Commonwealth legislation

AD/CF6/28 - CF6-80C2 Stage 1 High Pressure Turbine Disc Inspection

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This AD requires operators of General Electric CF6-80C2 engines to inspect the stage‑1 high‑pressure turbine disc rim bolt holes for cracks and replace any cracked parts, following the technical steps in FAA AD 94‑06‑03 (with GE Service Bulletin No. 72‑614 Rev 1 and AO‑Wire 92‑80C‑16 as guidance). Effective 27 June 1994, it aims to prevent uncontained HPT failures and shifts inspection and replacement costs to operators.

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AD/CF6/28 - CF6-80C2 Stage 1 High Pressure Turbine Disc Inspection

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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 General Electric Turbine Engines - CF6 Series

AD/CF6/28 CF6-80C2 Stage 1 High Pressure Turbine Disc Inspection

7/94

Applicability: CF6-80C2 Engines.

Requirement: Action in accordance with the technical requirements of FAA AD 94-06-03.

Note: General Electric Service Bulletin No 72-614 Revision 1 and All Operator’s Wire 92-80C-16 of 22 April 1992 refer.

Compliance: This directive is effective from 27 Jun 1994.

Background: This directive requires an inspection for cracks in the stage 1 high pressure turbine disc rim bolt holes and replacement as necessary with serviceable parts.

It originates from an uncontained stage 1 high pressure turbine failure.

Source text

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