The Federal Aviation Administration (FAA) has reported instances of cracking and failure of magnesium elevator control fittings, which could potentially result in the loss of the aircraft in-flight. While the Civil Aviation Regulations 1998 do not explicitly state the penalties for non-compliance with this specific directive, breaches of airworthiness directives generally can result in severe penalties. These may include fines, the grounding of the aircraft, and in serious cases, criminal charges against responsible individuals or entities. The exact penalties may vary depending on the specific circumstances and the discretion of the court.