AD/LEARJET 35/5 - Angle of Attack Indicator - Modification

Overview

The Civil Aviation Regulations 1998, amended through Legislative Instrument F2006B11120, address safety concerns related to the operation of Gates Learjet 35 and 36 series aeroplanes. Enacted by the Australian Government, this regulation specifically targets the modification of angle of attack indicators on certain Learjet models to enhance flight safety. The policy objective is to ensure that aircraft equipped with these indicators are modified to mitigate risks associated with angle of attack, thereby improving overall aviation safety standards. The regulation applies to all model 35 and 36 Learjets with specified serial numbers that do not already incorporate the reduced speed system kit AAK 76-4, mandating compliance with the Gates Learjet Kit AMK 76-8 forthwith.

Scope and Application

The Civil Aviation Regulations 1998, as amended, apply to all persons involved in the operation, maintenance, and airworthiness certification of Gates Learjet 35 and 36 Series Aeroplanes within the Commonwealth of Australia. Specifically, Airworthiness Directive AD/LEARJET 35/5 pertains to the modification of the angle of attack indicator for certain serial numbers of these aircraft models. This directive applies to aircraft with serial numbers ranging from 35-002 to 35-061 and 36-002 to 36-017, provided they do not already incorporate the reduced speed system kit AAK 76-4. Compliance with this directive is required immediately, necessitating the installation of the Gates Learjet Kit AMK 76-8 to address the specified safety concerns. The scope of this regulation is enforced by the Civil Aviation Safety Authority, ensuring adherence to the specified safety standards throughout the aviation industry within Australia.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, addresses the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives for Gates Learjet 35 and 36 series aeroplanes. Within this, AD/LEARJET 35/5 pertains to the modification of the Angle of Attack (AoA) indicator. According to section 7/77, this directive applies to all model 35 and 36 aircraft with serial numbers (S/Nos.) ranging from 35-002 to 35-061 and 36-002 to 36-017, excluding those that already incorporate the reduced speed system kit AAK 76-4. The compliance requirement is mandated to be fulfilled forthwith, as stipulated in the directive. The obligations imposed by this regulation are clear and direct. Operators of the specified Gates Learjet 35 and 36 series aeroplanes must ensure that the AoA indicator is modified using the Gates Learjet Kit AMK 76-8. This modification is critical to maintaining airworthiness standards and ensuring safe operational conditions. Operators must verify that their aircraft fall within the specified serial numbers and do not already have the reduced speed system kit AAK 76-4 installed. Failure to comply with these directives can result in significant safety risks and potential regulatory action. Breaches of the Civil Aviation Regulations 1998, particularly non-compliance with airworthiness directives, can lead to serious consequences. The regulations are enforced by CASA, which has the authority to take civil and criminal actions against non-compliant entities. Civil penalties may include fines, enforcement notices, and the suspension or revocation of air operator certificates. Criminal penalties can result in substantial fines and imprisonment for individuals responsible for the non-compliance, underscoring the seriousness with which CASA treats adherence to these safety directives. The maximum penalties are determined by the severity of the breach and the potential risk posed to aviation safety.