AD/INST/14 - SEP 6 Automatic Pilot Pitch Computer Clutch Circuit - Modification

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Legislation au F2006B10815 Not in force Legislative Instrument

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 


Instruments and Automatic Pilots

 

AD/INST/14 SEP 6 Automatic Pilot Pitch Computer

Clutch Circuit - Modification

Applicability: SEP 6 pitch computer 524SUE4. Document:  Smiths SB 22-780.

Compliance: Within 3000 hours time in service after 30 April 1975.


2/75

Overview

The Civil Aviation Regulations 1998, specifically within Part 39, establish a framework for ensuring the safety of air navigation and aircraft operations in Australian airspace. These regulations are instrumental in implementing international standards set by the International Civil Aviation Organization and aim to address the critical need for consistent and rigorous safety measures in civil aviation. Enacted by the Parliament of Australia, the overarching policy objective of these regulations is to protect public safety and maintain high standards of airworthiness for all aircraft operating within the country. The legislative instrument F2006B10815 (AD/INST/14), concerning the SEP 6 Automatic Pilot Pitch Computer Clutch Circuit Modification, is an example of the detailed directives issued under these regulations to ensure compliance with safety directives for specific aircraft components. This legislative instrument is designed to address particular safety concerns by mandating modifications to specific aircraft parts, thereby enhancing overall aviation safety and operational reliability.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 107, includes an Airworthiness Directive (AD) concerning the automatic pilots within the framework of the Civil Aviation Safety Authority. This legislation applies to all aircraft fitted with the SEP 6 pitch computer, specifically the 524SUE4 model, as detailed in document Smiths SB 22-780. The directive mandates compliance within 3000 hours of time in service after the specified date of 30 April 1975, thereby establishing a clear timeline for adherence. This regulation extends its reach to all aircraft operators and maintenance entities within the Commonwealth of Australia, ensuring uniform safety standards across the aviation industry. The directive does not explicitly state any exclusions or exemptions but implies that all relevant aircraft must comply with the specified modifications to maintain their airworthiness. The scope and application of this AD can be further detailed or adjusted through subordinate instruments issued by the Civil Aviation Safety Authority.

Key Provisions

The Civil Aviation Regulations 1998 (Cth), Part 39, Subpart 107 specifically addresses the Civil Aviation Safety Authority Schedule of Airworthiness Directives, focusing on the SEP 6 Automatic Pilot Pitch Computer Clutch Circuit Modification as outlined in AD/INST/14. This Airworthiness Directive applies to the SEP 6 pitch computer model 524SUE4, which is documented in Smiths SB 22-780. According to Section 2/75, compliance with the directive is mandatory for aircraft within 3000 hours of time in service after 30 April 1975. The primary obligation imposed by this directive is that the SEP 6 pitch computer must undergo a specified modification to the clutch circuit. This modification is necessary to ensure the continued airworthiness of the aircraft and to mitigate any potential safety risks associated with the pitch computer's operation. The requirement is clear: the modification must be completed within the stipulated timeframe to maintain compliance with the Civil Aviation Regulations. Failing to comply with this Airworthiness Directive may result in significant consequences. Under the Civil Aviation Act 1988 (Cth), non-compliance could lead to enforcement actions taken by the Civil Aviation Safety Authority (CASA). The penalties for not adhering to the directive can include fines, suspension or revocation of airworthiness certificates, and potentially criminal charges for individuals found responsible. The maximum penalties for breaches may vary, but they are intended to ensure that aircraft operators and maintenance personnel take the required actions to maintain safety standards. In addition to potential criminal penalties, non-compliance can also have civil implications. Aircraft owners and operators may face civil suits for damages if an accident or incident occurs due to the non-compliance with the Airworthiness Directive. This could result in substantial financial liabilities and damage to the reputation of the entity involved. Therefore, it is crucial for all stakeholders to understand and adhere to the requirements set forth in AD/INST/14 to avoid these serious consequences.

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Area of Law
Aviation Law
Instrument
Legislative Instrument
Concepts
Compliance Obligations
Regulatory Standards
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.