Commonwealth legislation

AD/DHC-6/9 - Left and Right Hand Elevators Upper Skin - Modification

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

AD/DHC-6/9 mandates a physical modification to the left and right elevator upper skins on De Havilland DHC‑6 (Twin Otter) aeroplanes with serial numbers 1–81, requiring work per De Havilland Mod. Bulletin 6/1142.

Owners/operators must complete the modification before 1 April 1968 under authority of the Civil Aviation Safety Authority; practical effects include compliance costs, aircraft downtime, and reliance on the manufacturer’s bulletin for technical execution.

JSON API

Deep dive

Want the full deep dive?

Zoe can write the in-depth analysis on top of the summary above: how it works, who it affects and what each part actually does.

Current sections

Direct links to the current provisions in AD/DHC-6/9 - Left and Right Hand Elevators Upper Skin - Modification.

AD/DHC-6/9 - Left and Right Hand Elevators Upper Skin - Modification

meta-content-style-type: text/css meta-content-type: application/xhtml+xml; charset=utf-8 meta-generator: Aspose.Words for .NET 22.10.0

?xml version="1.0" encoding="utf-8" standalone="no"?>

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source DHC-6 (Twin Otter) Series Aeroplanes

AD/DHC-6/9 Left and Right Hand Elevators Upper Skin - Modification

Applicability: All models with S/Nos. 1 to 81.

Document: De Havilland of Canada Mod. Bulletin 6/1142. Compliance: Before 1 April 1968.

1/68

Source text

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