COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Enstrom F-28 Series Helicopters
AD/ENST 28/12 Tail Rotor Pitch Link Safety Washer - Replacement
4/76
Applicability: All model F-28A with S/Nos. 03 to 349 and model 280 with S/Nos. 1001 to 1030. Document: Enstrom Service Note No. 0033.
Compliance: Within 100 hours time in service after 31 May 1976.
Overview
The Civil Aviation Regulations 1998, enacted by the Australian Parliament, govern various aspects of civil aviation, including the safety of aircraft and operations within Australian airspace. One specific legislative instrument, F2006B09567, pertains to the Enstrom F-28 Series Helicopters and is aimed at addressing safety concerns related to the tail rotor pitch link safety washer. This directive was introduced to ensure that all model F-28A helicopters with serial numbers ranging from 03 to 349, and model 280 helicopters with serial numbers from 1001 to 1030, replace their tail rotor pitch link safety washers to mitigate potential risks. The policy objective behind this directive is to enhance the overall safety of civil aviation operations by ensuring that these specific aircraft meet required safety standards.
Scope and Application
The Civil Aviation Regulations 1998, as amended, apply to all air operations within Australian territory and to Australian aircraft wherever they may be. Specifically, Part 39 - 105 within the Civil Aviation Regulations pertains to the Airworthiness Directives issued by the Civil Aviation Safety Authority (CASA) and is applicable to all persons and entities involved in the operation, maintenance, and registration of aircraft within Australia. This particular directive, AD/ENST 28/12, targets the Enstrom F-28 Series helicopters, specifically those with serial numbers within the defined ranges for models F-28A and 280, mandating compliance with the specified safety measures regarding the tail rotor pitch link safety washer. The directive applies universally to these specified models and serial numbers, irrespective of their location within Australia or the identity of their operators, and compliance is mandatory within 100 hours of time in service after the directive's effective date of 31 May 1976. There are no stated exclusions or exemptions within the directive, and the application extends to all affected aircraft without modification through subordinate instruments.
Key Provisions
The Civil Aviation Regulations 1998, under PART 39 - 105, contain specific Airworthiness Directives (ADs) aimed at ensuring the safe operation of aircraft. One such AD, AD/ENST 28/12, pertains to the Enstrom F-28 Series Helicopters, specifically models F-28A with serial numbers (S/Nos.) 03 to 349 and model 280 with S/Nos. 1001 to 1030. This directive focuses on the replacement of the tail rotor pitch link safety washer, as outlined in Enstrom Service Note No. 0033. The directive mandates compliance within 100 hours of time in service after 31 May 1976.
Under these regulations, the key provision is that all specified Enstrom F-28 Series Helicopters must have their tail rotor pitch link safety washers replaced as directed. This requirement is critical for maintaining the airworthiness of the helicopters and ensuring safety during flight operations. The directive clearly specifies the models and serial numbers that must comply with this safety measure, leaving no ambiguity regarding the scope of applicability.
The AD imposes several obligations on the parties involved, including aircraft owners, operators, and maintenance personnel. They must ensure that the replacement of the tail rotor pitch link safety washer is completed within the stipulated timeframe. This involves following the guidelines provided in Enstrom Service Note No. 0033, which includes detailed instructions on the replacement process. The onus is on these parties to verify that the directive is adhered to, thereby preventing potential safety hazards.
Failure to comply with the AD/ENST 28/12 could result in serious legal and safety consequences. The Civil Aviation Regulations 1998 outline penalties for non-compliance, which can include fines and other sanctions. In severe cases, non-compliance may lead to the grounding of the aircraft until the required modifications are made, potentially disrupting operations and incurring additional costs. The maximum penalties for breaches of these regulations can be substantial, reflecting the importance of adhering to airworthiness directives. It is crucial for all involved to understand and meet these requirements to avoid legal repercussions and ensure the continued safe operation of the aircraft.