AD/CESSNA 337/20 - Pre-Certification Requirements - Modification

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Legislation au F2006B08240 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 337 Series Aeroplanes

 

AD/CESSNA 337/20 Pre-Certification Requirements - Modification 12/74

Applicability: All model T337G.

 

Requirement: Modify the aircraft in accordance with the requirements of ANO 101.22 in respect of the following:

 

  1. Install a placard in the cabin specifying the periods during which smoking is prohibited.

 

2.    Install a placard adjacent to the aircraft external electrical power connection indicating system voltage.

 

3.    Install and identify:

 

(a)     fuelling equipment bonding points at each fuel filling point,

 

(b)     external earthing points for the attachment of ground connection on each main undercarriage assembly or on the nose gear.

 

4.    Replace the flexible hose assemblies listed below with assemblies meeting the fire resistance standards of FAA TSO C53B Type C or D or render them fire resistant to that standard by fitting an approved fire sleeve:

 

Fuel Pump to Fuel Control Unit P/No. 111417-4-0160 Fuel Control Unit to Fuel Manifold P/No. 111417-4-0160

Main Fuel Line to Engine Driven Pump - Front Engine P/No. S1167-6-0450 - Rear Engine P/No. S1167-6-0610

 

Propeller Unfeathering Accumulator Line - Front Engine P/No. S1167-6-0245

- Rear Engine P/No. S1167-6-0100 Compliance: Before issue of a Certificate of Airworthiness.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, were established to ensure the safety and efficiency of civil aviation within the country. These regulations, specifically Part 39 - 105, focus on the Civil Aviation Safety Authority's (CASA) schedule of airworthiness directives for various aircraft, including the Cessna 337 Series Aeroplanes. This legislative instrument aims to address specific safety concerns and ensure compliance with necessary modifications before aircraft are issued a Certificate of Airworthiness. The policy objective is to enhance aviation safety by mandating specific modifications to aircraft to meet stringent safety standards. For the Cessna 337 Series, this includes placard installations for smoking restrictions and system voltage, as well as the installation of bonding and earthing points, and the replacement or modification of flexible hose assemblies to meet fire resistance standards.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105 concerning the Civil Aviation Safety Authority's Schedule of Airworthiness Directives for the Cessna 337 Series Aeroplanes, applies to all model T337G aircraft. The Act mandates several modifications to ensure compliance with safety standards before a Certificate of Airworthiness is issued. These modifications include the installation of placards to indicate smoking prohibition periods and system voltage, as well as the installation of specific bonding and earthing points for fuel systems and main undercarriage assemblies. Additionally, it requires the replacement or modification of certain flexible hose assemblies to meet stringent fire resistance standards, ensuring the aircraft's operational safety. The regulations extend across the Commonwealth of Australia, overseen by the Civil Aviation Safety Authority, and these requirements must be met to maintain airworthiness certification.

Key Provisions

The main operative sections of the Civil Aviation Regulations 1998, Part 39 - 105, in relation to Cessna 337 Series Aeroplanes, detail specific modifications required to ensure the aircraft meets airworthiness standards. Section 12/74 specifies that all model T337G aircraft must comply with these modifications before a Certificate of Airworthiness is issued (section 12/74). These modifications include installing a placard in the cabin indicating periods during which smoking is prohibited (section 2), placing a placard adjacent to the external electrical power connection showing system voltage (section 3), and installing bonding and earthing points (section 3(a) and 3(b)). Additionally, certain flexible hose assemblies must be replaced or rendered fire resistant to meet FAA standards (section 4). The obligations imposed by these sections require aircraft owners and operators to ensure that the specified modifications are completed before the aircraft is allowed to fly commercially. This includes the installation of necessary placards and ensuring that all fuel-related equipment meets fire resistance standards. These modifications are intended to enhance safety and compliance with aviation safety regulations. Failure to comply with these requirements may result in serious consequences. If an aircraft is found not to meet the specified airworthiness directives, it may not be granted a Certificate of Airworthiness. This means the aircraft cannot legally operate until all required modifications are made. Furthermore, operating a non-compliant aircraft could lead to enforcement actions by the Civil Aviation Safety Authority, potentially including fines or other penalties as stipulated by relevant legislation. The precise nature and extent of penalties are governed by the broader civil aviation laws and may vary depending on the severity and impact of the non-compliance.

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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.