Commonwealth legislation

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

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Commonwealth

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legislative instrument

Plain English Summary

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Owners and operators of DH114 (Heron) aircraft must inspect specified top centre‑section spar channels for cracking per Hawker Siddeley TNS Heron F.7 Issue 2, and if cracks are found, modify them per Heron Mod. 792. Inspections are required every 300 flight hours until Mod. 792 is embodied, after which the interval extends to 5,000 hours or five years. This imposes recurring inspection costs and a one‑off modification incentive.

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

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source 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.

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.

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.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.