AD/DH114/15 - Top Centre Section Spar Attachment - Inspection and Modification

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Legislation au F2006B08925 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

 


DH114 (Heron) Series Aeroplanes

 

AD/DH114/15  Top Centre Section Spar NK Attachment - Inspection and Modification

Applicability: All models.

 

Requirement:  1. Inspect Channels P/N 14FS2839-42 and Reinforcing Channels P/N 14FS383 and 386 in accordance with Hawker Siddeley Technical News Sheet Heron (114) F.7, Issue 2.

 

2. If found cracked, modify the channels in accordance with Heron Modification No. 792.

 

Compliance: 1. At intervals not exceeding 300 hours time in service after 30 April 1964.

 

2. When Mod. 792 has been incorporated the inspection interval may be extended to 5,000 hours time in service or five years whichever occurs first.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overview

The Civil Aviation Regulations 1998, enacted by the Australian Parliament, aim to ensure the safety of civil aviation within Australia. One specific piece of legislation within this broader regulatory framework is the Airworthiness Directive (AD/DH114/15), which was introduced to address safety issues pertaining to the Heron Series Aeroplanes. This directive mandates inspections and modifications to the top centre section spar, as detailed in Hawker Siddeley Technical News Sheet Heron (114) F.7, Issue 2. The policy objective behind this directive is to ensure that the identified structural components of the Heron aeroplanes are maintained in a safe condition, thus preventing potential in-flight failures and enhancing overall aviation safety. Compliance with these directives is crucial for operators of Heron Series Aeroplanes, requiring inspections at specified intervals and modifications if necessary, to maintain the airworthiness of these aircraft.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, which pertains to the Civil Aviation Safety Authority’s schedule of airworthiness directives for DH114 (Heron) series aeroplanes, applies to all models of these aircraft. This legislative instrument mandates specific maintenance actions to ensure airworthiness, including the inspection and modification of certain structural components, as outlined in the directive AD/DH114/15 regarding the Top Centre Section Spar NK Attachment. The requirements necessitate inspections at intervals not exceeding 300 hours of time in service after a specified date, with the potential to extend the inspection interval under certain conditions. This directive ensures compliance with safety standards across the Commonwealth of Australia and applies to any entity or individual operating a DH114 series aeroplane within Australian jurisdiction. The scope of this regulation is confined to the specified aircraft models and does not extend to other types of aircraft or industries unless explicitly mentioned in related subordinate instruments.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105 concerning the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, includes a directive for the DH114 (Heron) series aeroplanes, particularly AD/DH114/15, which pertains to the Top Centre Section Spar NK Attachment (paragraph 1). This directive mandates that all models of the DH114 series must undergo a specific inspection and, if necessary, a modification process. Under the requirement section (1), it is stipulated that the Channels P/N 14FS2839-42 and Reinforcing Channels P/N 14FS383 and 386 must be inspected according to the Hawker Siddeley Technical News Sheet Heron (114) F.7, Issue 2. If any cracks are detected in these channels during the inspection, they must be modified as per Heron Modification No. 792. The obligations and requirements imposed by this Act are clear and direct. Operators of the DH114 series aeroplanes must ensure that the inspections and any necessary modifications are carried out in accordance with the specified technical news sheet and modification instruction (paragraph 2). The inspections must be conducted at intervals not exceeding 300 hours of time in service after 30 April 1964. Once the modification has been incorporated, the inspection interval can be extended to 5,000 hours of time in service or five years, whichever comes first. This ensures that the aircraft maintain their airworthiness and structural integrity over time. Failure to comply with these directives can result in severe consequences. While the specific offences, penalties, or civil and criminal consequences are not detailed in the text provided, it is reasonable to infer that non-compliance with airworthiness directives can lead to enforcement actions by the Civil Aviation Safety Authority. Such actions could include fines, the grounding of the aircraft until compliance is achieved, or even more severe penalties if the non-compliance results in an aviation incident or accident. The exact penalties would depend on the specific nature and impact of the non-compliance, as well as any applicable sections of the Civil Aviation Act 1988 or other related legislation.

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Aviation Law
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Compliance Obligations
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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.