AD/BEECH 77/2 - Rudder and Rudder Trim Tab

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Legislation au F2006B04192 In force Legislative Instrument

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 


Beechcraft 77 (Skipper) Series Aeroplanes

 

AD/BEECH 77/2 Rudder and Rudder Trim Tab 4/80

Applicability: All model 77 with S/Nos. WA-1 to WA-76. Requirement:  Action in accordance with Beechcraft SI No. 1116. Compliance:               Within 25 hours time in service after 11 march 1980.

Background: There is a possibility of water accumulating in the rudder and/or trim tab.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overview

The Civil Aviation Regulations 1998, specifically within Part 39-105, addresses the safety of aircraft by imposing various airworthiness directives. One such directive, AD/BEECH 77/2, targets the Beechcraft 77 (Skipper) Series aeroplanes, focusing on the rudder and rudder trim tab. This directive was enacted to address the issue of water accumulation in the rudder and trim tab, which could potentially compromise the aircraft's safety. The directive applies to all model 77 aeroplanes with serial numbers ranging from WA-1 to WA-76, requiring compliance with Beechcraft Service Information No. 1116 within 25 hours of time in service after 11 March 1980. The objective is to ensure the continued airworthiness and safety of these aircraft by mitigating the risks associated with water accumulation. The directive is issued under the authority of the Civil Aviation Safety Authority, an entity established to regulate and enforce civil aviation safety within Australia. The policy objective behind this regulation is to maintain high safety standards in the aviation industry, ensuring that all aircraft, particularly those with identified safety concerns such as the Beechcraft 77 series, are maintained in a condition that precludes hazards to flight safety.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to all Beechcraft 77 (Skipper) Series Aeroplanes with serial numbers WA-1 to WA-76, mandating compliance with Beechcraft Service Instruction No. 1116. This requirement entails taking corrective action within 25 hours of the aircraft being in service following 11 March 1980, to address the potential accumulation of water in the rudder and/or rudder trim tab, which could compromise airworthiness. This regulation, established under the authority of the Civil Aviation Safety Authority, has a clear geographic reach, applying across the Commonwealth of Australia, thereby ensuring that all relevant aircraft within the specified serial number range adhere to the stipulated safety measures. There are no stated exclusions, exemptions, or thresholds in this directive, meaning that all applicable aircraft must comply without exception. The regulation's application can be extended or further defined through subordinate instruments issued by the Civil Aviation Safety Authority.

Key Provisions

The Civil Aviation Regulations 1998, specifically in Part 39 - 105, under the Civil Aviation Safety Authority Schedule of Airworthiness Directives, addresses the maintenance and safety of the Beechcraft 77 (Skipper) Series Aeroplanes. The directive AD/BEECH 77/2 pertains to the rudder and rudder trim tab of aircraft with serial numbers WA-1 to WA-76. According to this directive (section 4/80), the requirement is that all affected aircraft must undergo action as per Beechcraft Service Instruction No. 1116. This action must be completed within 25 hours of time in service following the directive's date of 11 March 1980. The directive is prompted by the potential for water accumulation in the rudder and/or trim tab, which could pose a safety risk. The obligations imposed by this directive on the parties, primarily aircraft operators, include ensuring that the specified action is carried out within the stipulated timeframe. This involves following the detailed instructions provided in Beechcraft Service Instruction No. 1116, which may include inspection, maintenance, or repair of the rudder and rudder trim tab systems to prevent water accumulation and associated issues. Operators must also ensure that the maintenance is logged appropriately and that the aircraft is kept airworthy throughout the process. The directive ensures that the safety of the aircraft is maintained by addressing a specific potential hazard. Failure to comply with the requirements set out in AD/BEECH 77/2 may result in significant legal consequences. Although the specific penalties for non-compliance are not detailed within the directive itself, the overarching framework of the Civil Aviation Regulations 1998 provides for potential enforcement actions. Non-compliance could lead to enforcement actions by the Civil Aviation Safety Authority (CASA), which may include fines, penalties, or even grounding of the aircraft until the required actions are completed. In more severe cases, repeated non-compliance or significant safety breaches could result in prosecution, with potential criminal penalties for individuals or corporate entities found guilty of violating aviation safety regulations.

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.