AD/BEECH 33/36 Amdt 2 - Rudder Forward Spar

Overview

The Civil Aviation Regulations 1998, specifically Part 39 - 105 of the Civil Aviation Safety Authority Schedule of Airworthiness Directives, includes AD/BEECH 33/36 Amendment 2 concerning the Beechcraft 33 and 35-33 (Debonair/Bonanza) series aeroplanes. This legislative instrument, introduced to address the issue of cracks in the rudder forward spar of the specified aircraft models, was enacted to ensure air safety by preventing potential loss of control due to structural failure. The Civil Aviation Regulations 1998 are overseen by the Australian Parliament, and the policy objective behind these regulations is to maintain and enhance the safety of civil aviation within Australia. The amendment was introduced in response to reports of fatigue cracks at the hinge bracket attachments in the rudder forward spar, a problem traced back to holes drilled for installing nut plates. The directive mandates inspections and corrective actions to mitigate these risks, ensuring that the aircraft remain airworthy and safe for operation.

Scope and Application

The Civil Aviation Regulations 1998, as detailed in Part 39 - 105, specifically mandate the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives for certain Beechcraft aeroplanes, namely the Beechcraft 33 and 35-33 (Debonair/Bonanza) series. This legislation applies to all aircraft models with serial numbers within specified ranges, including those from serial CD-1 through CD1304, CE-1 through CE-1425, and CJ-1 through CJ-179. The directive is designed to ensure the safety of these aircraft by requiring inspections of the rudder forward spar in accordance with Beech Service Bulletin SB 2333 Revision 1 dated November 1991. Compliance with this directive is mandatory, with inspections needed before exceeding 1000 hours of total in-service time (TIS) or 100 hours of TIS after 1 November 1990, whichever is later, and subsequently at intervals not exceeding 500 hours TIS. The directive became effective on 23 April 1998, and its issuance was prompted by reports of cracks at the hinge bracket attachments in the rudder forward spar, which could lead to loss of aircraft control. The directive references FAA AD 93-24-03 Amendment 39-8752 and includes terminating actions such as the installation of specific repair kits or replacement parts.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105 (subsections AD/BEECH 33/36Amdt 2), mandates inspections for the rudder forward spar on Beechcraft 33 and 35-33 (Debonair/Bonanza) series aeroplanes. This requirement applies to specific serial numbers and models (subsection 35-33, 35-A33, 35-B33, 35-C33, E33, F33, G33 CD-1 through CD1304; 35- C33A, E33A, F33A CE-1 through CE-1425; E33C, F33C CJ-1 through CJ-179). The inspection must adhere to the guidelines set forth in Beech Service Bulletin SB 2333 Revision 1 dated November 1991 (subsection 1). This is intended to ensure the safety of the aircraft by identifying and rectifying potential structural weaknesses in the rudder forward spar. Compliance with these regulations requires that inspections be conducted before the component reaches 1000 hours of Time In Service (TIS) or 100 hours TIS after 1 November 1990, whichever is later. After this initial inspection, further inspections must be carried out at intervals not exceeding 500 hours TIS (subsection Compliance: 1). The directive specifies terminating actions that conclude the compliance requirements, including the installation of repair kit 33-6001-1S, replacement of the rudder assembly, and installation of rudder spar reinforcements as per FAA STC SA4899NM and FAA STC SA00044LA (subsection Terminating actions). Failure to comply with these provisions can result in severe consequences, including potential loss of aircraft control due to structural failure. The directive was amended on 23 April 1998, updating previous requirements and incorporating additional terminating actions to ensure ongoing airworthiness (subsection This amendment becomes effective). The original directive was issued in August 1990, with an amendment made effective in January 1993. Under the Civil Aviation Regulations 1998, there are specific offences and penalties for non-compliance with airworthiness directives. Violation of these regulations can result in civil penalties, including fines, and criminal charges for serious breaches that may lead to imprisonment. The exact penalties depend on the severity and frequency of the violation, but they are designed to enforce strict adherence to safety standards in aviation.