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AD/AL501/4 - First Stage Compressor Disc
Rolls Royce (Allison) Turbine Engines - Rolls Royce (Allison) Turbine Engines - AL501 Series
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Rolls Royce (Allison) Turbine Engines - AL501 Series
| AD/AL501/4 | First Stage Compressor Disc | 6/2006 |
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| Applicability: | Rolls Royce (formerly ALLISON GAS TURBINE DIVISION) Models 501-D13 and 501-D22 Series Engines fitted with part numbers (P/Ns) 6738651, 6788581, 6789681, 6805651, 6805701, 6844081, and 6829661 first stage compressor wheels with balance weight pin holes in the front lip of the outer rim. |
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| Requirement: | Action in accordance with FAA AD 69-21-03.Note: FAA AD 69-21-03 Amdt 39-862 refers. |
| Compliance: | As detailed in FAA AD 69-21-03 with a revised effective date of 8 June 2006. |
| This Airworthiness Directive becomes effective on 8 June 2006. | |
| Background: | The requirements detailed in this AD are to ensure an adequate life limit for first stage compressor discs. |
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James Coyne
Delegate of the Civil Aviation Safety Authority
28 April 2006