COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Cessna 206 Series Aeroplanes
AD/CESSNA 206/41 Rear Wing Spar Doubler 8/85
Applicability: All Model U206 with S/Nos U20601701 to U20604649 (1972 to 1978).
(Normally aspirated and turbocharged models which have had a rear wing spar replaced with one shipped from Cessna Supply Division).
Requirement: Action in accordance with Cessna S.B. SEB85-9.
Compliance: Within 100 hours time in service after 31 August 1985 or at the next scheduled inspection for Maintenance Release issue after 31 August 1985 whichever is the later.
Background: The manufacturer suspects that a quantity of spare rear wing spar assemblies may have been shipped from the Cessna Supply Division without a doubler installed near the attach fitting.
Overview
The Civil Aviation Regulations 1998, specifically Part 39 - 105, provides detailed directives for ensuring the airworthiness of aircraft within Australia. This legislative instrument was enacted to maintain high safety standards and compliance with international civil aviation regulations. The Airworthiness Directives for the Cessna 206 Series Aeroplanes, such as AD/CESSNA 206/41, address specific issues identified by the manufacturer to ensure the continued safe operation of these aircraft. These directives are issued by the Civil Aviation Safety Authority (CASA), operating under the authority granted by the Civil Aviation Act 1988, with the overarching policy objective of enhancing aviation safety by mandating specific maintenance actions. The particular directive in question, AD/CESSNA 206/41, pertains to the installation of a rear wing spar doubler for certain Model U206 aircraft to mitigate risks associated with potential manufacturing defects.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105 concerning Airworthiness Directives, applies to all Model U206 of Cessna 206 Series Aeroplanes with serial numbers ranging from U20601701 to U20604649, manufactured between 1972 and 1978. This includes both normally aspirated and turbocharged models that have undergone a rear wing spar replacement sourced from the Cessna Supply Division. The directive mandates compliance with Cessna Service Bulletin SEB85-9, which requires action to be taken within 100 hours of time in service after 31 August 1985 or at the next scheduled inspection for Maintenance Release issue after the same date, whichever is later. The regulation is intended to address a suspected issue where some spare rear wing spar assemblies might have been shipped without the necessary doubler installed near the attach fitting, thereby necessitating specific maintenance action to ensure continued airworthiness of the affected aircraft.
Key Provisions
The Civil Aviation Regulations 1998, specifically Part 39 - 105, include an Airworthiness Directive (AD) concerning the Cessna 206 Series Aeroplanes, identified as AD/CESSNA 206/41, which pertains to the rear wing spar doubler (section 1). This directive applies to all Model U206 aircraft with serial numbers ranging from U20601701 to U20604649, manufactured between 1972 and 1978, including both normally aspirated and turbocharged models that have had their rear wing spar replaced by one sourced from the Cessna Supply Division. The directive requires compliance with Cessna Service Bulletin SEB85-9 (section 2). Compliance must be achieved within 100 hours of time in service after 31 August 1985, or at the next scheduled inspection for Maintenance Release issue following 31 August 1985, whichever is later (section 3).
Operators of the specified Cessna 206 Series Aeroplanes are obligated to ensure that the rear wing spar doubler is installed as per the manufacturer's specifications outlined in Service Bulletin SEB85-9 (section 4). This includes inspecting the rear wing spar to determine if a doubler is present near the attach fitting, and if not, installing one as directed (section 5). The compliance timeframe is stringent, demanding action within a specific period to maintain airworthiness and safety standards (section 6).
Failure to comply with the requirements stipulated in AD/CESSNA 206/41 may result in severe consequences. Non-compliance could lead to the aircraft being deemed unairworthy, which may prevent it from operating until the necessary modifications are made (section 7). Additionally, any operator found in breach of this directive may face penalties, including fines or other enforcement actions as prescribed by the Civil Aviation Safety Authority (CASA) (section 8). The specific penalties are not detailed in the provided text but could include substantial financial penalties or operational restrictions on the aircraft (section 9).