AD/FU24/2 Amdt 1 - Structural Component - Corrosion - Inspection

Overview

The Civil Aviation Regulations 1998, specifically within Part 39 - 105, address the problem of structural corrosion in aircraft through Airworthiness Directives. The Australian Civil Aviation Safety Authority issued AD/FU24/2 Amendment 1 to mandate inspections of critical structural components on FU 24 Series Aeroplanes manufactured by Airparts (NZ) Ltd. The directive requires inspections of fuselage longerons, centre wing, main and rear spars, wing attachment fittings, and other major structural components for signs of corrosion, with necessary repairs to be effected. This directive was enacted to ensure the continued airworthiness of the aircraft and to mitigate the risks posed by corrosion, which could compromise structural integrity. Compliance with this directive involves regular inspections at intervals not exceeding three years for aircraft engaged in agricultural operations, and not exceeding five years for those engaged in other operations. The Australian Parliament enacted these regulations to uphold safety standards and ensure the integrity of aircraft operating within Australian airspace. The policy objective behind this directive is to maintain the highest safety standards by proactively addressing potential structural failures due to corrosion, thereby protecting both the aircraft and its occupants.

Scope and Application

The Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives, specifically AD/FU24/2 Amendment 1, pertains to all models of FU 24 Series Aeroplanes manufactured by Airparts (NZ) Ltd. This legislation applies to all owners and operators of these aircraft, necessitating a mandatory inspection of the fuselage longerons, centre wing, main and rear spars, wing attachment fittings, and other significant structural components for signs of corrosion. The directive requires that these inspections be carried out with intervals not exceeding 3 years for aircraft engaged in agricultural operations, and intervals not exceeding 5 years for aircraft involved in other operations. This regulatory requirement ensures that these aircraft maintain their airworthiness by identifying and rectifying any structural issues related to corrosion. The directive's scope is national, applying across all states and territories within the Commonwealth of Australia. This directive extends its reach through subordinate instruments which may provide additional detail or amendments to the requirements set forth in the primary legislation.

Key Provisions

The key operative sections of the Civil Aviation Regulations 1998, specifically in Part 39 - 105 under the Civil Aviation Safety Authority Schedule of Airworthiness Directives for Airparts (NZ) Ltd. FU 24 Series Aeroplanes, are detailed in AD/FU24/2 Amendment 1. Section 7/68 requires an inspection of the fuselage longerons, centre wing, main and rear spars, wing attachment fittings, and other major structural components for signs of corrosion (paragraph 1). This inspection is mandatory for all models of the FU 24 Series Aeroplanes. Notably, the inspection must be thorough, often necessitating the dismantling of the aircraft as it lacks sufficient inspection panels to complete the task without disassembly (paragraph 1). The Act imposes specific obligations on the parties involved, particularly the aircraft operators and maintenance personnel. For aircraft engaged in agricultural operations, these inspections must be conducted at intervals not exceeding three years (paragraph 2). For aircraft used in other operations, the interval extends to a maximum of five years (paragraph 2). This requirement ensures that structural integrity is maintained to avoid potential safety hazards associated with corrosion (paragraph 2). The inspections must be meticulous and any identified corrosion must be addressed with appropriate repairs to ensure the aircraft remains airworthy (paragraph 2). Failure to comply with these airworthiness directives can result in serious consequences. Under the Civil Aviation Regulations 1998, non-compliance with the specified inspection intervals or failure to effect necessary repairs can lead to enforcement actions (paragraph 3). The penalties for breaches can include fines, suspension, or revocation of the aircraft's airworthiness certificate (paragraph 3). The maximum penalties, while not explicitly stated in the directive, can vary depending on the severity and frequency of the non-compliance (paragraph 3). These measures are in place to enforce safety standards and ensure the continued safe operation of the aircraft (paragraph 3).