AD/AC/80 Amdt 1 - Aileron Leading Edge Skin - Modification

Administered by Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts

Legislation au F2006B02141 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/80

Amdt 1


Aileron Leading Edge Skin - Modification 2/84

 

Applicability: All model 690C with S/Nos. 11600 through 11664 and 11666 through 11721, 11723,

11726 and 11727 (See Note).

 

All Model 690D with S/Nos. 15001 through 15006, 15008 through 15011, 15014,

15016 and 15018.

 

All Model 695 with S/Nos. 95000 through 95084. (See Note).

 

All Model 695A with S/Nos. 96001 through 96037, 96039, 96040, 96042, 96044

through 96052.

 

Note: Gulfstream Aerospace (Commander Division) SB. No. 178A must be accomplished in conjunction with the referenced requirement document for model 690C with S/Nos. 11600 through 11666 and model 695 with S/Nos. 95000 through

95063.

 

Document: Gulfstream Aerospace S.L. No. 357A.

 

Compliance: Unless already accomplished, within 100 hours time in service after 31 July 1983.

 

Background: This Directive has been amended because of various revisions to the original issue of the requirement document.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overview

The Civil Aviation Regulations 1998, enacted by the Commonwealth of Australia, address the need for comprehensive regulation of civil aviation safety within Australia. Specifically, PART 39 - 105 pertains to the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives, aiming to ensure the safe operation of aircraft by mandating specific safety measures and modifications. One such amendment, AD/AC/80Amdt 1, concerns the aileron leading edge skin modification for Twin Commander (Gulfstream/Rockwell/Aerocommander 500, 600 and 700) series aeroplanes. This amendment is designed to rectify identified safety issues by requiring specific modifications to the affected aircraft within a defined timeframe, ensuring that all applicable aircraft meet the updated safety standards to mitigate potential risks.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105 of the Civil Aviation Safety Authority Schedule of Airworthiness Directives, pertain to the aileron leading edge skin modification of Twin Commander (Gulfstream/Rockwell/Aerocommander 500, 600, and 700) series aeroplanes. This legislation applies to certain serial numbers of specific models: all model 690C with serial numbers ranging from 11600 to 11664 and 11666 to 11721, 11723, 11726, and 11727; all model 690D with serial numbers from 15001 to 15006, 15008 to 15011, 15014, 15016, and 15018; all model 695 with serial numbers from 95000 to 95084; and all model 695A with serial numbers from 96001 to 96037, 96039, 96040, 96042, 96044 to 96052. The directive mandates compliance within 100 hours’ time in service after 31 July 1983 unless the modification has already been accomplished. Additionally, Gulfstream Aerospace (Commander Division) Service Bulletin No. 178A must be completed in conjunction with the referenced requirement document for specified serial numbers of models 690C and 695. This directive is subject to revision as per Gulfstream Aerospace S.L. No. 357A.

Key Provisions

The Civil Aviation Regulations 1998, Part 39, Section 105 outlines specific requirements for the airworthiness of the Twin Commander (Gulfstream/Rockwell/Aerocommander 500, 600, and 700) series aeroplanes. Specifically, AD/AC/80 Amendment 1 pertains to modifications on the aileron leading edge skin. This directive applies to certain serial numbers of specific models: model 690C with serial numbers ranging from 11600 to 11664, 11666 to 11721, 11723, 11726, and 11727; model 690D with serial numbers from 15001 to 15006, 15008 to 15011, 15014, 15016, and 15018; model 695 with serial numbers from 95000 to 95084; and model 695A with serial numbers from 96001 to 96037, 96039, 96040, 96042, and 96044 to 96052. Note that Gulfstream Aerospace (Commander Division) Service Bulletin No. 178A must be completed in conjunction with the referenced requirement document for specific serial numbers of models 690C and 695. Operators and owners of the specified aircraft models must ensure compliance with these airworthiness directives. The modifications must be completed within 100 hours of time in service after 31 July 1983, unless already accomplished. Compliance is contingent on following the Gulfstream Aerospace Service Letter No. 357A and the referenced requirement document for the specific serial numbers indicated. Failure to comply with the airworthiness directives can result in serious safety implications and potential legal repercussions. The regulations mandate that these modifications be performed to ensure the continued airworthiness and safety of the aircraft. Non-compliance may lead to enforcement actions, including the grounding of the aircraft until the necessary modifications are made. This could also potentially result in civil or criminal penalties, depending on the severity and circumstances of the non-compliance. The maximum penalties for such breaches are detailed in the overarching Civil Aviation Act 1988 and the Civil Aviation Regulations 1988, which include fines and imprisonment for serious violations.

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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.