2020-14-01: Main Rotor

Adoption of the Amendment \n\n\n\tAccordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: \n\n((Page 40586)) \n\nPART 39--AIRWORTHINESS DIRECTIVES \n\n0 1. The authority citation for part 39 continues to read as follows: \n\n\n\tAuthority: 49 U.S.C. 106(g), 40113, 44701. \n\n\n\nSec. 39.13 (Amended) \n\n0 2. The FAA amends Sec. 39.13 by adding the following new airworthiness directive (AD): \n\n2020-14-01 Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.): Amendment 39-21155; Docket No. FAA- 2020-0171; Product Identifier 2018-SW-028-AD. \n\n(a) Applicability \n\n\n\tThis AD applies to Bell Textron Inc. (Bell) Model 214ST helicopters, certificated in any category, with a spindle to yoke bolt (bolt) part number (P/N) 214-010-262-103 and serial number (S/ N) BH179163, BH179164, BH179169, BH179170, BH179171, BH179175, BH179176, BH179178, BH224783, BH224751, BH224756, BH224764, BH224765, BH383851, BH383853, BH383855, BH383856, BH383857, BH383858, BH383860, BH383861, BH383862, BH383864, BH383865, BH383868, BH383872, BH383873, BH383878, or BH383879 installed. \n\n(b) Unsafe Condition \n\n\n\tThis AD was prompted by the discovery that bolts have nonconforming external thread root radii. The unsafe condition, if not addressed, could result in the spindle separating from the yoke and subsequent loss of control of the helicopter. \n\n(c) Effective Date \n\n\n\tThis AD is effective August 11, 2020. \n\n(d) Compliance \n\n\n\tYou are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time. \n\n(e) Required Actions \n\n\n\t(1) Within 25 hours time-in-service, remove from service each bolt listed in paragraph (a) of this AD. \n\t(2) After the effective date of this AD, do not install on any helicopter a bolt with a P/N and S/N listed in paragraph (a) of this AD. \n\n(f) Alternative Methods of Compliance (AMOCs) \n\n\n\t(1) The Manager, DSCO Branch, FAA, may approve AMOCs for this AD. Send your proposal to Haytham Alaidy, Aviation Safety Engineer, DSCO Branch, FAA, 10101 Hillwood Pkwy, Fort Worth, TX 76177; phone: 817-222-5224; fax: 817-222-4960; email: haytham.alaidy@faa.gov. \n\t(2) For operations conducted under a 14 CFR part 119 operating certificate or under 14 CFR part 91, subpart K, the FAA suggests that you notify your principal inspector, or lacking a principal inspector, the manager of the local flight standards district office or certificate holding district office before operating any aircraft complying with this AD through an AMOC. \n\n(g) Related Information \n\n\n\tBell Helicopter Textron Alert Service Bulletin 214ST-18-93 Revision A, dated April 17, 2019, which is not incorporated by reference, contains additional information about the subject of this AD. For service information identified in this AD, contact Bell Textron Inc., P.O. Box 482, Fort Worth, TX 76101; telephone 817-280- 3391; fax 817-280-6466; or at https://www.bellcustomer.com. You may view a copy of information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, Fort Worth, TX 76177. \n\n(h) Subject \n\n\n\tJoint Aircraft Service Component (JASC) Code: 6200, Main Rotor. \n\n\n\tIssued on June 23, 2020. Gaetano A. Sciortino, Deputy Director for Strategic Initiatives, Compliance & Airworthiness Division, Aircraft Certification Service. (FR Doc. 2020-14210 Filed 7-6-20; 8:45 am) BILLING CODE 4910-13-P