AD/F27/101 - Cowlings - Gearbox Access Door - Modification

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Legislation au F2006B09671 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

 


Fokker F27 Series Aeroplanes

 

AD/F27/101 Cowlings - Gearbox Access Door - Modification 11/80

Applicability: All model F27 with S/Nos. as detailed in Fokker F27 SB No. F27/71-27. Document: Fokker F27 SB No. F27/71-27.

Compliance: Before 1 June 1981.

 

Background: SB No. F27/71-27 introduces a modification designed to prevent departure of the aeroplane with an unlocked gearbox access door.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overview

The Civil Aviation Regulations 1998, as amended, is the principal legislative instrument governing civil aviation in Australia and was enacted in 1998. The regulations are designed to ensure the safety of air travel by setting standards for aircraft, personnel, and operations. Part 39, which includes AD/F27/101, pertains to specific airworthiness directives for particular aircraft models, addressing known safety issues. The problem addressed by AD/F27/101 is the potential for an unlocked gearbox access door on Fokker F27 Series aeroplanes, which could lead to unsafe conditions during flight. This directive was introduced by the Civil Aviation Safety Authority (CASA) to mandate a modification that prevents the aircraft from departing with an unlocked gearbox access door, thus enhancing overall aircraft safety. The policy objective of AD/F27/101, as part of the Civil Aviation Regulations 1998, is to ensure that all Fokker F27 aeroplanes comply with specified safety standards to mitigate risks associated with operational failures. By requiring compliance with Service Bulletin No. F27/71-27, CASA aims to enforce structural modifications that address the specific vulnerability identified, thereby reducing the likelihood of accidents related to unsecured access doors. The directive applies to all Fokker F27 models with serial numbers as detailed in the referenced service bulletin and requires compliance before 1 June 1981 to ensure that all affected aircraft are modified in a timely manner.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105 concerning the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, applies to all Fokker F27 series aeroplanes with serial numbers as detailed in Fokker F27 Service Bulletin No. F27/71-27. This legislation is pertinent to aircraft manufacturers, operators, maintenance providers, and other entities involved in the operation and maintenance of the specified Fokker F27 aeroplanes, ensuring compliance with safety directives issued by the Civil Aviation Safety Authority. The jurisdictional reach of these regulations is national, as they apply across the Commonwealth of Australia, impacting all entities operating within this geographic area. The regulations do not explicitly state exclusions or exemptions, meaning that all Fokker F27 aeroplanes within the specified serial numbers must comply with the directives outlined in the Service Bulletin F27/71-27, which includes mandatory modifications to prevent the aeroplane from departing with an unlocked gearbox access door. The application of these regulations may be extended or further detailed through subordinate instruments, which can provide additional specifications or clarifications to ensure thorough compliance with safety standards.

Key Provisions

The Civil Aviation Regulations 1998, particularly Part 39 - 105, and the associated Schedule of Airworthiness Directives, focus on ensuring the safety and airworthiness of aircraft in Australia. Specifically, AD/F27/101 addresses the modification of the gearbox access door on Fokker F27 Series aeroplanes. This directive applies to all model F27 aircraft with specific serial numbers as outlined in Fokker F27 Service Bulletin No. F27/71-27. The primary requirement of this directive is to modify the gearbox access door to prevent the aeroplane from departing with the door unlocked (AD/F27/101). Compliance with this directive must be achieved before 1 June 1981, as stipulated in the directive. Entities governed by these regulations, such as aircraft owners, operators, and maintenance providers, are obligated to ensure that the modifications to the gearbox access door are completed as specified in the Fokker F27 Service Bulletin No. F27/71-27. This involves adhering to the technical and procedural guidelines provided in the service bulletin to guarantee the modification is correctly and safely executed. Failure to comply with these requirements can result in significant safety risks, potentially leading to unauthorised departures or other safety incidents. The Civil Aviation Regulations impose strict obligations on the parties involved to ensure adherence to airworthiness directives. Non-compliance with AD/F27/101 could result in serious consequences, including potential enforcement actions by the Civil Aviation Safety Authority (CASA). Under the Civil Aviation Act 1988, CASA has the authority to take legal action against entities that fail to comply with airworthiness directives, which may include fines, enforcement notices, or other regulatory measures. The severity of the penalties depends on the nature and extent of the non-compliance, but the potential for significant financial and operational repercussions underscores the importance of strict adherence to the regulations. In the event of a breach of these directives, the Civil Aviation Regulations provide for both civil and criminal penalties. Civil penalties can include fines of up to $210,000 for corporations and $42,000 for individuals, depending on the severity of the breach. Additionally, criminal penalties may apply, with maximum fines of up to $1,050,000 for corporations and $210,000 for individuals, along with potential imprisonment terms. These severe penalties reflect the critical importance of maintaining aircraft airworthiness and the potential safety risks associated with non-compliance with 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.