Commonwealth legislation

AD/ARRIEL/4 - Turbine Case Identification Plate Removal

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This AD requires removal of the turbine-module identification plate on Turbomeca Arriel Series I engines to permit inspection of the turbine case for corrosion following a reported case failure. It is mandatory for affected operators and delegates the inspection and corrective- action procedures to Bureau Veritas Directive 86‑29(B) and Turbomeca SB 72‑292‑0093, with operators bearing labour, downtime and repair costs.

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AD/ARRIEL/4 - Turbine Case Identification Plate Removal

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Turbomeca Turbine Engines - Arriel Series

AD/ARRIEL/4 Turbine Case Identification Plate Removal 8/86

Applicability: All Arriel Series I engines.

Requirement: Action in accordance with Bureau Veritas Directive 86-29(B).

Reference Document - Turbomeca S.B. Arriel No. 72-292-0093.

Compliance: In accordance with Requirement Document.

Background: This Directive has been issued to require compliance with Bureau Veritas Directive 86-29(B). The Directive requires removal of the turbine module identification plate to allow inspection of the turbine case for corrosion. This requirement has become necessary following blow-out of a turbine case in service with a reported loss of power.

Source text

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