Commonwealth legislation

AD/F27/121 - Flight Controls - Elevator Trim System

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

4/10 complexity

This directive mandates retrofit modifications to the elevator and trim-tab systems of specified Fokker F27 serial numbers, adopting Netherlands AD BLA 90‑106 (effective 5 Oct 1990) as the required technical standard and cross‑referencing Fokker SB F27/27‑130. Affected Australian owners/operators must arrange and fund the work, follow the referenced documents exactly, and may incur downtime and parts/maintenance costs to meet the mandatory compliance.

JSON API Aviation / CASA instruments

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/F27/121 - Flight Controls - Elevator Trim System.

AD/F27/121 - Flight Controls - Elevator Trim System

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 Fokker F27 Series Aeroplanes

AD/F27/121 Flight Controls - Elevator Trim System 2/91

Applicability: F27 aircraft with S/No’s 10102 to 10684 inclusive, 10686, 10687 and 10689 to 10692 inclusive.

Requirement: Action in accordance with the technical requirements of Netherlands AD BLA 90-106.

Note: Fokker SB F27/27-130 refers.

Compliance: As specified in the Requirement document with effective date 5 October 1990.

Background: Country of origin AD. To modify the elevator and trim tab systems so that they are considerably more resistant to flutter and easier to maintain.

Source text

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