Federal Register / Vol. 78, No. 220 / Thursday, November 14, 2013 / Rules and Regulations 68347 PART 39—AIRWORTHINESS in accordance with Part 2 of the (j) Related Information DIRECTIVES Accomplishment Instructions of Boeing Alert For more information about this AD, Service Bulletin 747–57A2343, dated contact Nathan Weigand, Aerospace ■ 1. The authority citation for part 39 September 12, 2013. If any cylindrical defect Engineer, Airframe Branch, ANM–120S, continues to read as follows: is found, before further flight, do the actions FAA, Seattle Aircraft Certification Office, specified in paragraph (h)(1)(i) or (h)(1)(ii) of 1601 Lind Avenue SW., Renton, WA 98057– this AD. Authority: 49 U.S.C. 106(g), 40113, 44701. 3356; phone: 425–917–6428; fax: 425–917– (i) Do a minimum thickness inspection of 6590; email:
[email protected]. § 39.13 [Amended] the inboard actuator attach fitting to determine minimum wall thickness of the (k) Material Incorporated by Reference ■ 2. The FAA amends § 39.13 by adding actuator fitting assembly, in accordance with (1) The Director of the Federal Register the following new airworthiness Part 3 of the Accomplishment Instructions of approved the incorporation by reference directive (AD): Boeing Alert Service Bulletin 747–57A2343, (IBR) of the service information listed in this dated September 12, 2013. If the minimum 2013–23–03 The Boeing Company: paragraph under 5 U.S.C. 552(a) and 1 CFR thickness of the wall is less than 0.130 inch: Amendment 39–17658; Docket No. part 51. Before further flight, replace the inboard FAA–2013–0871; Directorate Identifier actuator attach fitting of the outboard flap, in (2) You must use this service information 2013–NM–187–AD.