Summary
We are adopting a new airworthiness directive (AD) for certain serial number (S/N) Rolls-Royce Deutschland Ltd & Co KG (RRD) TAY 620- 15 turbofan engines. This AD requires initial and repetitive general inspections and ultrasonic inspections (UI) of low-pressure compressor (LPC) fan blades for cracks. If any fan blade is found cracked, this AD requires replacement of the LPC fan blade set and the LPC fan disc. This AD was prompted by a report of an LPC fan blade separation. We are issuing this AD to detect cracks in the LPC fan blades, which could lead to uncontained failure of the LPC fan blades and LPC fan disc, and damage to the airplane.
Directive Details
AD Number
FAA-2012-1056
Document Number
2012-28638
Type
Rule
Publication Date
November 29, 2012
Effective Date
December 14, 2012
Affected Manufacturer
Rolls-Royce Deutschland Ltd & Co KG Turbofan
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2012-1056
Topics
Official Documents
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