AD/PA-30/24 - Fuselage Aft Bulkhead - Inspection and Modification

Overview

The Civil Aviation Regulations 1998, as amended by the legislative instrument F2006B05666, address the safety and airworthiness of specific Piper aircraft models. Enacted by the Australian Parliament, this regulation targets the Piper PA-30 and PA-39 series aeroplanes, commonly known as Twin Comanche models. The legislation was introduced to address safety concerns related to the fuselage aft bulkhead of these aircraft, which were identified to have potential structural integrity issues that could compromise flight safety. The policy objective is to ensure that the specified aircraft undergo mandatory inspections and modifications to their fuselage aft bulkheads to prevent any safety-related incidents. The Civil Aviation Safety Authority (CASA) has issued specific Airworthiness Directives (AD) under this regulation, such as AD/PA-30/24, which mandates inspections and modifications within a specified timeframe to ensure compliance. This approach aims to maintain the operational safety of these aircraft by enforcing regular checks and necessary repairs to mitigate any risks associated with the identified structural deficiencies.

Scope and Application

The Civil Aviation Safety Authority Schedule of Airworthiness Directives, specifically AD/PA-30/24, pertains to all Piper PA-30 and PA-39 series aeroplanes with serial numbers within the specified ranges, excluding those that have incorporated kit Piper P/N 760783. This directive mandates an inspection and modification of the fuselage aft bulkhead, with compliance required within 100 hours of time in service after the directive's issuance date of 29 March 1974 and subsequently at intervals not exceeding 100 hours of time in service until the modification is completed. The legislation falls under the purview of the Commonwealth of Australia, with the Civil Aviation Regulations 1998 governing its implementation. The directive's scope extends to all relevant aircraft operating within Australia, ensuring adherence to safety standards set by the Civil Aviation Safety Authority. Any deviations or exclusions from this directive would be detailed in subordinate instruments or specific regulatory amendments.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, includes a Schedule of Airworthiness Directives applicable to certain aircraft models. For Piper PA-30 and 39 (Twin Comanche) series aeroplanes, AD/PA-30/24 provides critical directives regarding the fuselage aft bulkhead. This directive applies to all model PA-30 with serial numbers 30-1 to 30-2000 and all model PA-39 with serial numbers 39-1 to 39-155, excluding those that have incorporated the kit Piper P/N 760783 (section 105.3). The directive mandates that the fuselage aft bulkhead must be inspected within 100 hours of time in service following 29 March 1974. Thereafter, inspections must occur at intervals not exceeding 100 hours of time in service until modifications are completed. This directive is supported by Piper Service Letter No. 679 (section 105.4). Compliance with these inspection and modification requirements is crucial for maintaining the airworthiness of these aircraft (section 105.5). The obligations imposed by AD/PA-30/24 include the necessity for aircraft operators and maintenance personnel to adhere to the inspection and modification schedule. Aircraft owners and operators must ensure that the specified inspections are performed by qualified personnel and that any identified issues are rectified in accordance with the provided service letter (section 105.6). Failure to comply with these directives can lead to significant consequences. In terms of penalties and consequences, non-compliance with airworthiness directives under the Civil Aviation Regulations can result in both civil and criminal penalties. Civil penalties may include fines and potential grounding of the aircraft. In more severe cases, criminal charges could be brought against the aircraft operator or maintenance personnel, leading to imprisonment and/or substantial fines (section 105.7). The exact penalties depend on the nature and severity of the breach, but the regulations underscore the importance of strict adherence to airworthiness directives to ensure the safety of all persons involved in aviation activities (section 105.8).