COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Cessna 170, 172, F172, FR172 and 175 Series Aeroplanes
AD/CESSNA 170/29
Amdt 1
Aft Fuselage Bulkhead Assembly 2/74
Applicability: All models 172 with S/Nos. 17260759 to 17261495, F17200905 to F17201034, FR17200351 to FR17200440.
Requirement: Action in accordance with Cessna SL SE73-37. Compliance: Within 100 hours time in service after 28 February 1974.
Overview
The Civil Aviation Regulations 1998, which were enacted by the Australian Parliament, serve as the foundational legal framework for regulating civil aviation safety in Australia. Within this extensive regulatory body, Part 39, in particular, addresses the issuance of Airworthiness Directives to ensure the safe operation of aircraft. The legislative instrument F2006B04960, pertaining to Cessna 170, 172, F172, FR172 and 175 series aeroplanes, was introduced to address specific safety concerns identified in certain models. The policy objective of this directive is to mandate specific maintenance actions to enhance the structural integrity and operational safety of these aircraft models, thereby mitigating risks associated with identified vulnerabilities in the aft fuselage bulkhead assembly. Compliance with this directive is essential to ensure the continued airworthiness and safety of the specified aircraft models.
Scope and Application
The Civil Aviation Regulations 1998, as detailed in Part 39 - 105 of the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, specifically addresses the maintenance and operational standards of Cessna 170, 172, F172, FR172, and 175 Series aeroplanes. This regulation applies to all models 172 with serial numbers ranging from 17260759 to 17261495, F17200905 to F17201034, and FR17200351 to FR17200440. The directive mandates that a particular action be taken regarding the aft fuselage bulkhead assembly, as specified in Cessna Service Letter SE73-37, to ensure compliance within 100 hours of time in service after 28 February 1974. This legislative instrument extends to all aircraft fitting the specified criteria within the Australian jurisdiction, enforcing stringent safety measures to mitigate potential risks associated with the aft fuselage bulkhead assembly of these aircraft models.
Key Provisions
The Civil Aviation Regulations 1998, under Part 39 - 105, specifically address the Airworthiness Directives concerning Cessna 170, 172, F172, FR172, and 175 Series Aeroplanes. One notable directive, AD/CESSNA 170/29 Amendment 1, pertains to the aft fuselage bulkhead assembly, identified as issue 2/74. This directive applies to specific serial numbers of Cessna models 172, F172, and FR172. The requirement outlined in this directive mandates compliance with Cessna Service Letter SE73-37, which involves specific actions regarding the aft fuselage bulkhead assembly.
Under this legislation, the primary obligation for the affected aircraft operators is to ensure that the aft fuselage bulkhead assembly is addressed within 100 hours of time in service following the specified date of 28 February 1974. This requirement is critical for maintaining the structural integrity and safety of the aircraft. The directive emphasises the importance of adhering to the manufacturer’s service letter to ensure the aircraft remains airworthy and compliant with safety standards.
Failure to comply with the AD/CESSNA 170/29 Amendment 1 can result in significant consequences. The regulations stipulate that non-compliance may lead to enforcement actions, including potential fines or other penalties as outlined in the Civil Aviation Regulations. The seriousness of these consequences underscores the importance of adhering to the mandated timeframe and procedures to avoid any adverse legal or operational repercussions.