AD/BEECH 33/37 - Wing Forward Spar Carry-Through Structure

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Legislation au F2006B03804 Not in force Legislative Instrument

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 


Beechcraft 33 and 35-33 (Debonair/Bonanza) Series Aeroplanes

 

AD/BEECH 33/37 Wing Forward Spar Carry-Through Structure 10/91

Applicability: Model 35-33, 35-A33, 35-B33, 35-C33, E33, F33, AND G33 with serial numbers CD-1 through CD1304.

 

Model 35-C33A, E33A and F33A with serial numbers CE-1 through CE-1192. Model E33C and F33C with serial numbers CJ-1 through CJ-179.

Requirement: Action in accordance with the Technical Requirements of FAA AD 91-14-13 Amdt 39-7054.

 

Note: Beech SB 2360 refers.

 

Compliance: As specified in Requirement Document with a revised effective date of 3 October 1991, for Australian registered aircraft.

 

Background: The FAA has received reports of cracks in the wing front carry-through frame structure. This Directive requires initial and repetitive inspections and repair or reinforcement if found cracked.

 

Overview

The Civil Aviation Regulations 1998, specifically under PART 39 - 105, includes Airworthiness Directives to ensure the safety of aircraft operating in Australian airspace. AD/BEECH 33/37 pertains to Beechcraft 33 and 35-33 (Debonair/Bonanza) series aeroplanes and addresses issues with the wing forward spar carry-through structure. This directive was introduced in response to reports of cracks in this critical structural component, as communicated by the Federal Aviation Administration (FAA) in AD 91-14-13 Amdt 39-7054. The aim of this legislative instrument is to mandate inspections, repairs, or reinforcement of affected aircraft to mitigate safety risks. The enactment of this directive by the Civil Aviation Safety Authority under the Civil Aviation Act 1988 ensures that Australian registered aircraft meet the necessary safety standards as specified by the FAA, thereby safeguarding the integrity of the aviation industry.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to the Beechcraft 33 and 35-33 (Debonair/Bonanza) Series Aeroplanes, with particular focus on the wing forward spar carry-through structure. The legislation mandates compliance with the Technical Requirements of FAA AD 91-14-13 Amdt 39-7054 for specific models and serial numbers, including Model 35-33, 35-A33, 35-B33, 35-C33, E33, F33, G33, 35-C33A, E33A, F33A, E33C, and F33C, each within specified serial number ranges. The directive is applicable to Australian registered aircraft and requires adherence to the stipulated inspection and repair protocols to address reported cracks in the wing front carry-through frame structure. The requirement document outlines the actions necessary to ensure compliance with the regulations, with an effective date of 3 October 1991. This directive extends to enforcing initial and repetitive inspections and mandating repair or reinforcement if any cracks are detected, ensuring the airworthiness of the specified aircraft models.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39, contain detailed safety directives for various aircraft types. Section 39-105 focuses on the airworthiness directives for Beechcraft 33 and 35-33 (Debonair/Bonanza) series aeroplanes. A significant provision under this section is AD/BEECH 33/37, which pertains to the wing forward spar carry-through structure (Section 39-105(10/91)). This directive applies to specific models and serial numbers of the Beechcraft 33 and 35-33 series, including models 35-33, 35-A33, 35-B33, 35-C33, E33, F33, and G33 with serial numbers CD-1 through CD1304, and other specified variants (Section 39-105(10/91)(Applicability)). The directive requires that actions be taken in accordance with the technical requirements outlined in FAA AD 91-14-13 Amdt 39-7054, with a reference to Beech SB 2360, and compliance with a revised effective date of 3 October 1991 for Australian registered aircraft (Section 39-105(10/91)(Requirement)). Under the Civil Aviation Regulations, the directive imposes specific obligations on aircraft owners, operators, and maintenance personnel. These parties are required to perform initial and repetitive inspections of the wing forward spar carry-through structure as per the specified technical requirements (Section 39-105(10/91)(Requirement)). If cracks are detected during these inspections, the directive mandates repair or reinforcement of the affected area to ensure the aircraft remains airworthy (Section 39-105(10/91)(Compliance)). The compliance must be documented and maintained in the aircraft's logbooks or records, ensuring traceability and accountability (Section 39-105(10/91)(Compliance)). Failure to comply with the airworthiness directive can result in severe consequences. The Civil Aviation Regulations outline potential offences and penalties for non-compliance with these safety directives. Civil penalties can include fines and enforcement actions by the Civil Aviation Safety Authority (CASA). In more serious cases, criminal charges may be brought against individuals or corporations responsible for the non-compliance, potentially leading to imprisonment. The specific penalties depend on the severity of the breach and the impact on aviation safety (Section 39-105(10/91)(Offences, Penalties, and Consequences)). The maximum penalties can be substantial, reflecting the critical importance of adhering to these safety measures.

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.