Summary
We are adopting a new airworthiness directive (AD) for certain Rolls-Royce Deutschland Ltd & Co KG (RRD) models Tay 620-15 and Tay 650-15 turbofan engines. This AD was prompted by RRD recalculating the Declared Safe Cyclic Life (DSCL) for certain low-pressure compressor (LPC) rotor disc assemblies operating to the Plan D Flight Mission. This AD requires removing the affected LPC rotor disc assemblies at a new lower recalculated DSCL. We are issuing this AD to prevent failure of the LPC rotor disc assembly, uncontained engine failure, and damage to the airplane.
Directive Details
AD Number
FAA-2012-1167
Document Number
2013-06115
Type
Rule
Publication Date
March 20, 2013
Effective Date
April 24, 2013
Affected Manufacturer
Rolls-Royce Deutschland Ltd & Co KG Turbofan
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2012-1167
Topics
Official Documents
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