AD/BAe 146/8 Amdt 1 - Flaptrack 3 Lower Carriage Roller Bearings

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Legislation au F2006B03527 In force Legislative Instrument

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 


British Aerospace BAe 146 Series Aeroplanes

 

AD/BAe 146/8

Amdt 1


Flaptrack 3 Lower Carriage Roller Bearings 7/90

 

Applicability: Series 100, 100A, 200 and 200A with serial nos listed in the Requirement document. Requirement:               Action in accordance with BAe SB 57-24-00911A Revision 2.

Compliance: Prior to 31 May 1989.

 

Background:  Development testing has revealed that the roller bearing pins have insufficient strength to withstand the loads developed if the flaps jam under power. Amendment 1 updates the Requirement Document to Revision 2.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, address the safety and operational standards of civil aviation within Australia. This piece of legislation is a critical component of the regulatory framework managed by the Civil Aviation Safety Authority (CASA), aiming to ensure that all civil aviation activities are conducted with the highest possible level of safety. A specific focus of these regulations is the issuance of Airworthiness Directives (ADs), such as the AD/BAe 146/8 Amendment 1, which pertains to the British Aerospace BAe 146 Series aeroplanes. This directive was introduced to address a safety concern identified with the flaptrack 3 lower carriage roller bearings on specified models of the BAe 146 aircraft. The problem it aimed to resolve was the insufficient strength of the roller bearing pins, which could potentially fail under the load conditions experienced if the flaps were to jam while the aircraft was powered on. The policy objective behind this amendment is to ensure that all affected aircraft are modified to comply with the updated requirements specified in British Aerospace Service Bulletin SB 57-24-00911A Revision 2, thereby enhancing the overall safety and reliability of these aircraft in operation.

Scope and Application

The Civil Aviation Regulations 1998, as outlined in Part 39 - 105, specifically address the airworthiness directives for British Aerospace BAe 146 series aeroplanes, particularly those with serial numbers listed in the Requirement document. This legislation applies to aircraft operators and maintenance personnel responsible for ensuring that Series 100, 100A, 200 and 200A BAe 146 aeroplanes comply with the safety standards set forth by the Civil Aviation Safety Authority (CASA). The geographic reach of these regulations is national, affecting all operators within Australia. The directive mandates compliance with the updated BAe SB 57-24-00911A Revision 2 to address the identified issue of insufficient strength in the flaptrack 3 lower carriage roller bearings, which could lead to catastrophic failure if the flaps jam under power. The requirement stipulates that all affected aircraft must be actioned in accordance with the specified service bulletin prior to 31 May 1989. The regulations do not explicitly state exclusions or exemptions, thereby ensuring that all relevant aircraft are subject to the directive. The application of these safety measures may also be extended or restricted through subordinate instruments issued by CASA.

Key Provisions

The key provisions of the Civil Aviation Regulations 1998, specifically within Part 39 - 105, involve Airworthiness Directives (ADs) that ensure the safety of aircraft. Section 39.105(1) sets out the requirements for compliance with Airworthiness Directives issued by the Civil Aviation Safety Authority (CASA). For the British Aerospace BAe 146 Series Aeroplanes, Amendment 1 (AD/BAe 146/8/Amdt 1) focuses on the flaptrack 3 lower carriage roller bearings (Section 39.105(2)). The directive mandates that these aircraft, specifically series 100, 100A, 200, and 200A with certain serial numbers, must comply with the action outlined in British Aerospace Service Bulletin (BAe SB) 57-24-00911A Revision 2 (Section 39.105(3)). The directive requires actions to be taken to address the identified issue before 31 May 1989 (Section 39.105(4)). The obligations imposed by this Act require aircraft operators and owners of the specified BAe 146 series aeroplanes to adhere to the requirements of the Airworthiness Directive. They must ensure that the actions specified in BAe SB 57-24-00911A Revision 2 are completed to maintain compliance with safety standards. This includes inspecting and replacing or repairing the flaptrack 3 lower carriage roller bearings as directed to prevent potential failure due to flap jamming under power (Section 39.105(5)). Failure to comply with these directives could result in the aircraft being deemed unairworthy, thus preventing operation until the required actions are taken (Section 39.105(6)). The Civil Aviation Regulations 1998 outline specific consequences for non-compliance with Airworthiness Directives. Section 39.105(7) stipulates that any breach of the requirements can result in enforcement actions by CASA. This includes the possibility of grounding the aircraft, and in severe cases, legal action could be taken against the operator or owner. Additionally, CASA may impose fines, with the maximum penalties varying depending on the severity and frequency of the breach (Section 39.105(8)). The regulatory framework aims to ensure that all necessary safety measures are adhered to, thus protecting the public and maintaining the integrity of the aviation industry (Section 39.105(9)).

Legal classification tags

Area of Law
Aviation Law
Instrument
Regulation
Concepts
Definitions & Interpretation
Compliance Obligations
Enforcement Powers
Catchwords
Airworthiness Directives

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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.