AD/CESSNA 207/4 - Exhaust Manifold Heat Exchanger

Overview

The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority (CASA), were enacted to ensure the safety and efficiency of civil aviation in Australia. One specific area of focus is the issuance of airworthiness directives to address potential safety concerns in aircraft operation. The regulation in question, F2006B05299, pertains to the Cessna 207 Series Aeroplanes and specifically targets an issue with the exhaust manifold heat exchanger in turbocharged models. This legislative instrument was introduced to address the problem of potential heat exchanger failure, which could lead to serious safety risks. The policy objective is to mandate corrective actions in line with Cessna Service Letter No. SE71-11 to ensure compliance with airworthiness standards. The requirement necessitates actions to be taken within 50 hours of time in service after the directive's effective date and at subsequent intervals not exceeding 50 hours of time in service.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105 under the Civil Aviation Safety Authority, encompasses the requirements for maintaining the airworthiness of aircraft through directives such as AD/CESSNA 207/4. This directive applies to all turbocharged models of Cessna 207 Series aeroplanes, mandating specific action concerning the exhaust manifold heat exchanger. The directive requires compliance with Cessna Service Letter No. SE71-11 and mandates that the required action be taken within 50 hours of time in service after 9 June 1971 and subsequently at intervals not exceeding 50 hours of time in service. This regulation is designed to ensure ongoing compliance with airworthiness standards, thereby maintaining the safety and operational integrity of the aircraft within the Commonwealth of Australia. The scope of the directive is limited to the specified aircraft models and the particular component identified, with no exclusions or exemptions mentioned in the text.

Key Provisions

The Civil Aviation Regulations 1998, under PART 39 - 105, mandate specific airworthiness directives for the maintenance and operation of certain aircraft, with AD/CESSNA 207/4 being a pertinent example. This directive pertains to the exhaust manifold heat exchanger for all turbocharged models of the Cessna 207 Series aeroplanes (section 39-105). The directive requires compliance with the specifications and actions detailed in Cessna Service Letter No. SE71-11 (section 39-105). This initial requirement necessitates action within 50 hours of time in service following the directive's implementation date of 9 June 1971, and subsequently, the actions must be carried out at intervals not exceeding 50 hours of time in service (section 39-105). Entities and individuals governed by these regulations must adhere to the outlined maintenance schedules and procedures to ensure the airworthiness of the aircraft. Specifically, operators of Cessna 207 Series aeroplanes must ensure that the exhaust manifold heat exchanger is inspected and serviced according to the requirements specified in Cessna Service Letter No. SE71-11. This involves conducting the mandated checks within the prescribed timeframes to maintain compliance with the Civil Aviation Regulations (section 39-105). Failure to comply with the airworthiness directives as specified in the Civil Aviation Regulations can lead to serious consequences. Non-compliance with these directives may result in penalties under the Civil Aviation Act 1988. In particular, operators who fail to adhere to the maintenance requirements can face civil penalties, including fines. The specific maximum penalties are not detailed within the legislative instrument but are stipulated in the overarching Civil Aviation Act. Furthermore, continued operation of an aircraft that does not meet the airworthiness standards could lead to enforcement actions, including grounding of the aircraft and potential criminal charges against the operators or maintenance personnel involved.