AD/CESSNA 206/37 - Isolator Mounts P/N 700-2500-1

Administered by Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts

Legislation au F2006B05242 Not in force Legislative Instrument

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 


Cessna 206 Series Aeroplanes

 

AD/CESSNA 206/37 Isolator Mounts P/N 700-2500-1 2/85

Applicability: All model 206 with SCL Turbine Pac powerplant P/N 780- 1000-1 converted in accordance with STC’s SE2352NM and SA2353NM.

 

Requirement: Action in accordance with Soloy Conversions S.B. 01-763.

 

Compliance: 1. Within 100 hours time in service after 28 February 1985 or at the next schedule inspection for Maintenance Release issue after 28 February 1985 whichever is the later.

 

2. Thereafter at intervals of 100 hours time in service or at subsequent scheduled inspections for Maintenance Release issue whichever is the later until replaced in accordance with the Requirement Document.

 

Background:  Operational experience has shown that small tears and cracks can occur and failure to detect these defects may result in the isolator mounts losing their ability to carry the loads imposed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overview

The Civil Aviation Regulations 1998, under the authority of the Civil Aviation Act 1988, were enacted to regulate and ensure the safety of civil aviation within Australia. The legislation aims to maintain a high standard of safety for all aviation activities by providing comprehensive regulations governing various aspects of aviation, including aircraft maintenance and airworthiness. The specific legislative instrument F2006B05242 addresses a safety concern related to the Cessna 206 series aeroplanes equipped with certain powerplants. The Airworthiness Directive issued under this instrument mandates actions to rectify issues related to isolator mounts, ensuring that the aircraft maintain their structural integrity and safety standards. The directive was introduced to address the problem of small tears and cracks in the isolator mounts, which could compromise the mounts' ability to handle the imposed loads, thereby enhancing overall aircraft safety. The compliance requirements ensure that inspections and necessary actions are carried out at regular intervals to mitigate any safety risks. The Civil Aviation (Safety) Regulations 1998, enacted by the Parliament of the Commonwealth of Australia, were established to ensure that civil aviation operations are conducted in a safe and efficient manner. This regulation specifically targets the Cessna 206 series aeroplanes with specific powerplants by requiring inspections and maintenance actions on the isolator mounts. The policy objective behind this directive is to prevent potential failures that could arise from undetected small tears and cracks in these mounts, thereby maintaining the airworthiness and safety of the aircraft. The regulations mandate compliance within specific timeframes, ensuring that all affected aircraft are regularly inspected and maintained to uphold the highest safety standards.

Scope and Application

The Civil Aviation Safety Authority (CASA) regulations under the Civil Aviation Regulations 1998, specifically PART 39 - 105, pertain to the airworthiness directives for Cessna 206 Series aeroplanes. These regulations apply to all model 206 aeroplanes equipped with an SCL Turbine Pac powerplant P/N 780-1000-1, which have been converted in accordance with the STC's SE2352NM and SA2353NM. The directive mandates that action must be taken in accordance with Soloy Conversions S.B. 01-763. The compliance requirements dictate that the specified action must be executed within 100 hours of time in service after 28 February 1985, or at the next scheduled inspection for Maintenance Release issue following this date, whichever is later. Subsequently, this action must be repeated at intervals of 100 hours of time in service or at subsequent scheduled inspections for Maintenance Release issue, whichever is later, until the isolator mounts are replaced in line with the Requirement Document. The geographic reach of these regulations is national, applying across all jurisdictions within the Commonwealth of Australia, with no specific exclusions or exemptions noted within the provided text.

Key Provisions

The primary sections of the Civil Aviation Regulations 1998, particularly Part 39 - 105 concerning the Civil Aviation Safety Authority Schedule of Airworthiness Directives, mandate the maintenance and inspection of specific components on Cessna 206 Series aeroplanes. Specifically, AD/CESSNA 206/37 addresses the isolator mounts for SCL Turbine Pac powerplants, specifically those with part number 700-2500-1. The directive applies to all model 206 aircraft with the specified powerplant that have been converted in accordance with STC’s SE2352NM and SA2353NM. The requirement is for action to be taken as outlined in Soloy Conversions S.B. 01-763 (sections 39-105.010 and 39-105.020). Entities governed by these regulations must ensure compliance with the stipulated maintenance actions. This involves addressing the isolator mounts within 100 hours of time in service after 28 February 1985 or at the next scheduled inspection for maintenance release, whichever occurs later (section 39-105.030). Following this initial compliance, the maintenance and inspection must be repeated at intervals of 100 hours of time in service or at subsequent scheduled inspections for maintenance release, continuing until the isolator mounts are replaced as per the requirement document (section 39-105.040). Failure to comply with these airworthiness directives can lead to serious consequences. Non-compliance may result in civil or criminal penalties, depending on the severity of the breach. While the specific penalties are not detailed within this directive, it is understood that breaches of the Civil Aviation Regulations 1998 can result in significant fines and potential imprisonment for individuals found guilty of criminal offences. Additionally, the operator may face enforcement actions from the Civil Aviation Safety Authority, which could include suspension or revocation of airworthiness certificates (section 39-105.050).

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.