AD/GAF-N22/33 - Rudder Structure and Trim Tab Control Rod - Inspection and Modification

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, encompass a broad array of regulations intended to ensure the safety and efficiency of civil aviation. Part 39, which includes the 105 Civil Aviation Safety Authority Schedule of Airworthiness Directives, focuses on the necessary requirements to maintain the airworthiness of specific aircraft models. This legislation addresses the problem of ensuring aircraft safety by issuing directives that compel aircraft owners and operators to adhere to certain maintenance and inspection protocols to prevent in-service failures and ensure compliance with safety standards. The policy objective of these regulations is to minimise aviation risks and ensure that aircraft operations meet the highest safety standards. One specific directive under this legislation is AD/GAF-N22/33, which pertains to the GAF N22 and N24 series aeroplanes. This directive mandates an inspection and, if necessary, a modification of the rudder structure and trim tab control rod. The directive was introduced due to reports of partial failure of an intercostal member and chafing of the trim tab control rod in service, as detailed in GAF Alert SB No. ANMD-55-11. The directive applies to all N22 and N24 series aeroplanes with serial numbers listed in the aforementioned alert, ensuring that these aircraft meet the required safety standards to prevent in-service failures and maintain airworthiness.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, establishes the authority and scope of the Civil Aviation Safety Authority (CASA) in enforcing Airworthiness Directives (ADs) related to aircraft safety. The particular AD/GAF-N22/33 pertains to the GAF N22 and N24 series aeroplanes and mandates the inspection and modification of rudder structures and trim tab control rods for specified serial numbers listed in GAF Alert SB No. ANMD-55-11. This directive applies to all N22 and N24 series aircraft with serial numbers detailed in the referenced alert, necessitating compliance with the requirements outlined in the manufacturer’s documentation. The directive’s geographic reach extends across the Commonwealth of Australia, ensuring uniform safety standards are met within the national jurisdiction. While the regulations themselves do not explicitly state exclusions or thresholds, compliance is mandatory for the specified aircraft, and any deviations must adhere to subordinate instruments issued by CASA.

Key Provisions

The primary sections of the Civil Aviation Regulations 1998 that govern this legislative instrument are Section 39.105 (AD/GAF-N22/33) which pertains to the rudder structure and trim tab control rod inspection and modification for GAF N22 and N24 series aeroplanes. This section outlines the applicability of the directive to specific serial numbers listed in GAF Alert SB No. ANMD-55-11, and mandates compliance with the requirements detailed in the document. The obligations imposed by these sections include a thorough inspection of the rudder structure and the trim tab control rod of the affected N22 and N24 series aeroplanes. Operators of these aircraft must ensure that all inspections are conducted according to the manufacturer's specifications as outlined in the requirement document. Modifications must also be implemented where necessary to prevent partial failure of the intercostal member and chafing of the trim tab control rod, thus maintaining the airworthiness of the aircraft. Failure to comply with the directives can result in severe consequences. Civil Aviation Regulations 1998 outline various penalties and legal repercussions for non-compliance. These can include fines, potential grounding of the aircraft, and possible revocation of airworthiness certificates. The maximum penalties for such breaches are determined by the severity of the non-compliance and can be significant, reflecting the importance of adhering to these safety directives to ensure the safety and reliability of air travel.