AD/SWSA226/89 - Main Landing Gear Drag Brace Assembly

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 



Fairchild (Swearingen) SA226 and SA227 Series Aeroplanes

 

AIRWORTHINESS DIRECTIVE


For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

 

AD/SWSA226/89 Main Landing Gear Drag Brace Assembly


11/2000 DM

 

Applicability: Models SA226-T, SA226-AT, SA226-T(B), SA226-TC, SA227-AT, SA227-TT, and

SA227-AC aircraft, all serial numbers, that incorporate one of the following:

 

For SA226 series aircraft: Ozone Industries Inc., part number OAS5453-1 (Revision “H”, “J”, “K”, or “N”), or part number OAS5453-5. These assemblies incorporate an Ozone Industries part number OAS5501-1 main landing gear drag brace assembly (consisting of both a drag brace and drag links); or,

 

For SA227 series aircraft: Ozone Industries Inc., 14,500 LB MGTOW, part number OAS5453-5. These assemblies incorporate an Ozone Industries part number OAS5501-1 main landing gear drag brace assembly (consisting of both a drag brace and drag links.

 

Requirement: Inspect in accordance with the technical requirements of FAA AD 2000-17-11 Amdt 39-11885.

 

Note 1: Fairchild Service Bulletins 226-32-068 and 227-32-043 refer.

 

Note 2: A copy of FAA AD 2000-17-11 may be obtained from the FAA Internet site http://av-info.faa.gov/ad or from the Authority.

 

Compliance:  As specified in the Requirement document for the initial 50 hour inspection, and follow-on repetitive inspection requirements; with a revised effective date of 27 September 2000.

 

This Airworthiness Directive becomes effective on 27 September 2000.

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 

 

 

Background: The FAA has received a report of an accident on an affected aircraft where the main landing gear failed due to drag brace assembly cracks. Random inspections of the affected aircraft fleet revealed nine other instances of cracks in the main landing gear drag brace assemblies.


 

David Alan Villiers

Delegate of the Civil Aviation Safety Authority 21 September 2000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


The above AD is notified in the Commonwealth of Australia Gazette on 27 September 2000.

Overview

The Civil Aviation Regulations 1998, which were enacted by the Australian Parliament, form the fundamental legislative framework for civil aviation in Australia. Part 39 of these regulations, specifically dealing with airworthiness, was updated with the introduction of the Airworthiness Directive (AD) for Fairchild (Swearingen) SA226 and SA227 series aeroplanes. This AD was introduced to address the identified safety issue of potential structural failure in the main landing gear drag brace assemblies due to cracking, which could lead to accidents. The AD was issued by a delegate of the Civil Aviation Safety Authority (CASA) and aims to ensure that aircraft maintain their airworthiness through mandatory inspections and corrective actions as specified. The policy objective behind this AD is to enhance the safety of civil aviation by addressing specific design deficiencies that could compromise the structural integrity of the affected aircraft models.

Scope and Application

This legislative instrument, part of the Civil Aviation Regulations 1998, pertains specifically to the maintenance and safety of Fairchild (Swearingen) SA226 and SA227 series aeroplanes, which includes all models SA226-T, SA226-AT, SA226-T(B), SA226-TC, SA227-AT, SA227-TT, and SA227-AC, regardless of their serial number. The regulation applies to these aircraft if they incorporate a specified main landing gear drag brace assembly from Ozone Industries Inc., including certain part numbers. This directive is designed to ensure that these aircraft meet safety standards by addressing potential unsafe conditions that may lead to structural failure, particularly concerning the main landing gear drag brace assemblies. The directive mandates inspections in line with the technical requirements of FAA AD 2000-17-11 Amdt 39-11885 and specifies compliance times for initial and follow-on inspections. The AD becomes effective from 27 September 2000, ensuring that all affected aircraft are inspected and maintained to prevent any further incidents.

Key Provisions

The Civil Aviation Regulations 1998 (CAR 1998), Part 39, Schedule of Airworthiness Directives, includes an Airworthiness Directive (AD) specifically addressing the Fairchild (Swearingen) SA226 and SA227 series aeroplanes (AD/SWSA226/89). The AD pertains to the Main Landing Gear Drag Brace Assembly, issued on 11/2000 by a delegate of the Civil Aviation Safety Authority (CASA) under section 39.1(1) of CAR 1998. This directive applies to specific models and serial numbers of the SA226 and SA227 series aircraft that incorporate particular parts from Ozone Industries Inc. The directive mandates an inspection of the main landing gear drag brace assembly in accordance with the technical requirements of FAA AD 2000-17-11 Amdt 39-11885. Compliance with this directive includes conducting the initial 50-hour inspection and subsequent repetitive inspections as specified in the requirement document, with an effective date of 27 September 2000. The AD imposes specific obligations on the parties governed by it. Owners and operators of SA226-T, SA226-AT, SA226-T(B), SA226-TC, SA227-AT, SA227-TT, and SA227-AC aircraft must ensure that their aircraft meet the inspection requirements detailed in the directive. This includes performing the initial inspection within the first 50 flight hours and adhering to the follow-on repetitive inspection schedule. Operators must also maintain records of all inspections conducted in compliance with the AD. The directive references relevant Fairchild Service Bulletins and provides a method for obtaining the FAA AD 2000-17-11 document. Failure to comply with the AD may lead to various consequences. The AD does not explicitly outline offences or penalties, but non-compliance with airworthiness directives is generally treated as a breach of CAR 1998. Such breaches can result in enforcement actions by CASA, which may include administrative penalties, revocation of airworthiness certificates, or other regulatory sanctions. The severity of these consequences can vary based on the nature and extent of the non-compliance. CASA has the authority to enforce compliance through inspections, audits, and other regulatory measures.

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.