COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Beechcraft 36 (Bonanza) Series Aeroplanes
AD/BEECH 36/35
Amdt 1
Turbocharger Inlet Assembly 10/90
Applicability: All model A36TC or B36TC aircraft fitted with Teledyne Continental Motors (TCM) TSIO-520-UB engine.
Requirement: Inspect TCM P/N 642668, welded turbocharger inlet assembly for cracks especially in the weld joint just above the turbine inlet temperature boss. If a crack is found, replace P/N 642668 with P/N 646795 turbocharger inlet assembly before further flight, in accordance with Beechcraft Service Communique No 70.
Note 1: FAA AD 89-24-03 Amdt 39-6386 refers.
Note 2: To assist with identification, the 646795 assembly has 2 ribs approx 6 mm (0.25 inches) in height, 2.5 mm (0.1 inches) in width and 53 mm (2.1 inches) in length on top of the turbocharger mating flange.
Note 3: If P/N 642668 is not installed no further action is required.
Compliance: Before initial issue of a Certificate of Airworthiness. Thereafter reinspect at each inspection for issue of a Maintenance Release.
Background: The welded joints of the turbo charger inlet assembly have been found cracked. Exhaust leaks in this area have the potential to cause serious damage resulting in possible engine failure and/or fire.
Amendment 1 corrects typographical errors in Note 2 of the original issue.
Overview
The Civil Aviation Regulations 1998, as amended, are a comprehensive set of rules governing the operation and maintenance of aircraft in Australia. One of the key components of these regulations is the enforcement of Airworthiness Directives (ADs) which are issued by the Civil Aviation Safety Authority (CASA). Among these is the AD/BEECH 36/35, which addresses specific safety concerns for Beechcraft 36 (Bonanza) Series aeroplanes. Enacted to address the problem of cracked turbocharger inlet assemblies in certain models of Beechcraft aircraft, this directive aims to mitigate the risk of engine failure and fire by mandating regular inspections and necessary replacements of these assemblies. The objective is to ensure that any potential hazards are identified and rectified, thereby enhancing the overall safety of civil aviation within Australia. Compliance with these directives is crucial for maintaining airworthiness and ensuring the safety of passengers and crew.
Scope and Application
The Civil Aviation Safety Authority (CASA) regulations, specifically Part 39 - 105 of the Civil Aviation Regulations 1998, apply to all model A36TC or B36TC aircraft fitted with Teledyne Continental Motors (TCM) TSIO-520-UB engines. This requirement is articulated in AD/BEECH 36/35 Amendment 1 concerning the turbocharger inlet assembly. The directive mandates an inspection of the TCM P/N 642668 welded turbocharger inlet assembly for any cracks, particularly in the weld joint just above the turbine inlet temperature boss. If a crack is detected, the assembly must be replaced with the P/N 646795 turbocharger inlet assembly before further flight, in accordance with Beechcraft Service Communique No 70. The inspection must occur before the initial issue of a Certificate of Airworthiness and subsequently, at each inspection for the issue of a Maintenance Release. This regulation ensures the safety of the aircraft and its passengers by addressing the potential for serious damage, engine failure, and fire hazards arising from cracked exhaust joints.
Key Provisions
The Civil Aviation Regulations 1998, specifically in Part 39 - 105 under the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives, contains AD/BEECH 36/35 Amendment 1, which pertains to the Beechcraft 36 (Bonanza) Series Aeroplanes. This amendment mandates that all model A36TC or B36TC aircraft equipped with Teledyne Continental Motors (TCM) TSIO-520-UB engines must have their turbocharger inlet assemblies inspected (section 1). The requirement is to inspect the TCM Part Number 642668 welded turbocharger inlet assembly for any cracks, particularly at the weld joint above the turbine inlet temperature boss. If a crack is identified, the assembly must be replaced with Part Number 646795 before any further flight, as specified in Beechcraft Service Communique No 70.
Entities governed by this directive, including aircraft owners, operators, and maintenance personnel, are obligated to adhere to the outlined inspection and replacement procedures. This involves a thorough visual inspection of the turbocharger inlet assembly, with particular attention to the weld joint, and ensuring that any necessary replacements are conducted in accordance with the specified service communique. The directive also references FAA AD 89-24-03 Amendment 39-6386 and provides a detailed description of the new assembly (Part Number 646795) for identification purposes, which features two ribs on the turbocharger mating flange. Compliance with these requirements is mandatory before the initial issuance of a Certificate of Airworthiness and must be re-evaluated during each subsequent inspection for the issuance of a Maintenance Release.
Failure to comply with the provisions of AD/BEECH 36/35 Amendment 1 may result in serious safety hazards, including potential engine failure and fire, due to exhaust leaks from cracked turbocharger inlet assemblies. Under the Civil Aviation Act 1988, non-compliance can lead to civil and/or criminal penalties. The maximum penalties for breaches of these regulations include fines up to $222,200 for individuals and $1,111,000 for corporations, as well as potential imprisonment terms. These stringent measures underscore the importance of adhering to the airworthiness directives to ensure the safety and compliance of Beechcraft 36 (Bonanza) Series Aeroplanes in Australian airspace.