2012-24-01: LPC fan blades

Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: PART 39--AIRWORTHINESS DIRECTIVES 0 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. Sec. 39.13 [Amended] 0 2. The FAA amends Sec. 39.13 by adding the following new AD: 2012-24-01 Rolls-Royce Deutschland Ltd & Co KG (formerly Rolls-Royce plc): Amendment 39-17271; Docket No. FAA-2012-1056; Directorate Identifier 2012-NE-32-AD. (a) Effective Date This airworthiness directive (AD) becomes effective December 14, 2012. (b) Affected ADs None. (c) Applicability This AD applies to Rolls-Royce Deutschland Ltd & Co KG (RRD) TAY 620-15 engines, serial numbers 17054, 17085, 17088, 17107, and 17166. [[Page 71087]] (d) Reason This AD was prompted by a report of a low-pressure compressor (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. (e) Actions and Compliance Unless already done, do the following actions: (1) Before further flight after the effective date of this AD, perform a visual inspection and ultrasonic inspection of the LPC fan blades to determine general condition and/or the presence of cracks. (2) Thereafter, perform the inspections specified in paragraph (e)(1) of this AD within every additional 1,500 flight hours (FHs), but not fewer than 1,000 FHs. (3) If any fan blade is found cracked, replace the LPC fan blade set and the LPC fan disc before further flight. (f) Terminating Action Replacing the LPC fan blade set and the LPC fan disc is terminating action to the repetitive inspections required by this AD. (g) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office,FAA, may approve AMOCs to this AD. Use the procedures found in 14 CFR 39.19 to make your request. (h) Related Information (1) For more information about this AD, contact Frederick Zink, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; email: [email protected]; phone: 781-238-7779; fax: 781- 238-7199. (2) Refer to European Aviation Safety Agency AD 2012-0185-E, dated September 12, 2012, and RRD Alert Service Bulletin TAY-72- A1775, Revision 1, dated September 12, 2012, for related information. (3) For service information identified in this AD, contact Rolls-Royce Deutschland Ltd & Co KG, Eschenweg 11, Dahlewitz, 15827 Blankenfelde-Mahlow, Germany; telephone: 49 0 33-7086-1944; fax: 49 0 33-7086-3276. (4) You may view this service information at the FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA. For information on the availability of thismaterial at the FAA, call 781-238-7125. (i) Material Incorporated by Reference None.