AD/RES/21 - Pacific Scientific Lap Belt Assemblies

Overview

The Civil Aviation Regulations 1998, under PART 39 - 107, address the critical issue of ensuring aircraft safety by regulating the maintenance and inspection of aircraft components. Enacted by the Australian Government, these regulations are designed to mitigate risks associated with the operation of civil aircraft by enforcing stringent safety standards. The problem addressed by these regulations is the potential for aircraft components to fail due to manufacturing defects, which could lead to catastrophic outcomes. The policy objective behind these regulations is to ensure the highest level of safety in civil aviation by mandating rigorous inspection and maintenance protocols for aircraft restraint equipment. The specific legislative instrument F2006B06589, concerning Pacific Scientific Lap Belt Assemblies, aims to rectify defects in certain aircraft restraint equipment that could compromise safety. By requiring inspections of Pacific Scientific TSO C22f lap belt assemblies and the replacement of incorrectly manufactured components, the regulations seek to prevent failures that could occur during aircraft operations. This directive underscores the commitment to maintaining the integrity and safety of civil aviation, reflecting the broader legislative intent to uphold stringent safety standards within the industry.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 107, mandates the Airworthiness Directives concerning restraint equipment, particularly focusing on Pacific Scientific Lap Belt Assemblies. This regulation applies to all Pacific Scientific lap belt assemblies with part number 1107177, regardless of the dash numbers. The directive requires the inspection of these assemblies to verify the material of the retractor shafts, which must be identified as part number 1106294-01. The inspection must ascertain whether the retractor shafts are made from the correct material by visually examining the end of the shaft; if the colour is gold anodise, the shaft is acceptable, but if it is dull battleship grey anodise, the shaft must be replaced. This inspection must be completed before issuing the Maintenance Release after 30 June 1988, and any defective shafts identified must be replaced within five hours of the aircraft being in service. The directive extends to the Commonwealth of Australia and is enforced by the Civil Aviation Safety Authority.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39, contains detailed safety requirements for aviation equipment, including the AD/RES/21 Restraint Equipment for Pacific Scientific Lap Belt Assemblies (section 1). This directive applies to all Pacific Scientific lap belt assemblies P/N 1107177, regardless of the dash numbers (section 2). The primary requirement is to inspect these assemblies to determine if they have retractor shafts made of the correct material (section 3). If the shaft is gold anodise, it is acceptable; however, if it is dull battleship grey anodise, the shaft must be replaced (section 4). This inspection must be completed prior to issuing the Maintenance Release after 30 June 1988, and any defective shafts must be replaced within five hours of being identified in service (section 5). The directive references FAA AD 87-20-05 dated 26 October 1987 and the Pacific Scientific Safety Advisory Letter on Mark V Reel Lap Belt Assembly for further guidance (section 6). Under this regulation, the main obligation falls on aviation maintenance personnel and entities responsible for the maintenance of the specified Pacific Scientific lap belt assemblies. They must conduct a thorough visual inspection of the retractor shafts to ensure they are made of the correct material and replace any shafts that are not gold anodise with those that are. This inspection and replacement process must be completed within the specified timeframes to ensure compliance with the regulations (section 7). Additionally, these entities must maintain records of all inspections and replacements as part of their compliance with the directive (section 8). Failure to comply with the requirements set out in AD/RES/21 could result in significant consequences. Non-compliance with the inspection and replacement requirements could lead to the continued use of defective equipment, which poses a safety risk to aircraft operations (section 9). While specific penalties for non-compliance are not detailed in the regulation itself, the Civil Aviation Safety Authority (CASA) has the authority to impose penalties under the Civil Aviation Act 1988. These penalties can include fines and other enforcement actions that may be taken to ensure compliance with aviation safety standards (section 10). Additionally, continued non-compliance could result in the grounding of affected aircraft until the required safety measures are implemented, potentially leading to substantial operational disruptions and financial losses (section 11).