AD/HU 269/19 Amdt 1 - Engine Mount Hanger - Inspection

Overview

The Civil Aviation Regulations 1998, enacted by the Australian Parliament, are fundamental to the governance of civil aviation in Australia, ensuring safety and efficiency in air travel. Among these regulations, Part 39, which includes Airworthiness Directives (ADs), addresses specific issues related to aircraft maintenance and operational safety. AD/HU 269/19 Amendment 1, issued by the Civil Aviation Safety Authority (CASA), targets the inspection of engine mount hanger assemblies in Schweizer (Hughes) 269 Series helicopters, specifically models 269A and 269B, to prevent potential cracking that could compromise safety. This directive was introduced to address the identified problem of structural integrity in the engine mount hanger assemblies, aiming to ensure continued airworthiness and safety of the aircraft. The policy objective is to mitigate risks associated with mechanical failure by mandating regular inspections, thereby protecting both crew and passengers.

Scope and Application

The Civil Aviation Regulations 1998, specifically under Part 39 - 105, pertains to the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives for Schweizer (Hughes) 269 Series Helicopters, as outlined in AD/HU 269/19 Amendment 1. This regulation applies to the inspection of engine mount hanger assemblies for Schweizer (Hughes) 269A and 269B models. The requirement is to conduct a visual inspection of the left and right hand engine mount drive end hangar assembly, specifically parts numbered 269A8617 and 269A8618, to check for any signs of cracking. It is mandated that a light and mirror be used to aid in this inspection. The compliance stipulation is that these inspections must be performed at intervals not exceeding 60 hours of time in service following the issuance of the directive on 19 May 1967. This regulation extends across the Commonwealth of Australia, applying uniformly to all entities and persons operating these specific helicopter models within the jurisdiction.

Key Provisions

The Civil Aviation Regulations 1998, specifically under Part 39 - 105, mandate a safety directive concerning Schweizer (Hughes) 269 Series Helicopters (AD/HU 269/19 Amendment 1). This directive requires operators of Models 269A and 269B to conduct a visual inspection of the left and right-hand engine mount drive end hanger assembly, identified by parts numbers 269A8617 and 269A8618, to check for any signs of cracking. The use of a light and a mirror is specified to assist in this inspection. Operators must ensure that these inspections are performed at intervals not exceeding 60 hours of time in service after 19 May 1967. This means that the inspections should be carried out regularly to maintain the integrity and safety of the helicopter's engine mounts. The directive emphasises the importance of timely and thorough inspections to prevent potential mechanical failures, which could compromise flight safety. Under this legislative instrument, operators of the Schweizer (Hughes) 269 Series Helicopters have clear obligations to adhere to the inspection requirements. These include the use of appropriate tools such as a light and mirror, and ensuring that the inspections are completed within the specified time intervals. Failure to comply with these inspection intervals can lead to significant safety risks, and therefore, it is critical that operators maintain strict adherence to the schedule. The Civil Aviation Regulations 1998 do not explicitly state civil or criminal penalties for non-compliance with the specified inspection requirements in this directive. However, the broader regulatory framework under which these regulations operate includes potential consequences for non-compliance with airworthiness directives. Such consequences may include enforcement actions by the Civil Aviation Safety Authority, which could range from fines to the grounding of the aircraft until compliance is achieved. The specific penalties would depend on the nature and severity of the non-compliance, but the overarching aim is to ensure that all safety directives are followed to maintain the highest standards of aviation safety.