AD/EMY/20 - Life Jackets - Pressure Test

Overview

The Civil Aviation Regulations 1998, under Part 39 - 107, mandate airworthiness directives to ensure the safety of aviation operations, particularly focusing on the maintenance and testing of emergency equipment. This particular regulation, AD/EMY/20, was introduced to address the deterioration of polyurethane coatings on life jackets manufactured before March 1980, which were found to be susceptible to degradation under conditions of high heat and humidity. The problem arose from the need to ensure that life jackets, a critical safety component, maintain their integrity and effectiveness over time. The policy objective stated in the regulation is to mandate a specific pressure test for life jackets to verify their functionality and compliance with safety standards. Enacted by the Commonwealth of Australia, the regulation is administered by the Civil Aviation Safety Authority and requires compliance with the stipulated pressure test during the next scheduled inspection. This requirement is supported by references to the appropriate RFD Overhaul Manual and Service Bulletin 25-33, ensuring that all stakeholders are aware of the necessary procedures and standards to be met. The regulation aims to uphold the highest safety standards in civil aviation by addressing the specific vulnerabilities identified in certain types of life jackets.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 107, includes the Civil Aviation Safety Authority Schedule of Airworthiness Directives, which pertains to emergency equipment for aviation safety. The directive AD/EMY/20 addresses the mandatory pressure testing of life jackets produced by RFD, including types 102 MKI, 1B, MK2, 2A, 2B, and 2BA for adults and crew, as well as type 105 MKI for infants, that were manufactured prior to March 1980. This directive applies to ensuring that the life jackets undergo a specified pressure test to maintain their airworthiness and safety standards. The testing procedures outlined in the relevant RFD Overhaul Manual must be followed, requiring a 1400 mm (55 inches) water gauge pressure test for 5 to 10 minutes, followed by a readjustment to 305mm (12 inches) water gauge and another test for 5 minutes, with the final pressure not dropping below 275 mm (10.8 inches) water gauge after temperature correction. This directive is in response to findings that earlier polyurethane coatings used in these life jackets are prone to deterioration under high heat and humidity conditions, and therefore, compliance is required at the next scheduled inspection. The regulation extends its applicability across the Commonwealth of Australia, governing entities and persons involved in the aviation industry, particularly those maintaining or using the specified life jackets.

Key Provisions

The key operative sections of the Civil Aviation Regulations 1998, specifically under Part 39 - 107, mandate the compliance of life jackets with particular safety standards. Section AD/EMY/20 outlines the requirements for a pressure test to ensure the functionality and integrity of life jackets manufactured by RFD. The regulation applies to all RFD life jackets Type 102 MKI and 1B, MK2, 2A, 2B and 2BA for adult and crew, as well as type 105 MKI infant life jackets produced before March 1980 (section AD/EMY/20). The regulation requires that these life jackets undergo a 1400 mm (55 inches) water gauge pressure test for a duration of 5 to 10 minutes, followed by readjustment of the pressure to 305 mm (12 inches) water gauge. After an additional 5 minutes, when adjusted for temperature variations, the pressure should not drop below 275 mm (10.8 inches) water gauge. This test procedure is detailed in the relevant RFD Overhaul Manual, Section B, Testing, and further guidance is provided in RFD Service Bulletin 25-33. The obligations imposed by the regulation necessitate that the specified life jackets meet the prescribed pressure test standards to ensure they remain effective in emergency situations. This requirement applies to all life jackets manufactured before the specified date, thereby mandating the review and overhaul of these life jackets during their next scheduled inspection. The regulation also mandates that the appropriate overhaul manuals are updated to reflect the requirements outlined in RFD Service Bulletin 25-33, ensuring that all relevant personnel are aware of and can comply with the latest safety standards. Non-compliance with the pressure test requirements and failure to adhere to the updated overhaul procedures may result in significant consequences. The Civil Aviation Safety Authority (CASA) may impose penalties for breaches of these regulations. While the specific penalties are not detailed in the provided text, typical consequences for non-compliance with aviation safety regulations can include fines, enforcement actions, and potentially grounding of aircraft if the safety of passengers and crew is compromised. The severity of the penalty often depends on the nature and extent of the breach, with potential maximum penalties outlined in other sections of the Civil Aviation Regulations 1998. It is crucial for manufacturers, operators, and inspectors to adhere strictly to these requirements to maintain the highest safety standards in civil aviation.