COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Aerospatiale GY 80 (Horizon) Series Aeroplanes
AD/GY80/7 Propeller Governor Oil Inlet Union - Replacement 6/79
Applicability: All GY80 aircraft fitted with variable pitch Hartzell propeller. Document: Aerospatiale Horizon SB No. 37.
Compliance: Within 100 hours time in service after 31 July 1979.
Background: This Directive is issued as the result of overseas notification of oil loss caused by failure of the crankcase mounted union.
Overview
The Civil Aviation Regulations 1998, enacted by the Commonwealth of Australia, are a comprehensive set of rules governing all aspects of civil aviation within Australian airspace. One particular regulation, AD/GY80/7, was introduced to address the problem of oil loss in Aerospatiale GY 80 (Horizon) series aeroplanes due to failures in the crankcase-mounted union of the propeller governor oil inlet. This legislation was issued by the Civil Aviation Safety Authority in response to an overseas notification and is aimed at ensuring the continued airworthiness of the affected aircraft. The policy objective is to mandate a compliance timeline, requiring all applicable GY80 aircraft to undergo the specified replacement of the propeller governor oil inlet union within 100 hours of time in service after 31 July 1979, thereby mitigating the risk of oil loss and associated safety hazards.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105, mandates that all Aerospatiale GY 80 (Horizon) Series Aeroplanes fitted with a variable pitch Hartzell propeller must comply with Airworthiness Directive (AD) GY80/7, which pertains to the replacement of the propeller governor oil inlet union. This directive applies to all aircraft of the specified series that meet the stated configuration, requiring compliance within 100 hours of time in service following 31 July 1979. The directive stems from an overseas notification regarding the failure of the crankcase mounted union, leading to oil loss. This regulation extends to the entire Commonwealth of Australia, overseen by the Civil Aviation Safety Authority (CASA). The directive does not specify any exclusions or exemptions, and compliance is mandatory for all affected aircraft. The authority to extend or restrict the application of this directive may be exercised through subordinate instruments, although no such measures are detailed in the provided text.
Key Provisions
The Civil Aviation Regulations 1998, specifically Part 39, section 105, contains the Airworthiness Directives, which are legally enforceable orders issued by the Civil Aviation Safety Authority (CASA) to ensure the continued airworthiness of aircraft. One such directive, AD/GY80/7, pertains to Aerospatiale GY 80 (Horizon) series aeroplanes and mandates the replacement of the propeller governor oil inlet union. This directive applies to all GY80 aircraft fitted with variable pitch Hartzell propellers (section 6/79). It is based on Aerospatiale Horizon Service Bulletin No. 37, which was issued due to incidents of oil loss caused by the failure of the crankcase-mounted union. Compliance with this directive requires that the specified maintenance action be completed within 100 hours of time in service after 31 July 1979.
The obligations under AD/GY80/7 are clear and specific. Operators of Aerospatiale GY80 aircraft with variable pitch Hartzell propellers must ensure that the propeller governor oil inlet union is replaced according to the timeline and specifications outlined in the directive. This involves adhering to the maintenance procedures and technical instructions provided by Aerospatiale, as referenced in the Horizon Service Bulletin No. 37. The directive necessitates that this maintenance task be carried out by appropriately qualified and licensed personnel to guarantee that the replacement meets the required safety standards and specifications.
Failure to comply with the provisions of AD/GY80/7 can lead to severe consequences. The Civil Aviation Regulations 1998 impose both civil and criminal penalties for non-compliance with airworthiness directives. Civil penalties may include fines, and in more severe cases, aircraft may be grounded until the required maintenance is completed. Criminal penalties may also apply, where individuals or organisations can be prosecuted, potentially resulting in fines or imprisonment. The exact penalties depend on the severity of the non-compliance and the specific circumstances of the breach, but they underscore the critical importance of adhering to these safety directives.