COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (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.
Beechcraft 400 Series Aeroplanes
AD/BEECH 400/20 Bleed Air Supply Tube Assembly 9/2001
Applicability: Model 400A aeroplanes.
Requirement: Visually inspect the bleed air supply tube assemblies for broken wire braiding on the bellows assemblies or for ruptured or leaking bellows assemblies. The bleed air supply tubes are located within the aft fuselage and connect with mating ducting in the pylon area on the right and left side of the aircraft.
If any braiding wires are broken or if any bellows assembly is found to be leaking replace the defective duct with a serviceable duct before further flight.
Note 1: FAA AD 2001-03-06 refers.
Note 2: Compliance with the relevant procedures specified in Chapter 4, “Airworthiness Limitations” in the Raytheon Beechjet 400/400A Maintenance Manual, Revision B26, satisfies the intent of this Directive.
Compliance: Unless previously accomplished, within 200 flight hours from the effective date of this Airworthiness Directive and thereafter at intervals not to exceed 400 flight hours.
This Airworthiness Directive becomes effective on 6 September 2001.
Background: This Directive is prompted by advice that failure of the engine bleed air supply tube can occur resulting in high temperature bleed air impinging on surrounding structure, wiring and components.
Eugene Paul Holzapfel
Delegate of the Civil Aviation Safety Authority 27 July 2001
The above AD is notified in the Commonwealth of Australia Gazette on 15 August 2001.
Overview
The Civil Aviation Regulations 1998, specifically PART 39 - 105, includes an Airworthiness Directive issued by the Civil Aviation Safety Authority (CASA) to address safety concerns in aircraft operations. The AD/BEECH 400/20 issued on 27 July 2001 and made effective on 6 September 2001 targets the Beechcraft 400 Series aeroplanes, particularly the Model 400A aeroplanes. This directive was introduced to mitigate the risk of engine bleed air supply tube failures, which could lead to high-temperature bleed air impacting surrounding structures, wiring, and components. The policy objective is to ensure the airworthiness of the specified aircraft by mandating regular inspections and the replacement of defective ducts to maintain safety standards in civil aviation.
Scope and Application
The Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998 (CAR 1998) applies specifically to Model 400A aeroplanes within the Beechcraft 400 Series. The directive mandates a visual inspection of the bleed air supply tube assemblies to check for broken wire braiding on the bellows assemblies or any instances of ruptured or leaking bellows. The affected components are located in the aft fuselage and are connected with mating ducting in the pylon area on the right and left sides of the aircraft. In the event of any discovered defects, the directive requires the replacement of the defective ducts with serviceable ones before further flight operations. The AD becomes effective on 6 September 2001 and requires compliance within 200 flight hours from this date, with subsequent inspections to be conducted at intervals not exceeding 400 flight hours. This regulatory measure is aimed at addressing potential safety hazards associated with the failure of bleed air supply tubes, as highlighted in the background section of the AD.
Key Provisions
The main sections of this Airworthiness Directive (AD) are the applicability, requirement, and compliance sections. The AD applies to Model 400A aeroplanes. It requires a visual inspection of the bleed air supply tube assemblies for broken wire braiding on the bellows assemblies or for ruptured or leaking bellows assemblies. These tubes are situated within the aft fuselage and connect with mating ducting in the pylon area on both sides of the aircraft. If any braiding wires are found to be broken or if any bellows assembly is leaking, the defective duct must be replaced with a serviceable one before further flight. This directive references FAA AD 2001-03-06 and notes that compliance with the relevant procedures specified in the Raytheon Beechjet 400/400A Maintenance Manual, Revision B26, satisfies the intent of this Directive.
The obligations imposed on the parties governed by this AD include conducting the required visual inspections and taking necessary corrective action if any defects are found. Specifically, operators of Model 400A aeroplanes must visually inspect the bleed air supply tube assemblies as specified in the requirement section of the AD. If any defects are found, such as broken wire braiding or ruptured bellows assemblies, the defective ducts must be replaced with serviceable ones before further flight. Compliance with the procedures outlined in the Raytheon Beechjet 400/400A Maintenance Manual, Revision B26, is also mandated to ensure the intent of the AD is satisfied.
Failure to comply with the AD may result in civil and criminal consequences. The AD does not explicitly state the penalties for non-compliance; however, under the Civil Aviation Act 1988 and the Civil Aviation Regulations 1998, non-compliance with an AD can lead to significant fines and potential imprisonment. The Civil Aviation (Airworthiness) Regulations 1998 provide that an aircraft must not be flown if it is not airworthy, and any person who contravenes this regulation is liable to a fine of up to $165,200 for a corporation and $33,040 for an individual, or imprisonment for up to five years, or both. Therefore, failing to adhere to this AD could result in these severe penalties, highlighting the importance of compliance.