AD/BEECH 90/72 - Pilot Seats - Reinforcement

Overview

The Civil Aviation Regulations 1998, specifically Part 39 - 105, was enacted by the Commonwealth of Australia to address issues pertaining to the airworthiness directives for aircraft, ensuring that they meet the necessary safety standards. This legislation was introduced to safeguard the integrity and safety of aircraft, particularly in light of incidents where structural failures during emergencies resulted in injuries. The policy objective is to mandate and ensure compliance with airworthiness directives to maintain high safety standards in civil aviation. This legislative instrument, F2006B04258, targets the Beechcraft 90 and 65-90 (King Air) series aeroplanes, focusing on the reinforcement of pilot seats to prevent failures that could compromise safety during critical phases of flight. The enactment of this directive follows a specific incident where the failure of the pilot’s seats during an emergency landing contributed to injuries, prompting the Civil Aviation Safety Authority to issue an airworthiness directive. This directive mandates the reinforcement of the pilot seat frame assembly for certain models of Beechcraft 90 and 65-90 aeroplanes, ensuring compliance with the specified requirements by a designated deadline. The directive references FAA AD 83-21-06 and aims to rectify the identified safety issue by mandating the installation of a seat frame brace kit to reinforce the seat frame, thereby preventing similar incidents in the future.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, mandate the reinforcement of pilot seats in Beechcraft 90 and 65-90 (King Air) series aeroplanes through the issue of Airworthiness Directive AD/BEECH 90/72. This regulation applies to all models of the 65/90 series equipped with A.M.I. seats model numbers 716-1 through 716-22, and 865-1 through 865-9 and 865-11. The requirement stipulates that the pilot seat frame assembly P/N 865J10005-1 must be reinforced by installing A.M.I. Industries Inc.'s seat frame brace kit P/N 865K90000-1, in accordance with A.M.I. Industries Inc.'s service bulletin No. 25-10-865-01 dated 31 January 1983. The directive references FAA AD 83-21-06 and mandates compliance unless the reinforcement was already carried out before 30 April 1984. This directive arises from an incident where the failure of the pilot's seats during an emergency landing resulted in injuries to the occupants, with subsequent tests confirming the seat frame's failure at loads below the required 9g forward. The application of these regulations is overseen by the Civil Aviation Safety Authority and extends across the Commonwealth of Australia, ensuring adherence to the specified safety measures for the specified aircraft models.

Key Provisions

The Civil Aviation Regulations 1998, particularly in Part 39 - 105, mandate specific safety measures for the Beechcraft 90 and 65-90 (King Air) series aeroplanes, encapsulated in Airworthiness Directive (AD) AD/BEECH 90/72 (Section 1/84). This directive applies to all models 65/90 equipped with A.M.I. seats of specified models (Section 1/84). The core requirement of this directive is the reinforcement of the pilot seat frame assembly, identified by part number 865J10005-1. To achieve this, the installation of an A.M.I. Industries Inc. seat frame brace kit, part number 865K90000-1, must be carried out in accordance with A.M.I. Industries Inc. service bulletin No. 25-10-865-01, dated 31 January 1983. This requirement is underscored by a documented case where the failure of pilot seats during an emergency landing resulted in occupant injuries, verified by subsequent T.S.O. tests showing seat frame failure at loads below the required 9g forward tolerance (Section 1/84). Entities governed by this Act must ensure that the specified models of Beechcraft 90 and 65-90 aeroplanes are compliant with the AD AD/BEECH 90/72 directive. This includes verifying that the appropriate seat reinforcement measures are implemented before any flight operations. Operators of these aircraft must adhere strictly to the instructions provided by A.M.I. Industries Inc. and ensure that the seat frame brace kit is correctly installed as per the service bulletin (Section 1/84). Any modifications or reinforcements must be completed unless the required seat reinforcement has already been accomplished before the directive's effective date of 30 April 1984. Failure to comply with the requirements of AD AD/BEECH 90/72 can result in serious consequences. The regulations stipulate that non-compliance with the seat reinforcement directive could lead to significant safety risks, potentially endangering the lives of occupants during flight. The potential legal repercussions include enforcement actions by the Civil Aviation Safety Authority, which could involve substantial fines or other penalties as prescribed by the Civil Aviation Act 1988. The exact penalties are not explicitly stated in the directive but are subject to the broader regulatory framework that governs civil aviation safety in Australia.