AD/BEECH 50/21 - Flap Bracket

Overview

The Civil Aviation Regulations 1998, as amended, address a critical safety concern within the aviation industry by ensuring the ongoing airworthiness of aircraft, particularly focusing on specific models and components. Enacted by the Australian Parliament, this legislation aims to maintain safety standards and prevent potential hazards through regular inspections and maintenance directives. One such directive, AD/BEECH 50/21, pertains to the Beechcraft 50 (Twin Bonanza) Series Aeroplanes, mandating inspections of the flap actuator bracket and adjacent structure on both the right and left flaps for any cracks or signs of distress. This directive applies to all models of these aircraft that have accumulated 1000 or more hours of service time. The policy objective is to ensure that these inspections are conducted within 100 hours following a specified date and then at intervals not exceeding 300 hours of service time, thereby maintaining the integrity and safety of the aircraft.

Scope and Application

The Civil Aviation Safety Authority (CASA) Regulations, specifically under PART 39 - 105, apply to all Beechcraft 50 (Twin Bonanza) series aeroplanes that have accrued 1000 or more hours of time in service. This directive, identified as AD/BEECH 50/21, mandates inspections of the flap actuator brackets and adjacent structures on both the right-hand and left-hand flaps for any cracks or indications of structural distress. The inspection must be carried out within 100 hours of time in service following 31 August 1972, and subsequently, the inspections must occur at intervals not exceeding 300 hours of time in service. This legislation is applicable on a national level within Australia and enforces critical safety standards to ensure the continued airworthiness of these aircraft. Subordinate instruments may further detail specific inspection procedures and compliance measures, but the primary requirement remains the regular inspection of the specified components to maintain safety standards.

Key Provisions

The main operative sections of the Civil Aviation Regulations 1998, specifically Part 39, require inspections on Beechcraft 50 (Twin Bonanza) Series Aeroplanes. According to section 39-105 (AD/BEECH 50/21), the regulation applies to all models that have accrued 1000 or more hours of time in service. The requirement outlined in section 39-105 is that these aircraft must undergo an inspection of the flap actuator bracket and adjacent structures on both the right-hand (RH) and left-hand (LH) flaps. The purpose of this inspection is to check for any cracks or signs of distress that could compromise the airworthiness of the aircraft. The obligations imposed by this regulation are clear and stringent. Aircraft operators must ensure that the specified inspections are carried out within 100 hours of time in service after the effective date of the regulation, which is 31 August 1972, and subsequently at intervals not exceeding 300 hours of time in service. This means that compliance with these inspections is mandatory and must be meticulously documented to ensure that the aircraft remains airworthy. Failure to comply with these inspection requirements could result in the aircraft being deemed non-compliant with airworthiness standards, potentially leading to grounding or other enforcement actions by the Civil Aviation Safety Authority (CASA). In terms of consequences, breaches of these airworthiness directives can lead to severe civil and criminal penalties. Under section 39-105, any non-compliance with the mandated inspections can result in enforcement actions, including fines and potential prosecution. The specific penalties for non-compliance are not detailed in the regulation but are generally substantial, reflecting the critical nature of maintaining airworthiness standards in civil aviation. The potential penalties underscore the importance of adhering to the regulation to ensure the safety and compliance of the aircraft within the Australian aviation framework.