Commonwealth legislation

AD/RB211/24 Amdt 1 - HP Turbine Disc - Inspection

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

4/10 complexity

This AD requires operators of Rolls‑Royce RB211‑535 engines to perform an eddy‑current inspection of high‑pressure turbine (HPT) discs following Rolls‑Royce Service Bulletin RB.211‑72‑C817 Revision 2. (Applicability & Requirement)

The amendment shortens the inspection window and extends applicability to discs manufactured 1989–1999 to detect machining faults or damage from cleaning; operators and maintenance organisations must schedule inspections and any repairs at their cost.

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Current sections

Direct links to the current provisions in AD/RB211/24 Amdt 1 - HP Turbine Disc - Inspection.

AD/RB211/24 Amdt 1 - HP Turbine Disc - Inspection

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source
View image in the official source
Rolls Royce Turbine Engines - RB211 Series

AIRWORTHINESS DIRECTIVE

View image in the official source

View image in the official source
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/RB211/24 and issues the following AD under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

AD/RB211/24

Amdt 1

HP Turbine Disc - Inspection 3/2001

Applicability: RB211-535 engines as detailed in Rolls Royce Service Bulletin RB.211-72-C817 Revision 2.

Requirement: Inspect high pressure turbine (HPT) discs in accordance with Rolls Royce Service Bulletin RB.211-72-C817 Revision 2.

Note: UK CAA AD 003-12-99 refers.

Compliance: As detailed in the requirement document.

This amendment becomes effective on 22 March 2001.

Background: This Directive was raised to mandate a mid life eddy current inspection of suspect HP turbine discs to detect possible machining faults in the disc air cooling holes. This amendment reflects the manufacturer’s latest revision to the Requirement document. The revision, in part, reduces the compliance time for inspection and increases the number of discs affected to all discs manufactured between 1989 and 1999. The revision also responds to evidence of disc cooling air holes having been damaged by inappropriate cleaning during overhaul.

The original issue of this Airworthiness Directive became effective on 10 August 2000.

Signature of Eugene Paul Holzapfel Delegate of the Civil Aviation Safety Authority

Eugene Paul Holzapfel

Delegate of the Civil Aviation Safety Authority 9 February 2001

View image in the official source

The above AD is notified in the Commonwealth of Australia Gazette on 21 February 2001.

Source text

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

1 AD/RB211/24 Amdt 1 - HP Turbine Disc - Inspection

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

Rolls Royce Turbine Engines - RB211 Series

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/RB211/24 and issues the following AD under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

AD/RB211/24

Amdt 1

HP Turbine Disc - Inspection 3/2001

Applicability: RB211-535 engines as detailed in Rolls Royce Service Bulletin RB.211-72-C817 Revision 2.

Requirement: Inspect high pressure turbine (HPT) discs in accordance with Rolls Royce Service Bulletin RB.211-72-C817 Revision 2.

Note: UK CAA AD 003-12-99 refers.

Compliance: As detailed in the requirement document.

This amendment becomes effective on 22 March 2001.

The original issue of this Airworthiness Directive became effective on 10 August 2000.

Eugene Paul Holzapfel

Delegate of the Civil Aviation Safety Authority 9 February 2001

The above AD is notified in the Commonwealth of Australia Gazette on 21 February 2001.