AD/PA-34/4 - Stabilator - Inspection and Drilling of Drain Holes

Overview

The Civil Aviation Regulations 1998, specifically Part 39 - 105, addresses the need for stringent airworthiness standards for aircraft operating within Australian airspace. This regulation was enacted to ensure the safety of civil aviation and was implemented by the Parliament of the Commonwealth of Australia. The particular directive AD/PA-34/4 concerning Piper PA-34 (Seneca) Series Aeroplanes aims to mitigate potential risks associated with the stabilator by requiring an inspection and the drilling of drain holes. The objective is to enhance the overall safety of these aircraft by preventing issues that could arise from fluid accumulation, thereby ensuring that they remain airworthy and compliant with safety standards. The regulation applies to model PA-34-200 and must be adhered to within 100 hours of time in service after 29 September 1972, as referenced in Piper SL No. 615.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 – 105, mandates that the Civil Aviation Safety Authority (CASA) establish and enforce Airworthiness Directives (AD) to ensure the safety of aircraft operations. AD/PA-34/4 pertains to Piper PA-34 (Seneca) Series aeroplanes, specifically model PA-34-200 as documented in Piper Service Letter No. 615, focusing on the stabilator inspection and the drilling of drain holes. This directive applies to all Piper PA-34-200 aircraft that have reached 100 hours of time in service following 29 September 1972. The regulation is applicable nationwide, under the jurisdiction of the Commonwealth of Australia, and extends to any entity or individual operating such aircraft within Australia’s airspace. There are no specified exclusions or exemptions mentioned within this directive, indicating a broad application across the specified aircraft model and operational scope. The scope of the regulation may be further refined or extended through subordinate instruments issued by CASA, ensuring compliance with evolving safety standards.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, establish a Schedule of Airworthiness Directives for various aircraft, including the Piper PA-34 (Seneca) series aeroplanes. One such directive, AD/PA-34/4, pertains to the stabilator and requires an inspection and the drilling of drain holes on model PA-34-200 aircraft. This directive is documented in Piper Service Letter No. 615 and must be complied with within 100 hours of time in service after 29 September 1972. The directive is intended to ensure the continued airworthiness and safety of the aircraft by addressing potential issues related to the stabilator. The obligations imposed by this directive are straightforward yet critical for maintaining the integrity of the aircraft. Operators of the affected Piper PA-34-200 aircraft must ensure that the stabilator is inspected according to the specified criteria outlined in Piper Service Letter No. 615. This includes the drilling of drain holes to prevent fluid accumulation that could affect the stabilator's functionality. The inspection must be conducted within the stipulated timeframe of 100 hours of time in service post the directive's issuance date. Compliance with this directive is mandatory, and failure to adhere to the requirements could compromise the safety and airworthiness of the aircraft. Failure to comply with the airworthiness directive AD/PA-34/4 could result in serious consequences. Under the Civil Aviation Regulations 1998, non-compliance with airworthiness directives is an offence. The penalties for such breaches can be significant, both in terms of civil and criminal liabilities. Civilly, the operator may face fines and potential grounding of the aircraft until the required actions are completed. Criminally, individuals responsible for the oversight of the aircraft, including the operator or maintenance personnel, may be subject to prosecution, which could result in fines or imprisonment. The exact penalties depend on the severity of the breach and the discretion of the court, but the potential for substantial financial and legal repercussions underscores the importance of strict compliance with the directive.