COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Cessna 206 Series Aeroplanes
AD/CESSNA 206/20 Wing Flap Actuator Ball Nut Assemblies 3/77
Applicability: Model U206 with S/Nos. as detailed in Cessna SL SE76-25.
Requirement: 1. Inspect P/N C301002-0101 or P/N C301002-0102 wing flap actuator for date stamp code as detailed in Cessna SL SE76-25.
2. If the date stamp code on the actuator is OH, HH, WH or ZH, install a placard near the flap control which reads:
“FLAP EXTENSION PROHIBITED”
Note: This placard may be removed when the Paragraph 3 requirement is satisfied.
3. Replace affected wing flap actuator ball nut assemblies in accordance with Cessna SL SE76-25.
Compliance: Paragraphs 1 and 2 - Before further flight after 28 January 1977.
Paragraph 3 - Within 100 hours time in service after 28 January 1977.
Overview
The Civil Aviation Regulations 1998 (Cth), amended through F2006B05225, was enacted to enhance aviation safety by addressing specific issues with aircraft components. This legislative instrument was introduced to tackle the problem of faulty wing flap actuator ball nut assemblies in certain Cessna 206 Series Aeroplanes, which posed a significant risk to flight safety. The Australian Parliament enacted this regulation to ensure that all aircraft meet stringent safety standards, thereby protecting the public and crew from potential hazards. The policy objective of this regulation is to mandate inspections and repairs of specific components in the specified aircraft models to prevent operational risks associated with these parts, ultimately ensuring the safety and reliability of air travel.
The Civil Aviation Regulations 1998 (Cth) include detailed directives concerning the inspection and replacement of wing flap actuator ball nut assemblies in Cessna 206 Series Aeroplanes. This regulation requires that specific models with serial numbers as detailed in Cessna SL SE76-25 be inspected for particular date stamp codes on the wing flap actuators. Depending on the code, operators must either restrict flap extension or replace the affected components. Compliance with these directives is mandatory, with specific timelines set for inspections and repairs to ensure that these safety measures are implemented promptly and effectively.
Scope and Application
The Civil Aviation Regulations 1998, as amended, apply to all aircraft operations within Australian airspace, overseen by the Civil Aviation Safety Authority (CASA). Specifically, Part 39 - 105 mandates the application of Airworthiness Directives (ADs) to ensure the safety and airworthiness of aircraft. One such AD, AD/CESSNA 206/20, pertains to the Cessna 206 series aeroplanes, particularly those with serial numbers as detailed in Cessna Service Letter (SL) SE76-25. This directive applies to aircraft owners and operators who must adhere to the specified inspection and maintenance requirements to ensure compliance with safety standards. The geographic and jurisdictional reach of this regulation is national, applying uniformly across all states and territories of Australia. There are no exclusions or exemptions explicitly stated in the directive, meaning all specified Cessna 206 models must comply. The AD may be extended or restricted through subordinate instruments issued by CASA, ensuring continuous updates and adherence to evolving safety standards.
Key Provisions
The main operative sections of the AD/CESSNA 206/20 pertain to the inspection and modification of the wing flap actuator ball nut assemblies in Cessna 206 Series aeroplanes. Section 1 mandates the inspection of the wing flap actuator (paragraph 1), specifically checking for a date stamp code that matches the criteria outlined in Cessna SL SE76-25. If the date stamp code is found to be OH, HH, WH, or ZH, a placard must be installed near the flap control with the text "FLAP EXTENSION PROHIBITED" (paragraph 2). This placard can be removed once the requirements of paragraph 3 are met. Section 3 requires the replacement of the affected wing flap actuator ball nut assemblies in accordance with the instructions provided in Cessna SL SE76-25 (paragraph 3). Compliance with these directives must occur before further flight after 28 January 1977 for paragraphs 1 and 2, and within 100 hours of time in service after 28 January 1977 for paragraph 3.
The Civil Aviation Regulations 1998 impose specific obligations on the parties governed by these airworthiness directives. Firstly, operators of Model U206 aircraft with serial numbers as detailed in Cessna SL SE76-25 must ensure that the inspection of the wing flap actuator and the placard installation (if applicable) are completed before any further flight post 28 January 1977. Secondly, they must replace the affected wing flap actuator ball nut assemblies within 100 hours of time in service after 28 January 1977, as per the guidance in Cessna SL SE76-25. These obligations are designed to ensure the continued airworthiness and safety of the aircraft.
Failure to comply with the provisions outlined in the AD/CESSNA 206/20 may result in significant legal and financial consequences. Although specific penalties are not detailed in the text, non-compliance with Civil Aviation Regulations could lead to enforcement actions by the Civil Aviation Safety Authority (CASA). Such actions may include fines, suspension or revocation of airworthiness certificates, or other regulatory sanctions. Additionally, operators found in breach of these directives could face civil or criminal liability for any accidents or incidents resulting from non-compliance. Given the potential impact on aviation safety, strict adherence to these regulations is essential.