AIRWORTHINESS DIRECTIVE
On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/GENERAL/76 Amdt 1 and issues the following AD under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.
Aircraft - General
AD/GENERAL/76
Amdt 2
Class D Cargo Compartments Re-classification
12/2004
DM
Applicability: All aeroplanes used in commercial operations under CAR(1988) 206 (1) c, above 5700 kgs (12,500lbs) maximum take off weight (type certificated after 1 Jan 1958), and a Certificate of Airworthiness in the Transport category, with class D category cargo compartments (as defined by 14 CFR Part 25.857 at Amdt 25-60).
Requirement: 1. All applicable aeroplane class D cargo compartments are to be upgraded to meet either:
- Class C cargo compartment design standards for passenger carrying operations,
Or
b. Class E cargo compartment design standards for freight operations.
In meeting this requirement, operators are to ensure that the modifications do not affect detrimentally the operational capability of the aeroplane in terms of extended range operations. The design standard of 14 CFR Part 25.858 is the design standard to be met by modifications incorporated under this directive.
Operating standard CFR 121.314 is to be followed until a harmonised Australian operating standard is issued.
2. Until such time as all Class D compartments in the aeroplane have been converted or retrofitted with appropriate detection and suppression systems, each certificate of registration holder must submit progress reports, detailing the estimated date of compliance with Requirement 1 of this Directive, to CASA, Section Head, Systems on FAX 02 6217 1914.
Note: FAA Final Rule Docket No 28937, Amdt 25-93 and 121-269 on changes to CFR Parts 25 and 121 refers.
Compliance: For Requirement 1: Unless previously accomplished, not later than 31 January 2005.
For Requirement 2: At intervals not to exceed one month from the effective date of this Directive until such time that the aeroplanes have been modified in accordance with Requirement 1 of this Directive.
Aircraft - General
AD/GENERAL/76 Amdt 2 (continued)
This Amendment becomes effective on 6 October 2004.
Background: Investigations into several catastrophic cargo compartment fires in the United States has concluded that class D cargo compartments were contributory to the loss of aeroplanes as there was no system to detect the fire until the cargo compartment had been breached by the fire. This directive retrospectively introduces the new design requirements to upgrade class D cargo compartments on applicable aeroplanes.
This amendment amends the compliance date in response to delays in obtaining parts to carry out the upgrades required by this Directive. This amendment now also includes an additional requirement to report the status of aeroplanes that are not in compliance with Requirement 1 of this Directive to CASA.
Amendment 1 of this Directive became effective on 8 August 2002.
James Coyne
Delegate of the Civil Aviation Safety Authority 29 September 2004
The above AD is notified in the Commonwealth of Australia Gazette on 6 October 2004.