AD/GAF-N22/13 Amdt 1 - Fuel Crossfeed Selector Knob - Inspection and Replacement

Overview

The Civil Aviation Regulations 1998, specifically PART 39 - 105, establish a framework for ensuring the safety of civil aviation operations in Australia. Enacted by the Australian Parliament, these regulations serve to maintain and enhance the safety standards of aircraft and related operations. The regulation addresses the need to ensure that aircraft are maintained in a condition that guarantees their airworthiness, thereby preventing accidents and incidents within civil aviation. One such measure introduced under this legislation is AD/GAF-N22/13 Amendment 1, which pertains to the inspection and replacement of the fuel crossfeed selector knob for GAF N22 and N22B series aeroplanes. This amendment was introduced to rectify issues identified in earlier service bulletins, GAF Alert SB No. N22.28.4 and GAF SB No. N22.28.5, to ensure that these aircraft meet the required safety standards before further flight. The policy objective behind these amendments is to mitigate safety risks associated with the fuel system, thereby enhancing overall aircraft reliability and safety.

Scope and Application

The Civil Aviation Regulations 1998, as detailed in Part 39 - 105, pertain specifically to the airworthiness directives concerning GAF N22 and N24 series aeroplanes, with a particular focus on Airworthiness Directive AD/GAF-N22/13 Amendment 1, which addresses the inspection and replacement of the fuel crossfeed selector knob. This regulation applies to all models of the N22 and N22B aircraft series. The directive is implemented to ensure that these aircraft meet specific safety standards, as outlined in the referenced documents GAF Alert SB No. N22.28.4 and GAF SB No. N22.28.5. The compliance requirements mandate that inspections and necessary replacements of the fuel crossfeed selector knob must occur before further flight after 7 February 1977 and subsequently at intervals not exceeding 100 hours of time in service until the incorporation of GAF SB No. N22.28.5, which itself must be completed before 1 November 1977. This regulation extends throughout the Commonwealth of Australia, thereby impacting all relevant operators within the national jurisdiction. The scope of the legislation is comprehensive, targeting the maintenance and safety protocols of these aircraft to prevent potential operational hazards.

Key Provisions

The main operative sections of the Civil Aviation Regulations 1998, specifically Part 39 - 105 Civil Aviation Safety Authority Schedule of Airworthiness Directives for GAF N22 and N24 Series Aeroplanes, detail critical requirements for maintaining the airworthiness of these aircraft models. Section 1 of AD/GAF-N22/13 Amendment 1 provides that inspections and replacements of the fuel crossfeed selector knob are mandatory. This applies to all N22 and N22B models and mandates compliance with specific service bulletins issued by GAF. According to section 2, for GAF Alert Service Bulletin (SB) No. N22.28.4, the inspection and replacement must be completed before further flight after 7 February 1977 and then at intervals not exceeding 100 hours of time in service until GAF SB No. N22.28.5 is incorporated. For GAF SB No. N22.28.5, the compliance deadline is set before 1 November 1977. The obligations and requirements imposed by this Act are straightforward but crucial for ensuring the safety and airworthiness of the aircraft. Operators of the N22 and N22B series aeroplanes must adhere to the stipulated inspection and replacement intervals for the fuel crossfeed selector knob as detailed in the referenced GAF service bulletins. The regulations require operators to conduct these actions meticulously and keep thorough records to demonstrate compliance. Additionally, operators must ensure that all maintenance personnel are adequately trained to perform these tasks correctly and within the specified timelines. In terms of consequences for non-compliance, the Act does not explicitly state offences, penalties, or civil/criminal consequences within the provided text. However, failure to comply with Airworthiness Directives can result in severe safety risks, potentially leading to enforcement actions by the Civil Aviation Safety Authority (CASA). Such actions could include directives to cease operations of the non-compliant aircraft, fines, and other regulatory penalties. The exact penalties for non-compliance with airworthiness directives are typically detailed in other sections of the Civil Aviation Regulations or in CASA's enforcement guidelines, but they can include substantial financial penalties and potential criminal charges for serious violations that result in accidents or significant safety risks.