AD/DHC-3/7 - Engine Breather Drain Box

Overview

The Civil Aviation Regulations 1998, which were enacted by the Commonwealth of Australia, address the need for specific safety directives and standards in the aviation industry to ensure the safe operation of aircraft. A particular legislative instrument, F2006B09093, pertains to Airworthiness Directives for the DHC-3 (Otter) Series Aeroplanes, specifically focusing on engine breather drain boxes. This directive applies to all models with serial numbers 1 to 73 and mandates compliance with the requirements set out in the De Havilland Canada document EB "O" No 5. The overarching policy objective of these regulations is to maintain the highest standards of air safety by ensuring that all aircraft meet necessary safety criteria, thereby protecting both passengers and crew. This legislative instrument is an integral part of the broader regulatory framework overseen by the Civil Aviation Safety Authority, ensuring that the aviation industry adheres to stringent safety standards.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, pertains to the Civil Aviation Safety Authority's schedule of airworthiness directives for DHC-3 (Otter) series aeroplanes. This legislative instrument applies to all DHC-3 Otter aeroplanes with serial numbers ranging from 1 to 73. It mandates actions in accordance with De Havilland Canada Engineering Bulletin "O" No 5, with reference to Canadian Airworthiness Directive 55-6, and requires compliance to be achieved forthwith. The regulation applies to the aircraft models specified, ensuring that they meet certain airworthiness standards as outlined by the Civil Aviation Safety Authority. This legislation does not specify exclusions or exemptions but mandates strict compliance for the designated serial numbers, reflecting the critical nature of maintaining airworthiness in aviation operations.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, establish the requirements for airworthiness directives issued by the Civil Aviation Safety Authority (CASA). Under section 39.105, AD/DHC-3/7 pertains to the DHC-3 (Otter) Series Aeroplanes and mandates that all models with serial numbers (S/Nos) ranging from 1 to 73 must comply with De H Canada EB “O” No 5. This directive references Canadian AD 55-6 and requires compliance forthwith, indicating that any necessary actions must be completed immediately. The main operative sections of this legislation specify that all affected aircraft must undergo a specific action as outlined in De H Canada EB “O” No 5. This involves addressing the engine breather drain box, as noted in the directive. Owners and operators of the DHC-3 (Otter) Series Aeroplanes within the specified serial number range must ensure that the aircraft meets these airworthiness standards to maintain certification and safe operational standards. This includes following detailed procedures to rectify any issues identified in the Canadian AD 55-6, ensuring that all modifications or inspections are conducted without delay. The obligations imposed by this legislation are significant for the parties involved. Owners and operators of the affected aircraft must take immediate action to comply with the directive, which includes performing the required maintenance or modifications to the engine breather drain box. CASA expects that these tasks will be carried out by qualified personnel, in accordance with the detailed procedures provided by the manufacturer. The legislation emphasises the importance of timely compliance to maintain the airworthiness of the aircraft and to ensure the safety of all passengers and crew. Failure to comply with the airworthiness directive can lead to serious consequences. Section 39.105 of the Civil Aviation Regulations 1998 stipulates that non-compliance with an airworthiness directive is an offence. The penalties for breaching these regulations can be substantial, with potential civil or criminal consequences. Although the exact penalties are not specified in the text, it is clear that CASA has the authority to take enforcement action against those who fail to adhere to the mandated requirements. This may include fines, suspension or revocation of aircraft certification, and other legal repercussions, highlighting the critical nature of strict compliance with airworthiness directives.