Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, establish the framework for ensuring the safety and efficiency of civil aviation in the country. One of the critical components of this framework is the regulation of airworthiness directives, which are legally binding orders that require the correction of an unsafe condition on an aircraft. This legislative instrument, F2006B02181, specifically addresses a safety concern related to the Gulfstream (Rockwell) 112 Series Aeroplanes, mandating the inspection and/or replacement of elevator and rudder hinge fittings to prevent potential elongation of holes in the hinge fittings and the development of cracks in the rudder spar, which could compromise the aircraft's safety. The policy objective is to maintain the highest safety standards in civil aviation by ensuring that known safety issues are promptly addressed. The enacting body, the Parliament, established these regulations to fill a critical gap in ensuring the ongoing airworthiness of aircraft by mandating timely inspections and necessary repairs. This particular directive, AD/AC-112/11, applies to specific Gulfstream 112 Series Aeroplanes, identifying the serial numbers of affected models and setting a compliance timeline of 100 hours’ time in service after 31 March 1980, unless the required actions have already been completed. By enforcing such measures, the Civil Aviation Regulations 1998 aim to prevent accidents and enhance the overall safety of air travel in Australia.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105 concerning the Civil Aviation Safety Authority Schedule of Airworthiness Directives, applies to certain Gulfstream (Rockwell) 112 Series aeroplanes to ensure safety and compliance with aviation standards. This legislation mandates that all models 112 with serial numbers 13003 to 544, as well as all models 112TC and 112TCA with serial numbers 13001 to 13309, adhere to the specified airworthiness directive concerning elevator and rudder hinge fittings. The directive requires inspection and/or replacement of these components to prevent potential issues such as elongation of holes in the hinge fittings and cracks in the rudder spar, which could compromise the safety of the aircraft. Compliance is mandatory unless the required actions were already completed within 100 hours of time in service following 31 March 1980. This regulation applies nationwide, governed by the Commonwealth of Australia, and extends its reach through subordinate instruments to ensure that the specified safety measures are uniformly enforced across the relevant aircraft within the designated serial number ranges.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39, includes a schedule of airworthiness directives (ADs) that govern the safety standards for various aircraft. One such directive, AD/AC-112/11, applies to Gulfstream (Rockwell) 112 Series Aeroplanes and mandates the inspection and, if necessary, the replacement of elevator and rudder hinge fittings (Part 39, 105). This directive is applicable to all models 112 with serial numbers (S/Nos.) ranging from 13003 to 544, and to models 112TC and 112TCA with S/Nos. 13001 to 13309. The requirement is that compliance with this directive must occur within 100 hours of time in service after 31 March 1980, unless it has already been fulfilled. The directive references Rockwell International Service Letter No. SL-112-46.3/80 for detailed compliance instructions. The AD/AC-112/11 imposes specific obligations on the owners and operators of the affected aircraft. These parties must ensure that the inspection and, if necessary, the replacement of the elevator and rudder hinge fittings are carried out as per the directive's requirements. This involves adhering to the specified timeframe of within 100 hours of time in service following 31 March 1980. The directive also mandates that any replacement parts used must meet the specifications outlined in Rockwell International Service Letter No. SL-112-46.3/80. Failure to comply with these obligations could result in the aircraft being deemed non-airworthy, thereby affecting its ability to operate legally. Failure to comply with AD/AC-112/11 may lead to significant consequences, both civil and criminal. Under the Civil Aviation Act 1988, non-compliance can result in substantial fines and potential imprisonment for those responsible. The exact penalties are determined by the courts but can be severe given the importance of adhering to airworthiness directives for safety reasons. Additionally, the Civil Aviation Safety Authority (CASA) has the authority to issue enforcement actions, such as grounding the aircraft, until the required inspections and repairs are completed to the satisfaction of CASA. This underscores the critical nature of adhering to these safety directives to ensure the safe operation of the aircraft.