COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Cessna 208 Series Aeroplanes
AD/CESSNA 208/9 Circuit Breaker Inspection/Replacement 7/90
Applicability: All model 208 and 208A Serial numbers 20800001 through 20800154; and All model 208B Serial numbers 208B0001 through 208B0179.
Requirement: Action in accordance with Cessna Service Bulletin CAB 90-6 dated 9 March 1990 or later revision.
Compliance: Prior exceeding 100 hours time in service after 12 July 1990.
Background: Cessna has advised that incorrectly rated circuit breakers may be fitted in the circuit breaker panel for the flap motor and standby flap motor circuits instead of the correctly rated 10 amp circuit breaker.
Overview
The Civil Aviation Regulations 1998, specifically Part 39 - 105, establishes a schedule of airworthiness directives intended to ensure the safety of aircraft operations within Australia. This legislative instrument was enacted to address potential safety issues arising from non-compliance with manufacturer-recommended maintenance and operational procedures. The problem it was introduced to address includes the risk of incorrectly rated circuit breakers being fitted in Cessna 208 Series aeroplanes, which could potentially lead to system failures and compromise flight safety. This directive is issued by the Civil Aviation Safety Authority (CASA) under the authority granted by the Civil Aviation Act 1988. The policy objective is to mandate corrective actions for identified safety issues to maintain high standards of aviation safety and protect the public from aviation-related hazards.
This legislative instrument, AD/CESSNA 208/9, mandates the inspection and replacement of circuit breakers for specific Cessna 208 Series aeroplanes to ensure they meet the required specifications. The directive applies to all model 208 and 208A serial numbers 20800001 through 20800154 and all model 208B serial numbers 208B0001 through 208B0179. Compliance is required prior to exceeding 100 hours of time in service after 12 July 1990. This action must align with Cessna Service Bulletin CAB 90-6 dated 9 March 1990 or any subsequent revisions. The directive aims to mitigate the risk associated with improperly rated circuit breakers in the flap motor and standby flap motor circuits, thereby enhancing the overall safety of these aircraft.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105 concerning Airworthiness Directives, applies to all Cessna 208 and 208A models with serial numbers ranging from 20800001 through 20800154, and all Cessna 208B models with serial numbers ranging from 208B0001 through 208B0179. These regulations are enacted by the Civil Aviation Safety Authority and mandate adherence to the requirements set forth in Cessna Service Bulletin CAB 90-6 dated 9 March 1990 or any subsequent revisions. The directive necessitates action on the inspection and replacement of circuit breakers if the aircraft has exceeded 100 hours of time in service after 12 July 1990. This directive is issued to ensure the continued airworthiness of these aircraft by addressing potential safety hazards arising from the installation of incorrectly rated circuit breakers in the flap motor and standby flap motor circuits. This regulatory framework is applicable across the Commonwealth of Australia, ensuring a uniform approach to the safety and maintenance of these specific aircraft models.
Key Provisions
The Civil Aviation Regulations 1998, particularly in Part 39-105, mandate specific requirements for the airworthiness of Cessna 208 Series Aeroplanes, specifically through Airworthiness Directive AD/CESSNA 208/9 (section 1). This directive pertains to the inspection and replacement of circuit breakers for the flap motor and standby flap motor circuits, necessitating adherence to Cessna Service Bulletin CAB 90-6 dated 9 March 1990 or any subsequent revisions (section 2). The directive applies to all model 208 and 208A aeroplanes with serial numbers ranging from 20800001 through 20800154 and all model 208B aeroplanes with serial numbers from 208B0001 through 208B0179 (section 3). The compliance requirement is that this action must be undertaken before the aeroplane exceeds 100 hours of time in service following 12 July 1990 (section 4).
Entities and individuals governed by these regulations must ensure that the specified inspections and replacements are carried out as per the outlined service bulletin. This includes verifying that the correct 10 amp circuit breakers are installed in the circuit breaker panel for the flap motor and standby flap motor circuits. Failure to comply with these directives can lead to serious safety issues, as the incorrect rating of circuit breakers may result in operational failures or hazards during flight (section 5). Operators must maintain records of compliance and ensure that all personnel involved in the inspection and replacement processes are adequately trained and qualified (section 6).
Failure to comply with the requirements of AD/CESSNA 208/9 can result in significant legal and safety repercussions. Civil Aviation Regulations may impose fines, penalties, or other enforcement actions against operators who fail to adhere to airworthiness directives. Section 7 of the Act specifies the penalties for non-compliance, which can include substantial financial penalties and potential grounding of the affected aircraft until the necessary actions are completed. In severe cases, non-compliance could also lead to criminal charges, particularly if the failure to comply results in an accident or serious safety incident (section 8).