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AD/JT8D/34 Amdt 1 - 4th Stage LPT Hub Inspection
Pratt and Whitney Turbine Engines - JT8DPratt and Whitney Turbine Engines - JT8D Series
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Pratt and Whitney Turbine Engines - JT8D Series
| AD/JT8D/34 Amdt 1 | 4th Stage LPT Hub Inspection | 7/2005 |
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| Applicability: | Pratt & Whitney (PW) Models JT8D-1, -1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, -17, and -17R turbofan engines, as identified in FAA Airworthiness Directive (AD)97-19-12 Amendment 39-10133. |
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| Requirement: | To prevent 4th stage Low Pressure Turbine (LPT) blade failure due to the hub cracking, comply with the Requirements of FAA AD (AD) 97-19-12 Amendment39-10133.Note: FAA AD 97-19-12 Amendment 39-10133 refers. |
| Compliance: | Unless previously accomplished, as per compliance schedule of the Requirement Document. |
| This Amendment becomes effective on 7 July 2005. | |
| Background: | There has been a report of an uncontained 4th stage LPT blade release due to the hub cracking. Such an event can result in an uncontained engine failure and damage to the aircraft. The actions specified by this AD are intended to address the unsafe condition identified above.The current amendment deletes reference to the manufacturer’s document and refers to the FAA AD as part of the harmonisation with the engine certificating Authority requirements.Original issue of this Directive became effective on 29 January 1998. |
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James Coyne
Delegate of the Civil Aviation Safety Authority
25 May 2005