Commonwealth legislation

AD/V2500/8 - High Pressure Turbine Disks

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Commonwealth

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legislative instrument

Plain English Summary

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This directive requires initial and repeated ultrasonic inspections of high‑pressure turbine (HPT) stage 1 and 2 disks on International Aero Engines V2500‑A1 engines, applying the inspection intervals and procedures specified in FAA AD 99‑25‑03. It affects operators of aircraft with V2500‑A1 engines, must be done before the first flight after 1 July 2011 if not already completed, and aims to prevent HPT disk fracture and uncontained engine failure.

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International Aero Engines AG V2500 Seri

International Aero Engines AG V2500 Series

AD/V2500/8	High Pressure Turbine Disks	12/2011

Applicability:	International Aero Engines AG model V2500-A1.
Requirement:	Unless already accomplished, perform the initial ultrasonic inspection of HPT stage 1 and 2 disks specified in FAA AD 99-25-03.Perform the repetitive ultrasonic inspections of HPT stage 1 and 2 disks specified in FAA AD 99-25-03.Note: IAE Service Bulletin No. V2500-ENG-72-0344 refers.
Compliance:	If the initial ultrasonic inspection has not been performed - before first flight after1 July 2011.Perform repetitive inspections on the occasions specified in FAA AD 99-25-03.
	This Airworthiness Directive becomes effective on 24 June 2011.
Background:	FAA AD 99-25-03 was issued to prevent HPT disk fracture which could result in an uncontained engine failure and damage to the aeroplane.

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Glen Steemson
Delegate of the Civil Aviation Safety Authority

14 June 2011

AD/V2500/8

High Pressure Turbine Disks

12/2011

Source text

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

International Aero Engines AG V2500 Seri International Aero Engines AG V2500 Series

International Aero Engines AG V2500 Series

AD/V2500/8	High Pressure Turbine Disks	12/2011

Applicability:	International Aero Engines AG model V2500-A1.
Requirement:	Unless already accomplished, perform the initial ultrasonic inspection of HPT stage 1 and 2 disks specified in FAA AD 99-25-03.Perform the repetitive ultrasonic inspections of HPT stage 1 and 2 disks specified in FAA AD 99-25-03.Note: IAE Service Bulletin No. V2500-ENG-72-0344 refers.
Compliance:	If the initial ultrasonic inspection has not been performed - before first flight after1 July 2011.Perform repetitive inspections on the occasions specified in FAA AD 99-25-03.
	This Airworthiness Directive becomes effective on 24 June 2011.
Background:	FAA AD 99-25-03 was issued to prevent HPT disk fracture which could result in an uncontained engine failure and damage to the aeroplane.

AD/V2500/8 - High Pressure Turbine Disks

Plain English Summary

Deep dive

Current sections

International Aero Engines AG V2500 Series

International Aero Engines AG V2500 Series

AD/V2500/8

AD/V2500/8

High Pressure Turbine Disks

High Pressure Turbine Disks

12/2011

12/2011

Source text

International Aero Engines AG V2500 Seri International Aero Engines AG V2500 Series

International Aero Engines AG V2500 Series

AD/V2500/8 AD/V2500/8

AD/V2500/8

High Pressure Turbine Disks High Pressure Turbine Disks

High Pressure Turbine Disks

12/2011 12/2011

12/2011