AD/CESSNA 188/36 - Vertical Fin Rear Spar

Overview

The Civil Aviation Regulations 1998, as part of the broader legislative framework governing aviation safety in Australia, introduce specific Airworthiness Directives to address identified safety concerns in aircraft operations. One such directive, AD/CESSNA 188/36, pertains to the Cessna 188 (Agwagon) Series Aeroplanes and mandates action concerning the vertical fin rear spar to rectify structural integrity issues. This directive was enacted to ensure that specific models, those with serial numbers within the specified range, undergo necessary repairs within a defined period to prevent potential hazards arising from structural weaknesses in the vertical fin. The objective of this legislation, overseen by the Civil Aviation Safety Authority, is to maintain high safety standards in civil aviation by proactively addressing known issues that could compromise the safety of these aircraft. Enacted by the Australian Government under the authority granted by the Civil Aviation Act 1988, this directive aims to mitigate risks associated with identified structural flaws in certain Cessna models. The policy objective is to ensure that all aircraft operating within Australian airspace meet stringent safety standards, thereby protecting the public and promoting confidence in the safety of civil aviation. The directive is a practical application of the regulatory measures put in place to ensure that air travel remains a safe mode of transport, reflecting the commitment to safety inherent in the legislative process.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to all Cessna 188 (Agwagon) Series Aeroplanes with specific serial numbers, namely those ranging from 18801375 to 18803725 and T18803307T to T18803725T. These regulations are enforced by the Civil Aviation Safety Authority and are intended to ensure the airworthiness of these aircraft. The directive mandates that action be taken in accordance with Cessna Service Information Letter No. SE80-85, which provides the necessary steps to rectify identified issues. Compliance with this directive must be achieved within 100 hours of time in service after 31 December 1980. The regulation's geographic reach is national, as it pertains to all such aircraft operating within Australia. This legislation does not explicitly mention any exclusions or exemptions, implying that all specified aircraft must comply with the outlined requirements. The scope and application of these regulations can be extended or further defined through subordinate instruments issued by the Civil Aviation Safety Authority.

Key Provisions

The Civil Aviation Regulations 1998, specifically within Part 39, establish various rules and directives to ensure the safety and airworthiness of aircraft. One such directive, AD/CESSNA 188/36, pertains to the Cessna 188 (Agwagon) series aeroplanes. This directive mandates actions concerning the vertical fin rear spar of these aircraft. The applicability of AD/CESSNA 188/36 extends to Model 188 with serial numbers ranging from 18801375 to 18803725, and from T18803307T to T18803725T. The directive requires adherence to the instructions outlined in Cessna SIL No. SE80-85, which provides the necessary steps to address any issues with the vertical fin rear spar. Compliance with these directives must be achieved within 100 hours of time in service after 31 December 1980. The AD/CESSNA 188/36 directive imposes specific obligations on the owners and operators of the affected Cessna 188 aircraft. Primarily, these parties must ensure that the vertical fin rear spar of their aeroplanes is inspected and, if necessary, repaired or replaced as per the instructions provided in Cessna SIL No. SE80-85. This involves a detailed examination of the spar below the lower rudder hinge, where cracks have been found in similar overseas models. The responsibility to maintain compliance with this directive lies with the aircraft operators, who must ensure that all required actions are completed within the stipulated timeframe of 100 hours after the specified date. Failure to comply with AD/CESSNA 188/36 can result in severe consequences. The Civil Aviation Regulations 1998 do not explicitly state penalties for non-compliance in this context, but general provisions within the regulations imply that non-compliance with airworthiness directives can lead to serious safety risks. Such risks could potentially result in civil or criminal liability for the operators, including fines and imprisonment, depending on the severity of the non-compliance and its impact on flight safety. Therefore, it is imperative for operators to adhere strictly to the requirements of this directive to avoid any adverse outcomes.