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/74
Amdt 2
Fairleads On Aft Fuselage Frames - Installation 10/81
Applicability: All models 690A & 690B with S/Nos. 11100 to 11566.
All models 690C with S/Nos. 11600 to 11647. All models 695 with S/Nos. 95000 to 95033.
Document: Gulfstream American Commander Division S.B. No. 181B.
Note: Aeroplanes which have been modified to S.B. Nos. 181 or 181A may require additional work to comply with S.B. No. 181B.
Compliance: With 100 hours’ time in service after 31 October 1981.
Background: Revision “B” of S.B. No. 181 requires additional work to be performed on some aeroplanes which were modified to previous issues of S.B. No. 181.
Overview
The Civil Aviation Regulations 1998 (Cth) were enacted to provide comprehensive regulations for the safe operation of aircraft in Australia, ensuring the highest standards of safety and airworthiness. The Act addresses gaps in the existing regulatory framework to protect the public and aircraft personnel from potential hazards associated with civil aviation. The policy objective is to maintain and enhance the safety of civil aviation by prescribing requirements for aircraft operations, maintenance, and certification. The Regulations are overseen by the Civil Aviation Safety Authority (CASA), which is responsible for enforcing compliance with the provisions set forth in the legislation. The specific legislative instrument, F2006B02134, pertains to Airworthiness Directives concerning the Twin Commander (Gulfstream/Rockwell/Aerocommander 500, 600, and 700) series aeroplanes, focusing on the installation of fairleads on aft fuselage frames to ensure continued compliance with safety standards.
Scope and Application
The Civil Aviation Regulations 1998, as detailed in PART 39 - 105 under the Civil Aviation Safety Authority Schedule of Airworthiness Directives, specifically target the Twin Commander (Gulfstream/Rockwell/Aerocommander 500, 600 and 700) Series Aeroplanes for the installation of fairleads on aft fuselage frames. The applicability of this directive is strictly limited to certain model series and serial numbers, specifically all models 690A and 690B with serial numbers ranging from 11100 to 11566, all models 690C with serial numbers from 11600 to 11647, and all models 695 with serial numbers from 95000 to 95033. Compliance with this directive is mandated within 100 hours of time in service following the effective date of 31 October 1981. Notably, aircraft that have undergone modifications pursuant to Service Bulletins No. 181 or 181A may require additional work to conform to Service Bulletin No. 181B. This legislative instrument ensures the safety and airworthiness of specified aircraft models by mandating specific modifications, demonstrating the Commonwealth's commitment to aviation safety through precise regulatory measures.
Key Provisions
The Civil Aviation Regulations 1998, specifically in PART 39 - 105, detail the Civil Aviation Safety Authority's (CASA) schedule of airworthiness directives for certain aircraft models. In this case, the directive pertains to the Twin Commander (Gulfstream/Rockwell/ Aerocommander 500, 600 and 700) Series Aeroplanes. The primary focus of this directive is the installation of fairleads on the aft fuselage frames, as outlined in AD/AC/74 Amendment 2 (AD/AC/74Amdt 2), dated 10/81. This directive applies to specific models and serial numbers of these aircraft, namely all models 690A & 690B with serial numbers (S/Nos.) 11100 to 11566, all models 690C with S/Nos. 11600 to 11647, and all models 695 with S/Nos. 95000 to 95033. For context, the directive references Gulfstream American Commander Division S.B. No. 181B, and notes that aircraft modified under previous service bulletins (S.B. Nos. 181 or 181A) may require further modifications to comply with S.B. No. 181B. Compliance with these directives is mandatory within 100 hours of the aircraft being in service after 31 October 1981.
The obligations imposed by this airworthiness directive include ensuring that the specified aircraft undergo the necessary modifications to install the fairleads on the aft fuselage frames. This involves meticulous attention to the technical specifications and requirements set forth in the service bulletins. Aircraft owners, operators, and maintenance personnel must ensure that these modifications are completed accurately and in a timely manner to maintain the airworthiness of the aircraft. The directive underscores the importance of adhering to the prescribed timeframe and the need for comprehensive record-keeping of the modifications performed.
Failure to comply with the requirements of this airworthiness directive can result in significant consequences. Under the Civil Aviation Act 1988 and the Civil Aviation Regulations 1988, non-compliance may lead to enforcement actions by CASA. This can include the imposition of civil penalties, which may be substantial depending on the severity and impact of the non-compliance. Additionally, aircraft found to be non-compliant may be subject to operational restrictions, such as grounding, until the required modifications are satisfactorily completed. In severe cases, persistent non-compliance could also result in criminal charges, leading to fines and potential imprisonment for individuals responsible for the oversight or operation of the non-compliant aircraft.