COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Douglas DC4 Series Aeroplanes
AD/DC4/28 Fire Protection Modifications NK
Applicability: All models.
Requirement: 1. Modify the aeroplane to provide a level of protection against fire in flight equivalent to that called for in Section 101.1.3.1 of Air Navigation Orders.
2. Incorporation of all Douglas SBs listed in para. 3 of this Order together with the incorporation of the modifications detailed in para. 4 of this Order constitutes an acceptable means of meeting the above requirements.
3. DC4 Service Bulletins:
No. Title
47 Install Firewall-Cabin Forward Bulkhead, Ceiling Panels and Reworkable Floor Panel.
49 Oil Cooler Fairing and Inner Ring Seal.
55 Replace Micarta Fairleads for Engine Controls through Nacelle Firewall and Inner Ring.
61 Replacement of Generator Current Control Relay.
64 Installation of Cabin and Nose Heater Fire Extinguisher and Fuel System.
65 Firewall Junction Box Steel Cover Plate attached to Firewall.
66 Fire Prevention - Engine Section. Piping and Fitting Revision.
Note: This Bulletin calls for the replacement of existing electrical disconnect plugs on the fire- wall by stainless steel plugs. It will be sufficient for the purpose of this Order if only that component of the plug actually attached to the firewall be made of fire-proof material.
67 Addition of Fire Extinguisher Lines Aft of Firewall and CO2 Bottles in Nose Wheel Well.
68 Installation of “Y” Outlet Stiffener Flange on Exhaust Collector Rings.
70 Installation - Generator Blast Tube Shut-off System.
85 Revision of Engine Section Surface De-icer Pressure Line-Vacuum Pump to Separator.
In addition to the requirements of para. 3 of this Order, modify aeroplanes as follows:-
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
4.1. Fit fireproof seals around the cowl flap jack shafts where they pass through the fire seal baffles.
4.2. Seal with fireproof material all holes and gaps in the fire seal baffles.
4.3. Seal with fireproof material the gaps around the engine integral oil sump lines at the bottom of the fire seal baffles.
4.4. Seal with fireproof material the gaps between the bottom of the fire seal baffles and inner diaphragms in the area of the engine integral sump lines.
4.5. Using fireproof material, seal the fire seal baffles around the engine crankcase bosses, including the two bosses used for magneto vent line passage.
4.6. Fit fireproof seals over holes in inner diaphragm cup shrouds around the pre- heat controls.
4.7. Provide shut-off means in propeller feathering lines in those installations which utilise the combination starter and feathering pump unit.
4.8. Install an approved fire detector system in Zone 1.
4.9. Install an approved fire detector system in Zone 2 and approved fire detectors aft of the firewall in nacelle Zone 3. OR
2. ANO 105.1.16.2.5.27, Issue 2.
Overview
The Civil Aviation Regulations 1998, under Part 39 - 105, was enacted to ensure the safety and airworthiness of aircraft operating in Australian airspace. This legislation aims to address the need for stringent safety measures, particularly in relation to fire protection in aircraft. The Civil Aviation Safety Authority (CASA) is the enacting body responsible for regulating and ensuring compliance with these safety standards. The policy objective is to enhance the safety of civil aviation by mandating specific modifications and improvements to aircraft, particularly focusing on fire prevention and protection systems. One such directive is the Airworthiness Directive AD/DC4/28, which pertains to the Douglas DC4 series aeroplanes, requiring specific fire protection modifications to ensure a level of protection equivalent to that stipulated in the Air Navigation Orders. These modifications are designed to mitigate the risk of in-flight fires and ensure that aircraft meet the highest safety standards.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105 Civil Aviation Safety Authority Schedule of Airworthiness Directives, mandates modifications for the Douglas DC4 series aeroplanes to enhance fire protection measures during flight. This directive applies to all models of the Douglas DC4 series aeroplanes, requiring modifications to achieve a level of fire protection equivalent to that outlined in Section 101.1.3.1 of the Air Navigation Orders. The modifications include the incorporation of specific Service Bulletins and additional fireproofing measures such as sealing various parts with fireproof materials and installing approved fire detection systems in designated zones. These requirements are to be met in accordance with the detailed modifications specified in the Airworthiness Directive AD/DC4/28. The scope of this legislation is limited to civil aviation and aeroplanes within the Commonwealth of Australia, ensuring compliance with national safety standards.
Additionally, the Act extends its application through subordinate instruments, which may include further detailed specifications or updates to the fire protection requirements. Exemptions or exclusions from this directive are not explicitly stated in the provided text, implying that all applicable aeroplanes must adhere to the outlined safety measures. The geographic reach of this legislation is national, applying across all states and territories within Australia, and is enforced by the Civil Aviation Safety Authority.
Key Provisions
The Civil Aviation Regulations 1998, Part 39 - 105 Civil Aviation Safety Authority Schedule of Airworthiness Directives, specifically AD/DC4/28, outlines the fire protection modifications required for Douglas DC4 Series aeroplanes to ensure compliance with safety standards. The main sections of this directive (Sections 1 to 4) mandate specific modifications to the aeroplane to provide a level of fire protection equivalent to that specified in Section 101.1.3.1 of the Air Navigation Orders. The directive applies to all models of the Douglas DC4 Series aeroplanes.
The modifications required include fitting a firewall-cabin forward bulkhead, ceiling panels, and reworkable floor panels, as detailed in Douglas Service Bulletin No. 47, and installing fireproof seals around various parts of the aeroplane to prevent fire spread. This involves sealing cowl flap jack shafts, holes and gaps in fire seal baffles, gaps around engine integral oil sump lines, and gaps between the bottom of the fire seal baffles and inner diaphragms. The directive also mandates the installation of fireproof seals around engine crankcase bosses and over holes in inner diaphragm cup shrouds around the pre-heat controls. Furthermore, the aeroplane must be equipped with an approved fire detector system in Zone 1 and, optionally, in Zone 2 and nacelle Zone 3.
The obligations imposed on parties governed by this Act include ensuring that all specified modifications and seals are implemented correctly and in accordance with the outlined requirements. This entails adhering to the detailed modifications listed in Douglas Service Bulletins No. 47 to 85, which include the installation of fire extinguisher lines, CO2 bottles, and a generator blast tube shut-off system, among other modifications. Failure to comply with these requirements could lead to non-compliance with the Air Navigation Orders and potential safety risks.
Any failure to adhere to the requirements stipulated in AD/DC4/28 may result in civil or criminal consequences. While specific penalties are not detailed within the text, non-compliance with airworthiness directives generally can result in severe penalties, including fines, aircraft grounding, or even the suspension or revocation of air operator certificates. The exact penalties would be determined by the Civil Aviation Safety Authority based on the severity and nature of the non-compliance.