AD/IAI-W/7 - Pilot and Co-Pilot Seat Attachments - Inspection

Overview

The Civil Aviation Regulations 1998, as amended by F2006B10807, aim to address the safety concerns regarding the attachment of pilot and co-pilot seats in specific models of Israel Aircraft Industries 1123 and 1124 (Westwind) series aeroplanes. Enacted by the Australian Government, the legislation mandates inspections of seat attachments to prevent insufficient support and potential engagement issues that could compromise safety. This regulation was introduced to ensure that all specified aircraft models undergo necessary checks within 150 hours of time in service following 31 December 1981, as outlined in I.A.I. SB No. WW-24-22. The policy objective is to enhance aviation safety by ensuring that seat attachments meet required standards, thereby reducing the risk of accidents due to seat instability.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to all individuals and entities involved in the operation and maintenance of Israel Aircraft Industries (IAI) 1123 and 1124 (Westwind) Series Aeroplanes with serial numbers (S/Nos.) 152, 156, 174, 181, 185, 186, and 187 to 335. This regulation is enforced under the authority of the Civil Aviation Safety Authority (CASA) and has a national jurisdictional reach across Australia, ensuring uniform standards in aviation safety. The Airworthiness Directive (AD) mandates that these specific models undergo a compliance inspection for their pilot and co-pilot seat attachments within 150 hours of time in service after 31 December 1981, as detailed in I.A.I. Service Bulletin No. WW-24-22. The directive aims to address potential issues of insufficient seat support attach angle engagement, thereby enhancing the safety and reliability of the aircraft. This legislation does not explicitly state any exclusions or exemptions, implying that all specified aircraft must comply with the directive unless otherwise specified in subordinate instruments or CASA notifications.

Key Provisions

The key provision of the Civil Aviation Regulations 1998, as outlined in the legislative instrument F2006B10807, pertains to the applicability and compliance of specific aircraft models. Section 12/81 of Part 39 - 105 mandates the inspection of pilot and co-pilot seat attachments in Israel Aircraft Industries (IAI) 1123 and 1124 (Westwind) series aeroplanes, specifically for models 1124/1124A with serial numbers (S/Nos.) ranging from 152 to 335. This inspection is required to address the potential issue of insufficient seat support attach angle engagement. The obligations imposed by this directive are clear and specific. Operators of the affected aircraft must ensure that the inspections are carried out in accordance with the guidelines provided in IAI Service Bulletin No. WW-24-22. This compliance must be achieved within 150 hours of time in service after 31 December 1981, or within a certain timeframe as may be specified by the Civil Aviation Safety Authority (CASA). The inspections are critical to maintaining the airworthiness of the aircraft and ensuring the safety of all personnel onboard. Failure to comply with the requirements of this directive can result in severe consequences. The regulations underscore that any breach of the stipulated inspection protocols could lead to significant safety risks, potentially resulting in accidents or incidents. While the specific penalties for non-compliance are not detailed in the excerpt, such breaches typically attract penalties under the Civil Aviation Act 1988, which can include fines and other enforcement actions by CASA. The potential for civil or criminal liability also exists, depending on the severity of the non-compliance and its impact on aviation safety.