2021-07-08: Main Rotor Mast/Swashplate

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\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: 0 a. Removing Airworthiness Directive (AD) 97-26-02, Amendment 39-10245 (62 FR 65749, December 16, 1997); and 0 b. Adding the following new AD: \n\n\n\n2021-07-08 Airbus Helicopters Deutschland GmbH (Type Certificate Previously Held by Eurocopter Deutschland GmbH and Eurocopter Canada Ltd.): Amendment 39-21485; Docket No. FAA-2020-0696; Product Identifier 2018-SW-019-AD. \n\n(a) Applicability \n\n\n\tThis airworthiness directive (AD) applies to Airbus Helicopters Deutschland GmbH Model BO-105A, BO-105C, BO-105S, BO-105LS A-1, and BO-105LS A-3 helicopters, certificated in any category, with a main rotor (M/R) mastpart number (P/N) 4619 305 032 of M/R mast assembly P/N 4638 205 005, or M/R mast P/N 4639 305 002 of M/R mast assembly P/N 4639 205 017. \n\n\n\tNote 1 to Paragraph (a): M/R mast assembly P/N 4639 205 017 may also contain reinforced M/R mast P/N 4639 305 095, which is not affected by this AD. \n\n(b) Unsafe Condition \n\n\n\tThis AD defines the unsafe condition as cracks in the M/R mast flange (flange). This condition could result in failure of the flange and subsequent loss of control of the helicopter. \n\n(c) Affected ADs \n\n\n\tThis AD replaces AD 97-26-02, Amendment 39-10245 (62 FR 65749, December 16, 1997). \n\n(d) Effective Date \n\n\n\tThis AD becomes effective April 30, 2021. \n\n(e) 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\n\t(f) Required Actions \n\n\n\t(1) Before further flight and thereafter at intervals not to exceed 100 hours time-in-service, visually inspect the flange in the ribbed area for cracks using a 5-power or higher magnifying glass in accordance with paragraphs 2.A.1. and 2.A.2. of the Accomplishment Instructions in Eurocopter Deutschland GmbH Alert Service Bulletin No. ASB-BO 105-10-110, dated August 27, 1997. \n\t(2) If there is a crack, remove from service the cracked M/R mast and replace it with an airworthy M/R mast. \n\n(g) Alternative Methods of Compliance (AMOCs) \n\n\n\t(1) The Manager, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the International Validation Branch, send it to the attention of the person identified in paragraph (h)(1) of this AD. Information may be emailed to: [email protected]. \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(h) Related Information \n\n\n\t(1) For more information about this AD, contact Matt Fuller, AD Program Manager, Operational Safety Branch, Airworthiness Products Section, General Aviation & Rotorcraft Unit, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone 817-222-5110; email [email protected]. \n\t(2) The subject of this AD is addressed in European Aviation Safety Agency (now European Union Aviation Safety Agency) (EASA) AD 2018-0056, dated March 14, 2018; and Transport Canada AD CF-1997- 18R1, dated March 12, 2018. You may view the EASA and Transport Canada ADs on the internet at https://www.regulations.govin Docket No. FAA-2020-0696. \n\n(i) Subject \n\n\n\tJoint Aircraft Service Component (JASC) Code: 6230, Main Rotor Mast/Swashplate \n\n(j) Material Incorporated by Reference \n\n\n\t(1) The Director of the Federal Register approved the incorporation by reference of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. \n\t(2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. \n\t(3) The following service information was approved for IBR on December 31, 1997 (62 FR 65749, December 16, 1997). \n\t(i) Eurocopter Deutshland GmbH Alert Service Bulletin No. ASB-BO 105-10-110, dated August 27, 1997. \n\t(ii) (Reserved) \n\t(4) For service information identified in this AD, contact Airbus Helicopters, 2701 N Forum Drive, Grand Prairie, TX 75052; telephone 972-641-0000 or 800-232-0323; fax 972-641-3775; or at https://www.airbus.com/helicopters/services/technical-support.html. \n\t(5) You may view this service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call 817-222-5110. \n\t(6) You may view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, email [email protected], or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html. \n\n\n\tIssued on March 20, 2021. Gaetano A. Sciortino, Deputy Director for Strategic Initiatives, Compliance & Airworthiness Division, Aircraft Certification Service. (FR Doc. 2021-06205 Filed 3-25-21; 8:45 am) BILLING CODE 4910-13-P