AD/SWSA226/37 - Fuselage, Lower L.H. Cargo Area Belt Frames - Inspection and Modification

Overview

The Civil Aviation Safety Regulations 1998, administered by the Civil Aviation Safety Authority (CASA), were enacted to ensure the safety and efficiency of civil aviation in Australia. A particular directive within these regulations, AD/SWSA226/37, pertains to the Fairchild (Swearingen) SA226 and SA227 series aeroplanes, specifically addressing potential cracks in the lower left cargo area belt frames. This directive applies to all model SA226-AT with serial numbers AT-001 to AT-074 and all model SA226-TC with serial numbers TC-201 to TC-419. The objective of this directive is to mandate inspections and modifications as specified in the Fairchild Swearingen Service Bulletin No. 53-007, thereby mitigating risks associated with the identified structural issues and ensuring continued airworthiness of affected aircraft.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, mandates the applicability of Airworthiness Directives (AD) for ensuring the safety and compliance of certain aircraft models. In this case, the directive AD/SWSA226/37 pertains to the inspection and modification of fuselage lower left hand cargo area belt frames for Fairchild (Swearingen) SA226 and SA227 series aeroplanes. This directive applies to all SA226-AT models with serial numbers ranging from AT-001 to AT-074 and all SA226-TC models with serial numbers ranging from TC-201 to TC-419. The directive is underpinned by Fairchild Swearingen Service Bulletin No. 53-007 and requires compliance with its stipulations to mitigate the risk of cracks developing in the lower left belt frames at the cargo door latch receptacles. The scope of this regulation is explicitly defined by the Civil Aviation Safety Authority, and it extends across the specified aircraft models to ensure uniformity in maintenance and safety practices. The directive does not specify any exclusions or exemptions, thus encompassing all aircraft of the specified models within its jurisdictional reach.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, govern the maintenance and safety of civil aircraft in Australia. Under this part, the Civil Aviation Safety Authority (CASA) issues Airworthiness Directives (ADs) to ensure that aircraft remain in a safe and airworthy condition. One such directive, AD/SWSA226/37, pertains to the Fairchild (Swearingen) SA226 and SA227 series aeroplanes. This directive mandates specific inspections and modifications to address potential structural issues in the fuselage, particularly the lower left cargo area belt frames. The directive applies to SA226-AT models with serial numbers AT-001 to AT-074 and SA226-TC models with serial numbers TC-201 to TC-419. Compliance with this directive is to be achieved in accordance with the Fairchild Swearingen Service Bulletin No. 53-007. The AD/SWSA226/37 directive imposes clear obligations on the operators of affected aircraft. These operators must ensure that the specified inspection and modification procedures are carried out on the lower left cargo area belt frames. The inspections are aimed at identifying any cracks that may develop at the cargo door latch receptacles, which could compromise the structural integrity of the aircraft. The modifications required are intended to rectify or prevent these issues, ensuring the continued airworthiness of the aeroplanes. Operators must document and maintain records of all inspections and modifications performed in accordance with the directive, to demonstrate compliance with CASA requirements. Failure to comply with the provisions of AD/SWSA226/37 may result in severe civil and criminal penalties. Under the Civil Aviation Act 1988, non-compliance with ADs can lead to enforcement actions by CASA, including the imposition of fines and potential grounding of the aircraft. The maximum financial penalty for contravening an AD can be substantial, with fines reaching up to $300,000 for individuals and higher amounts for corporations, depending on the severity and frequency of the offence. Additionally, CASA may pursue criminal charges for more egregious violations, which could result in imprisonment for individuals responsible for the oversight of the aircraft. The consequences of non-compliance are designed to ensure that operators prioritise the safety and airworthiness of their aircraft, in line with regulatory standards.