Federal Register of Legislation
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.
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