Commonwealth legislation

AD/BEECH 76/10 Amdt 2 - Engine Mount Support Structure

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

4/10 complexity

This Directive requires owners/operators of all Beechcraft 76 (Duchess) aircraft to visually inspect engine mount channels P/N 105-980000‑19, -21, -23, -25 for cracks adjacent to the anchor nut, and to inspect/repair associated keel structure if cracks are found. Compliance is within 100 hours’ time‑in‑service after 30 April 1984 or at the next maintenance‑release inspection, and thereafter every 100 hours. Repairs must follow a scheme acceptable to the Civil Aviation Safety Authority; Beechcraft SB No 2018 supplies inspection plates and supersedes Service Instruction No 1237. Costs fall to operators.

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/BEECH 76/10 Amdt 2 - Engine Mount Support Structure.

AD/BEECH 76/10 Amdt 2 - Engine Mount Support Structure

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 Beechcraft 76 (Duchess) Series Aeroplanes

AD/BEECH 76/10

Amdt 2

Applicability: All models.

Engine Mount Support Structure 2/91

Requirement: Visually inspect the engine mount channels P/Nos. 105-980000 -19, -21, -23, -25 for cracks in the area adjacent to the anchor nut securing the engine mount bolt.

Note 1: If mount channel is cracked, visually inspect the associated keel and structure for cracks and structural distress.

Note 2: Defective mount channels and associated structure are to be repaired to a scheme acceptable to the Authority.

Note 3: Beechcraft SB No 2018 introduces a kit to provide inspection plates to facilitate the engine mount/nacelle channel inspection.

Compliance: Within 100 hours’ time in service after 30 April 1984, or at the next scheduled inspection for Maintenance Release issue after 30 April 1984, whichever occurs first and thereafter at intervals not exceeding 100 hours’ time in service.

Background: This Directive was raised in issue to include a recurring inspection due to reports of engine mount channel failure. Further defects have been reported since the initial one time inspection.

This amendment introduces SB No 2018 which supersedes and cancels Beechcraft Service Instruction No 1237.

Source text

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