AD/HU 369/16 - Passenger Interior - Modification

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of the Commonwealth of Australia, aim to ensure the safety and efficacy of civil aviation within Australia. Part 39, specifically addressing Airworthiness Directives, was introduced to fill gaps in safety standards and operational procedures for aircraft, thereby ensuring that all civil aviation activities adhere to stringent safety regulations. The policy objective is to mitigate risks and enhance the safety of air travel by establishing comprehensive guidelines for aircraft maintenance and operation. One such directive, AD/HU 369/16, pertains to McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters, requiring modifications to passenger interiors to ensure safety during takeoff and landing. The specific directive mandates that all model 369H helicopters with passenger interiors must display conspicuous placards instructing occupants not to sit in the aft-facing seats during critical phases of flight. Additionally, it requires structural modifications to these seats to provide adequate head and back support, ensuring passenger safety. Compliance with these directives is essential, with deadlines set for the installation of placards and the structural modifications, ensuring that the aircraft remain airworthy and compliant with safety standards.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, mandate safety directives issued by the Civil Aviation Safety Authority (CASA) which apply to certain aircraft types and configurations, including the McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters. This legislative instrument applies to all model 369H helicopters with passenger interiors as per Hughes drawing 369H90035. The regulation imposes specific requirements for the installation of placards and modifications to the passenger interior, particularly for aft-facing seats, to ensure compliance with safety standards. The requirement to install two conspicuous placards, worded "DO NOT OCCUPY FOR TAKEOFF AND LANDING," must be completed within 25 hours of time in service after 21 May 1975, while modifications to the passenger interior, including the installation of occupant head and back support, must be done before carrying passengers in the aft-facing seats. This directive underscores the importance of adhering to specific safety measures to mitigate risks associated with passenger seating arrangements in these aircraft models.

Key Provisions

The Civil Aviation Regulations 1998, under Part 39, specifically section 105, sets out the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives (AD). The directive AD/HU 369/16 pertains to McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters, focusing on modifications to the passenger interior (section 1). The directive applies to all model 369H helicopters with a passenger interior as per Hughes drawing 369H90035 (section 2). The key requirement is the installation of two placards stating “DO NOT OCCUPY FOR TAKEOFF AND LANDING” on the aft face of the forward divider, centred above each seat cushion (section 3). Additionally, the passenger interior must be modified by installing occupant head and back support to the aft-facing seats, following an approved scheme by the Secretary, and the aforementioned placards must be removed (section 4). The directive imposes obligations on the operators of these helicopters. They must ensure that the specified placards are installed within 25 hours of the helicopter’s time in service after 21 May 1975 (section 5). Additionally, the interior modifications must be completed before any passengers are carried in the aft-facing seats (section 6). Failure to comply with these requirements could result in the aircraft being deemed non-airworthy, which could lead to significant operational disruptions and potential safety hazards. In terms of enforcement, any breach of the requirements set out in this directive could lead to serious consequences. CASA has the authority to take action against non-compliance, which may include imposing fines or other penalties (section 7). While the specific penalties are not detailed in the provided text, under the Civil Aviation Act 1988, breaches of regulations can result in civil penalties, such as fines up to a substantial amount depending on the severity of the breach, or criminal penalties for more serious violations. Operators must ensure strict adherence to the directive to avoid these repercussions.