Overview

The Civil Aviation Regulations 1998, amended by the instrument F2006B02774, was enacted to ensure that specific maintenance and inspection protocols are followed to enhance the safety of Boeing 727 Series aeroplanes. This legislative instrument addresses potential structural weaknesses in the outboard aileron tab mast fittings of these aircraft, a problem identified through previous service bulletins and airworthiness directives. The instrument was enacted by the Commonwealth of Australia's Civil Aviation Safety Authority to comply with international safety standards and to mitigate risks associated with the specified components. The policy objective is to ensure that all applicable aircraft are inspected and, if necessary, modified to maintain airworthiness and passenger safety, thus aligning with broader aviation safety governance frameworks. The enforcement of these regulations is overseen by the Civil Aviation Safety Authority, which mandates inspections and modifications to be carried out by authorised personnel to ensure compliance and adherence to safety standards. This approach aims to prevent potential failures that could compromise the structural integrity of the aircraft, thereby protecting passengers, crew, and the public.

Scope and Application

The Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives under the Civil Aviation Regulations 1998, specifically Part 39 - 105 AD/B727/71, applies to all Boeing 727 series aeroplanes with specific serial numbers as detailed in Service Bulletin (SB) No. 57-137. The directive mandates an inspection and modification of the outboard aileron tab mast fitting. This regulation is applicable across the Commonwealth of Australia and ensures the airworthiness and safety of Boeing 727 aeroplanes operating within its jurisdiction. The inspection must initially occur within 500 hours of time in service after 28 November 1975, unless already completed, and then at intervals not exceeding 1500 hours time in service until the modification is performed by replacing all blind rivets with bolts and nut-plates as per Boeing SB No. 727-57-137, Rev. 2 or FAA AD 75-20-09, Amdt. 39-2375.11/75. The modification must be completed before 1 July 1977. No specific exclusions, exemptions, or thresholds are mentioned in this directive, and compliance is mandatory for the specified aircraft models.

Key Provisions

The main operative sections of the Civil Aviation Regulations 1998, PART 39 - 105, pertaining to the Boeing 727 Series Aeroplanes, specifically address the outboard aileron tab mast fitting. Section AD/B727/71 mandates the inspection and modification of these fittings to ensure compliance with safety standards. The applicability of these provisions extends to all models with serial numbers detailed in Service Bulletin (SB) No. 57-137. The compliance section (section 1) requires that an initial inspection be carried out within 500 hours of time in service after 28 November 1975, or if already completed, subsequent inspections must occur at intervals not exceeding 1500 hours until the modification is performed. The modification involves replacing all blind rivets with bolts and nut-plates, as specified in Boeing SB No. 727-57-137, Rev. 2, or FAA AD 75-20-09, Amdt. 39-2375.11/75. The obligations imposed by this legislation on the parties or entities it governs are clear and straightforward. Operators of Boeing 727 aeroplanes must adhere to the inspection and modification requirements outlined in the Civil Aviation Regulations. They must ensure that the initial inspection is completed within the stipulated timeframe, and subsequent inspections are conducted at regular intervals. Additionally, operators are obligated to perform the specified modification by replacing the blind rivets with bolts and nut-plates before 1 July 1977. These requirements are designed to maintain the airworthiness of the aircraft and ensure the safety of passengers and crew. Failure to comply with the provisions set out in the Civil Aviation Regulations can result in significant legal consequences. While the specific penalties are not detailed in the text provided, under Australian aviation law, non-compliance with airworthiness directives can lead to severe civil or criminal penalties. These may include fines, the grounding of the aircraft, or even criminal charges for individuals or corporations responsible for the non-compliance. The severity of the penalties reflects the importance of adhering to these safety standards to prevent accidents and ensure the safe operation of aircraft.