AD/AC/28 - Main Landing Gear Truss - Inspection

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Legislation au F2006B02087 Not 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

 


Twin Commander (Gulfstream/Rockwell/ Aerocommander 500, 600 and 700) Series Aeroplanes

 

AD/AC/28 Main Landing Gear Truss - Inspection 10/62

Applicability: All models: S/Nos. 231 to 892 except 871 and 875. Document:  Aero Commander SL No. 129.

Compliance: Forthwith.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overview

The Civil Aviation Regulations 1998, specifically under Part 39 - 105, includes Airworthiness Directives aimed at ensuring the safety of civil aviation operations. One such directive, AD/AC/28, pertains to the inspection of the main landing gear truss for Twin Commander (Gulfstream/Rockwell/Aerocommander 500, 600, and 700) series aeroplanes. This directive was enacted by the Civil Aviation Safety Authority (CASA) to address safety concerns identified in certain aircraft models within the specified serial number range. The policy objective of this directive is to mandate immediate compliance to prevent potential structural failures in the main landing gear, thereby maintaining the highest safety standards for aircraft operations in Australia. The directive is applicable to all models with serial numbers between 231 and 892, excluding serial numbers 871 and 875, as outlined in Aero Commander Service Letter No. 129.

Scope and Application

The Civil Aviation Safety Authority (CASA) oversees the safety of aviation operations within Australia through various regulations and directives, one of which is the AD/AC/28 Main Landing Gear Truss Inspection for Twin Commander (Gulfstream/Rockwell/ Aerocommander 500, 600, and 700) Series Aeroplanes. This directive applies specifically to aircraft serial numbers ranging from 231 to 892, excluding the serial numbers 871 and 875. The directive mandates immediate compliance, requiring a thorough inspection of the main landing gear truss to ensure continued airworthiness. The regulation is part of the broader framework established under the Civil Aviation Regulations 1998, which applies throughout the Commonwealth of Australia. This particular directive is instrumental in maintaining safety standards by identifying and rectifying potential issues within the specified aircraft models. Any deviations or exclusions from this directive must be substantiated by relevant authorities and documented accordingly.

Key Provisions

The Civil Aviation Regulations 1998, under PART 39 - 105, specifically address the requirements for the airworthiness of certain aircraft models through Airworthiness Directives. One such directive is AD/AC/28, which pertains to the main landing gear truss of Twin Commander (Gulfstream/Rockwell/Aerocommander 500, 600, and 700) series aeroplanes. The directive mandates that all models with serial numbers ranging from 231 to 892, excluding 871 and 875, undergo inspection of their main landing gear truss as outlined in Aero Commander Service Letter No. 129. Compliance with this directive must be immediate (s. 10/62). Under the Civil Aviation Regulations 1998, the key obligation imposed on the operators and owners of the specified Twin Commander series aeroplanes is to ensure that the main landing gear truss is inspected without delay. This inspection must be carried out in accordance with the instructions provided in Aero Commander Service Letter No. 129. Failure to comply with this requirement can lead to serious consequences, as the safety and airworthiness of the aircraft are directly affected. The Civil Aviation Regulations 1998 do not explicitly detail the penalties for non-compliance with the Airworthiness Directive AD/AC/28. However, the overarching regulations provide for potential enforcement actions in cases of non-compliance with airworthiness directives. Generally, non-compliance can result in severe civil and criminal penalties. Civil penalties might include fines, while criminal penalties can range from fines to imprisonment, depending on the severity and impact of the non-compliance on aviation safety. The maximum penalties are determined by the specific provisions of the Civil Aviation Act 1988 and can vary widely based on the nature and consequences of the breach.

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Area of Law
Aviation Law
Instrument
Regulation
Concepts
Definitions & Interpretation
Regulatory Standards
Compliance Obligations

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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.