Summary
We are adopting a new airworthiness directive (AD) for certain Pratt & Whitney Canada Corp. (P&WC) turboprop engines. This AD requires installing a reinforcement liner to the power turbine (PT) containment ring and, for certain PT containment rings, adding scallops. This AD was prompted by in-service events involving the perforation of engine cases as a result of the liberation of PT blades and the fracture/ displacement of the PT containment ring. We are issuing this AD to prevent uncontained engine failure and damage to the airplane.
Directive Details
AD Number
FAA-2013-1009
Document Number
2014-14955
Type
Rule
Publication Date
July 1, 2014
Effective Date
August 5, 2014
Affected Manufacturer
Pratt & Whitney Canada Corp. Turboprop
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2013-1009
Topics
Official Documents
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