AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/AMD 50/30 and issues the following AD under subregulation 39.1 (1) of CAR 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.
AMD Falcon 50 and 900 Series Aeroplanes
AD/AMD 50/30
Amdt 1
Fire Extinguisher Selector Switches 4/2003
DM
Applicability: All Mystère Falcon 900 series aeroplanes.
Requirement: 1. Inspect the safety wires on the fire extinguisher selector switches to ensure all wires comply with NFL 23.321 or MS20995CY15* (or NASM20995CY15*). All wires not complying with these standards must be removed.
* ‘CY’ Copper specification A-A-59551, type “S”, annealed, 0.015 inch.
2. Unless already accomplished in accordance with the original issue of this Directive, install fire extinguisher selector switch copper safety wires that either:
- comply with NFL 23.321 or MS20995CY15 (or NASM20995CY15) standards, or
- are copper having a maximum diameter of 0.4 millimetres and can withstand a rupture strength of less than 45 Newtons.
3. Incorporate Work Card MF900 26-203 temporary revision TC 115 into the Aircraft Maintenance Manual (AMM).
4. If copper safety wires were installed in accordance with Requirement 2.a. reinstall safety wires that comply with the Requirement 1 standards.
Note: DGAC AD 2003-084(B) R1 refers.
Compliance: For Requirement 1 - Remains unchanged as ‘Before further flight after the effective date of the original issue of this Directive’.
For Requirement 2 - Within eight days after the effective date of this Amendment.
For Requirement 3 - Remains unchanged as ‘Within eight days after the effective date of the original issue of this Directive’.
For Requirement 4 - Within three months after the effective date of this Amendment. This Amendment becomes effective on 12 March 2003.
AMD Falcon 50 and 900 Series Aeroplanes
AD/AMD 50/30 Amdt 1 (continued)
Background: The Direction Générale de l’Aviation Civile of France has advised that due to incorrect references on Work Card 26.203 incorrect safety (lock) wire may have been used to safety wire fire extinguisher selector switches following continuity checks between fire extinguishers and the fire control panel. The incorrect safety wire may prevent operation of the selector switches.
The original issue of this Directive required inspection and, if necessary, removal of the safety wires and their replacement with wires that meet certain standards.
Additionally, the AMM was required to be amended.
This Amendment introduces a revised specification for copper wires and provides an alternative method of compliance.
The original issue of the Airworthiness Directive became effective on 14 February 2003.
James Coyne
Delegate of the Civil Aviation Safety Authority 5 March 2003
The above AD is notified in the Commonwealth of Australia Gazette on 12 March 2003.
Overview
The Airworthiness Directive (AD) AD/AMD 50/30 Amdt 1 was issued by the Civil Aviation Safety Authority (CASA) on 5 March 2003, addressing an identified safety issue with Mystère Falcon 900 series aeroplanes. This directive was enacted to rectify the unsafe condition that arose from potentially incorrect references on Work Card 26.203, which may have led to the use of improper safety wires for the fire extinguisher selector switches. The unsafe condition, if left unaddressed, could have resulted in the inability to operate the selector switches, thus compromising the aircraft's safety. The directive requires the inspection and replacement of safety wires, incorporation of a specified work card into the Aircraft Maintenance Manual, and installation of compliant copper safety wires. This AD was introduced to ensure compliance with stringent safety standards and to maintain the airworthiness of the affected aircraft.
Scope and Application
This Airworthiness Directive (AD) applies specifically to all Mystère Falcon 900 series aeroplanes and is issued by the Civil Aviation Safety Authority (CASA) under subregulation 39.1 (1) of the Civil Aviation Regulations 1998. The AD mandates inspections and necessary actions to rectify the unsafe condition identified with the fire extinguisher selector switches, ensuring compliance with the specified standards for safety wires and incorporation of the required work card into the Aircraft Maintenance Manual (AMM). The compliance deadlines outlined in the AD necessitate immediate inspection and replacement of non-compliant safety wires before further flight, with further actions to be completed within a specified period post the directive's amendment date. This AD extends to the entire Commonwealth of Australia, encompassing all relevant aircraft operators and maintenance personnel who must adhere to the outlined requirements to maintain airworthiness standards.
Key Provisions
This Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority (CASA) pertains to Mystère Falcon 900 series aeroplanes. The AD, under subregulation 39.1(1) of CAR 1998, mandates specific actions to address safety concerns with the fire extinguisher selector switches. The directive revokes the previous AD/AMD 50/30 and introduces new requirements as outlined in the updated version, AD/AMD 50/30 Amendment 1, effective 12 March 2003.
The directive has specific applicability, targeting all Mystère Falcon 900 series aeroplanes. The key requirements outlined in the directive are to inspect the safety wires on the fire extinguisher selector switches to ensure compliance with NFL 23.321 or MS20995CY15 standards, or removal of non-compliant wires. Additionally, new copper safety wires must be installed if they comply with the specified standards or are copper with a maximum diameter of 0.4 millimetres and a rupture strength of less than 45 Newtons. The directive also requires the incorporation of Work Card MF900 26-203 temporary revision TC 115 into the Aircraft Maintenance Manual (AMM). If previously installed copper safety wires did not meet the required standards, they must be reinstalled within three months of the amendment's effective date.
The obligations imposed on the parties governed by this AD include conducting the necessary inspections and ensuring that any non-compliant safety wires are either removed or replaced with compliant ones. The installation of the new safety wires and the incorporation of the revised work card into the AMM must be completed within specified timeframes. For Requirement 1, inspections must be completed before further flight after the original issue of the directive. For Requirement 2, the installation of new safety wires must be completed within eight days of the amendment's effective date. Requirement 3, which involves updating the AMM, must also be completed within eight days of the original issue of the directive. Lastly, Requirement 4, regarding the reinstallation of compliant safety wires, must be completed within three months of the amendment's effective date.
Failure to comply with the AD may result in various consequences. While specific penalties are not detailed in the text, breaches of ADs can lead to serious civil or criminal penalties under Australian aviation law. These penalties can include fines, imprisonment, or both, depending on the severity and intent of the non-compliance. The directive's purpose is to ensure the airworthiness and safety of the aircraft, and non-compliance can jeopardise these critical aspects.