AD/B737/77 Amdt 1 - Pilot and Co-Pilot Seats

Overview

The Civil Aviation Regulations 1998, as amended by the Civil Aviation (Airworthiness) Regulations 1998, address the need for stringent safety measures in the aviation industry. This legislation was enacted to ensure that aircraft, including the Boeing 737 series, meet specified airworthiness standards. Part 39 of these regulations includes airworthiness directives that are critical for maintaining the safety of aircraft operations. The directive concerning Boeing 737 series aeroplanes, specifically AD/B737/77 Amendment 1, was introduced to address issues with the pilot and co-pilot seats, ensuring they comply with technical requirements. The objective is to mitigate risks associated with seat malfunctions, which could compromise the safety of flight operations. This directive was enacted by the Civil Aviation Safety Authority in response to specific safety concerns raised by the Federal Aviation Administration, aiming to ensure that affected aircraft are compliant before a specified deadline.

Scope and Application

The Civil Aviation Regulations 1998, specifically PART 39 - 105, mandates the application of the Civil Aviation Safety Authority's schedule of airworthiness directives, with this particular directive focusing on Boeing 737 series aeroplanes. The directive is applicable to aircraft equipped with IPECO Model 093 pilot and co-pilot seats, specifically those with seat serial numbers up to and including 21121. The directive requires compliance with the technical requirements outlined in FAA AD 97-19-03 Amdt 39- 10123, addressing issues such as the failure of seats to lock horizontally due to the tracklock pin detaching from its housing and obstructing the mechanism, which could potentially lead to the inability of the pilot to control the aircraft. The directive was issued in response to reports of horizontal locking failures and other defects in previously inspected aircraft seats, necessitating a re-inspection as per the FAA's amended directive. Compliance with this directive must be achieved before 4 March 1998, with the directive becoming effective on 4 December 1997. The scope of the directive is confined to specific models and seat serial numbers, ensuring targeted safety measures are implemented where necessary.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, outlines the Civil Aviation Safety Authority (CASA) schedule of airworthiness directives, including AD/B737/77 Amendment 1 concerning Boeing 737 Series Aeroplanes. This directive (Part 39 - 105) applies to Model 737 series aircraft equipped with IPECO Model 093 pilot and co-pilot seats with serial numbers up to and including 21121 (Section 1). The directive mandates compliance with the technical requirements of FAA AD 97-19-03 Amendment 39 - 10123, which addresses the issue of pilot seats failing to lock horizontally due to a detaching tracklock pin that can wedge in the mechanism (Section 2). Compliance is required before 4 March 1998, and the directive became effective on 4 December 1997 (Section 3). The obligations imposed by this airworthiness directive include a thorough inspection and, if necessary, modification of the specified pilot and co-pilot seats on Boeing 737 series aircraft. Operators must ensure that these seats meet the technical requirements set out in the FAA AD 97-19-03 Amendment 39 - 10123, specifically addressing the potential failure of the horizontal locking mechanism (Section 4). Additionally, operators should refer to IPECO Service Bulletins A001-25-74 Issue 2 and A001-25-92 Issue 1 for further guidance on the required actions (Section 5). Failure to comply with this airworthiness directive can result in serious consequences. Non-compliance could lead to the inability of the pilot to control the aircraft, posing a significant risk to flight safety (Section 6). Under the Civil Aviation Act 1988, operators found in breach of airworthiness directives can face both civil and criminal penalties. Civil penalties may include fines up to $21,000 for a corporation and $4,200 for an individual, while criminal penalties can result in imprisonment for up to five years or both (Section 7). The severity of these penalties underscores the importance of strict adherence to the requirements set forth in the directive.