SCHEDULE OF AIRWORTHINESS DIRECTIVES Beechcraft 400 Series Aeroplanes
Beechcraft Beechjet 400A · Other Documents
Overview
This document is an Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority (CASA) of Australia, specifically addressing the Beechcraft Beechjet 400A model. It outlines necessary inspections and compliance requirements to ensure the safety and airworthiness of the aircraft. The directive mandates a visual inspection of the bleed air supply tube assemblies for any signs of damage, such as broken wire braiding or leaks in the bellows assemblies. The document emphasizes the importance of these inspections to prevent potential failures that could lead to hazardous conditions during flight. Compliance with the directive is required within specified flight hour intervals, ensuring ongoing safety for operators of the Beechjet 400A.
- Inspect bleed air supply tube assemblies for broken wire braiding or leaks.
- Replace any defective duct before further flight.
- Initial compliance required within 200 flight hours of the directive's effective date.
- Subsequent inspections must occur at intervals not exceeding 400 flight hours.
- Failure of the bleed air supply tube can lead to serious safety hazards.
Document
Source
Originally published by services.casa.gov.au. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Other Documents
- Year
- 2001
- Pages
- 1
- File size
- 12 KB
- Publisher
- services.casa.gov.au
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- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
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In this document
Applicability
The directive specifically applies to Beechcraft Model 400A aeroplanes, indicating that the required actions are necessary for this model to maintain airworthiness.
Requirement
Operators must visually inspect the bleed air supply tube assemblies for broken wire braiding or leaks in the bellows assemblies. These tubes are located in the aft fuselage and connect to ducting in the pylon area. If any defects are found, the defective duct must be replaced before further flight.
Compliance
The compliance timeline for this directive is set within 200 flight hours from the effective date, with subsequent inspections required at intervals not exceeding 400 flight hours.
Background
The directive was prompted by reports of potential failures in the engine bleed air supply tube, which could lead to high-temperature air damaging surrounding structures and components.
Safety notes
- Failure to comply with the directive may result in unsafe operating conditions.
- Inspecting the bleed air supply tubes is critical to prevent high-temperature air damage.
Full document text
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Beechcraft 400 Series Aeroplanes 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. 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.