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at the previously mentioned address in DEPARTMENT OF TRANSPORTATION www.regulations.gov by searching for the FOR FURTHER INFORMATION CONTACT and locating Docket No. FAA–2016– section. Federal Aviation Administration 6968; or in person at the Docket Operations Office between 9 a.m. and 5 After consideration of all relevant 14 CFR Part 39 material presented, including the p.m., Monday through Friday, except Federal holidays. The AD docket Board’s recommendation, and other [Docket No. FAA–2016–6968; Directorate contains this AD, any incorporated-by- information, it is found that this rule, as Identifier 2015–SW–020–AD; Amendment 39–18950; AD 2017–14–06] reference service information, the hereinafter set forth, will tend to economic evaluation, any comments RIN 2120–AA64 effectuate the declared policy of the Act. received, and other information. The Pursuant to 5 U.S.C. 553, it is also Airworthiness Directives; Sikorsky street address for the Docket Operations found and determined upon good cause Aircraft Corporation Helicopters (Type Office (phone: 800–647–5527) is U.S. that it is impracticable and contrary to Certificate Previously Held by Department of Transportation, Docket the public interest to give preliminary Schweizer Aircraft Corporation) Operations Office, M–30, West Building notice prior to putting this rule into Ground Floor, Room W12–140, 1200 effect and that good cause exists for not AGENCY: Federal Aviation New Jersey Avenue SE., Washington, postponing the effective date of this rule Administration (FAA), DOT. DC 20590. until 30 days after publication in the ACTION: Final rule. FOR FURTHER INFORMATION CONTACT: Federal Register because: (1) The action SUMMARY: We are superseding Blaine Williams, Aerospace Engineer, decreases the assessment rate for airworthiness directive (AD) 93–17–13 Boston Aircraft Certification Office, merchantable walnuts; (2) handlers are for Schweizer Aircraft Corporation and Engine & Propeller Directorate, 1200 aware of this action, which was Hughes Helicopters, Inc. (now Sikorsky District Avenue, Burlington, unanimously recommended by the Aircraft Corporation) (Sikorsky) Model Massachusetts 01803; telephone (781) Board at a public meeting and is similar TH55A, 269A, 269A–1, 269B, and 269C 238–7161; email blaine.williams@ to other assessment rate actions issued helicopters. AD 93–17–13 required faa.gov. in past years; and (3) this interim rule installing tachometer markings and SUPPLEMENTARY INFORMATION: inspecting the lower coupling driveshaft provides a 60-day comment period, and Discussion all comments timely received will be (driveshaft). This new AD requires considered prior to finalization of this repetitive inspections of the driveshaft We issued a notice of proposed rule. and expands the applicability to include rulemaking (NPRM) to amend 14 CFR Model 269C–1 helicopters. This AD is part 39 to remove AD 93–17–13, List of Subjects in 7 CFR Part 984 prompted by reports of accidents Amendment 39–8684 (58 FR 51770, because of driveshaft failures. The October 5, 1993) and add a new AD. AD Marketing agreements, Nuts, actions of this AD are intended to 93–17–13 applied to Schweizer Aircraft Reporting and recordkeeping prevent the unsafe condition on these Corporation and Hughes Helicopters, requirements, Walnuts. products. Inc. (now Sikorsky) Model TH55A, For the reasons set forth in the DATES: This AD is effective August 25, 269A, 269A–1, 269B, and 269C preamble, 7 CFR part 984 is amended as 2017. helicopters. AD 93–17–13 required follows: The Director of the Federal Register within 30 days or 100 hours time-in- approved the incorporation by reference service (TIS), whichever occurs first and PART 984—WALNUTS GROWN IN of certain documents listed in this AD thereafter every 300 hours TIS, visually CALIFORNIA as of August 25, 2017. inspecting for cracks, machining steps, The Director of the Federal Register manufacturing tool marks, surface ■ 1. The authority citation for part 984 approved the incorporation by reference defects, and lack of cleanup during the production grinding operation. AD 93– continues to read as follows: of a certain other publication listed in this AD as of October 20, 1993 (58 FR 17–13 also required installing engine Authority: 7 U.S.C. 601–674. 51770, October 5, 1993). and rotor tachometer markings and ■ ADDRESSES: For Schweizer or Sikorsky replacing any unairworthy driveshaft 2. Section 984.347 is revised to read before further flight. as follows: service information identified in this final rule, contact Sikorsky Aircraft The NPRM published in the Federal § 984.347 Assessment rate. Corporation, Customer Service Register on January 5, 2017 (82 FR Engineering, 124 Quarry Road, 1267) and was prompted by a safety On and after September 1, 2017, an Trumbull, CT 06611; telephone 1–800– analysis by Sikorsky that determined assessment rate of $0.0400 per Winged–S or 203–416–4299; email wcs_ the initial and recurrent inspection kernelweight pound is established for [email protected]. You intervals and inspection method California merchantable walnuts. may review a copy of the referenced required by AD 93–17–13 were not Dated: July 17, 2017. service information at the FAA, Office adequate to detect all corrosion, pits, nicks, scratches, dents, and cracks. Bruce Summers, of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room Accidents due to driveshaft failures Acting Administrator, Agricultural Marketing 6N–321, Fort Worth, TX 76177. It is also continued to occur after AD 93–17–13 Service. available on the Internet at http:// was issued. Therefore, the NPRM [FR Doc. 2017–15304 Filed 7–20–17; 8:45 am] www.regulations.gov by searching for proposed to require, within 25 hours BILLING CODE 3410–02–P and locating Docket No. FAA–2016– TIS and thereafter at intervals not to 6968. exceed 150 hours TIS, visually inspecting the driveshaft. If there are no Examining the AD Docket cracks, corrosion, or other damage, the You may examine the AD docket on NPRM proposed performing a magnetic the Internet at http:// particle inspection. If there is a crack or

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other damage, the NPRM proposed to operating limits; and prohibiting engine safety in air commerce. This regulation require replacing the driveshaft before declutched operations above 1600 RPM. is within the scope of that authority further flight. The NPRM also proposed This service information is reasonably because it addresses an unsafe condition adding tachometer markings if not available because the interested parties that is likely to exist or develop on previously performed. Expanding the have access to it through their normal products identified in this rulemaking applicability to include Model 269C–1 course of business or by the means action. helicopters was also proposed because identified in the ADDRESSES section. Regulatory Findings these helicopters were not Differences Between This AD and the manufactured when AD 93–17–13 was This AD will not have federalism Service Information issued but have the applicable implications under Executive Order driveshafts installed. Finally, the NPRM The Sikorsky service information calls 13132. This AD will not have a proposed to include specific part- for the initial inspection to be substantial direct effect on the States, on numbered driveshafts to the completed within 180 days or 25 hours the relationship between the national applicability because Sikorsky is TIS. This AD requires that the initial government and the States, or on the developing a new driveshaft that we do inspection to be completed within 25 distribution of power and not expect to be subject to this AD. hours TIS only. The service information responsibilities among the various requires contacting Sikorsky if a certain levels of government. Comments part-numbered driveshaft is installed, For the reasons discussed above, I We gave the public the opportunity to emailing information to Sikorsky, and certify that this AD: participate in developing this AD, but returning damaged parts to Sikorsky; (1) Is not a ‘‘significant regulatory we received no comments on the NPRM. this AD does not. action’’ under Executive Order 12866; (2) Is not a ‘‘significant rule’’ under FAA’s Determination Costs of Compliance DOT Regulatory Policies and Procedures We have reviewed the relevant We estimate that this AD affects 619 (44 FR 11034, February 26, 1979); information and determined that an helicopters of U.S. Registry and that (3) Will not affect intrastate aviation unsafe condition exists and is likely to labor costs average $85 per work hour. in Alaska to the extent that it justifies exist or develop on other products of Based on these estimates, we expect the making a regulatory distinction; and these same type designs and that air following costs: (4) Will not have a significant safety and the public interest require • We estimate that the visual and economic impact, positive or negative, adopting the AD requirements as magnetic particle inspections of the on a substantial number of small entities proposed. driveshaft requires 11 work hours for a under the criteria of the Regulatory cost of $935 per helicopter and $578,765 Flexibility Act. Interim Action for the U.S. fleet per inspection cycle. We prepared an economic evaluation We consider this AD to be an interim • Replacing the driveshaft, if needed, of the estimated costs to comply with action. The design approval holder is costs about $4,574 for parts. No this AD and placed it in the AD docket. developing a replacement driveshaft additional labor costs are necessary. List of Subjects in 14 CFR Part 39 that will address the unsafe condition • Installing engine and rotor identified in this AD. Once the tachometer markings requires 0.5 work- Air transportation, Aircraft, Aviation replacement driveshaft is developed, hour for a labor cost of about $43. The safety, Incorporation by reference, approved, and available, we might cost of parts is minimal. Safety. consider additional rulemaking. Interim Action Adoption of the Amendment Related Service Information Under 1 We consider this AD to be an interim Accordingly, under the authority CFR Part 51 action. The design approval holder is delegated to me by the Administrator, We reviewed Sikorsky 269C developing a replacement driveshaft the FAA amends 14 CFR part 39 as Helicopter Alert Service Bulletin B–307, that will address the unsafe condition follows: Basic Issue, dated December 18, 2014, identified in this AD. Once the PART 39—AIRWORTHINESS and Sikorsky 269C–1 Helicopter Alert replacement driveshaft is developed, DIRECTIVES Service Bulletin C1B–043, Basic Issue, approved and available, we might dated December 18, 2014 (ASBs). The consider additional rulemaking. ■ 1. The authority citation for part 39 ASBs call for a one-time visual and continues to read as follows: magnetic particle inspection of the Authority for This Rulemaking driveshaft and driveshaft assembly for Title 49 of the United States Code Authority: 49 U.S.C. 106(g), 40113, 44701. damage. The ASBs advise that the specifies the FAA’s authority to issue § 39.13 [Amended] driveshaft be sent to Sikorsky and rules on aviation safety. Subtitle I, ■ replaced if damaged. The inspection is section 106, describes the authority of 2. The FAA amends § 39.13 by to be accomplished within 25 hours TIS the FAA Administrator. Subtitle VII: removing Airworthiness Directive (AD) or within 180 days from the ASBs’ issue Aviation Programs, describes in more 93–17–13, Amendment 39–8684 (58 FR date, whichever comes first. Sikorsky detail the scope of the Agency’s 51770, October 5, 1993) and adding the has since revised its maintenance authority. following new AD: manual to incorporate these inspections We are issuing this rulemaking under 2017–14–06 Sikorsky Aircraft Corporation every 150 hours TIS. the authority described in Subtitle VII, (Type Certificate Previously Held By We also reviewed Schweizer Aircraft Part A, Subpart III, Section 44701: Schweizer Aircraft Corporation): Service Bulletin B–257.1, dated May 21, ‘‘General requirements.’’ Under that Amendment 39–18950; Docket No. 1993 (ASB B–257.1). ASB B–257.1 calls section, Congress charges the FAA with FAA–2016–6968; Directorate Identifier 2015–SW–020–AD. for a one-time inspection to look for promoting safe flight of civil aircraft in drive-shaft defects; installing air commerce by prescribing regulations (a) Applicability declutched limit markings on the for practices, methods, and procedures This AD applies to Model TH55A, 269A, engine/rotor tachometer to reinforce the Administrator finds necessary for 269A–1, 269B, 269C and 269C–1 helicopters,

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with a lower coupling driveshaft (driveshaft) AMOCs for this AD. Send your proposal to: www.archives.gov/federal-register/cfr/ibr- part number (P/N) 269–5412, 269A5504, Blaine Williams, Aerospace Engineer, Boston locations.html. 269A5504–003, 269A5504–005, 269A5559, Aircraft Certification Office, Engine & Issued in Fort Worth, Texas, on July 3, or 269A5559–003 installed, certificated in Propeller Directorate, 12 New England 2017. any category. Executive Park, Burlington, Massachusetts 01803; telephone (781) 238–7161; email Scott A. Horn, (b) Unsafe Condition [email protected]. Acting Manager, Rotorcraft Directorate, This AD defines the unsafe condition as (2) For operations conducted under a 14 Aircraft Certification Service. failure of a driveshaft. This condition could CFR part 119 operating certificate or under [FR Doc. 2017–15032 Filed 7–20–17; 8:45 am] result in loss of power to the rotor system 14 CFR part 91, subpart K, we suggest that BILLING CODE 4910–13–P and subsequent loss of helicopter control. you notify your principal inspector, or (c) Affected ADs lacking a principal inspector, the manager of the local flight standards district office or DEPARTMENT OF TRANSPORTATION This AD supersedes AD 93–17–13, certificate holding district office before Amendment 39–8684 (58 FR 51770, October operating any aircraft complying with this 5, 1993). Federal Aviation Administration AD through an AMOC. (d) Effective Date (i) Additional Information 14 CFR Part 39 This AD becomes effective August 25, For Schweizer or Sikorsky service 2017. [Docket No. FAA–2016–5443; Directorate information identified in this AD, contact Identifier 2016–SW–021–AD; Amendment (e) Compliance Sikorsky Aircraft Corporation, Customer 39–18884; AD 2017–10–10] You are responsible for performing each Service Engineering, 124 Quarry Road, RIN 2120–AA64 action required by this AD within the Trumbull, CT 06611; telephone 1–800– Winged–S or 203–416–4299; email wcs_cust_ specified compliance time unless it has _ already been accomplished prior to that time. service [email protected]. You may Airworthiness Directives; Sikorsky review a copy of information at the FAA, Aircraft Corporation Helicopters (f) Required Actions Office of the Regional Counsel, Southwest AGENCY: (1) Within 25 hours time-in-service (TIS), Region, 10101 Hillwood Pkwy., Room 6N– Federal Aviation install engine and rotor tachometer markings 321, Fort Worth, TX 76177. Administration (FAA), DOT. in accordance with Part II of Schweizer (j) Subject ACTION: Final rule. Aircraft Service Bulletin B–257.1, dated May 21, 1993. Joint Aircraft Service Component (JASC) SUMMARY: We are adopting a new (2) Within 25 hours TIS and thereafter at Code: 6300, Main Rotor Drive System. airworthiness directive (AD) for intervals not to exceed 150 hours TIS: (k) Material Incorporated by Reference Sikorsky Aircraft Corporation (Sikorsky) (i) Visually inspect the driveshaft for Model S–92A helicopters. This AD corrosion, a pit, a nick, a scratch, a dent, and (1) The Director of the Federal Register approved the incorporation by reference of requires installing an engine flame a crack in accordance with the detector bracket assembly and harness Accomplishment Instructions, paragraph the service information listed in this 3.B.(1) through 3.B.(6) of Sikorsky 269C paragraph under 5 U.S.C. 552(a) and 1 CFR assembly. This AD was prompted by Helicopter Alert Service Bulletin B–307, part 51. reports of false fire warnings. The Basic Issue, dated December 18, 2014 (269C (2) You must use this service information actions of this AD are intended to ASB), or Sikorsky 269C–1 Helicopter Alert as applicable to do the actions required by prevent an unsafe condition on these Service Bulletin C1B–043, Basic Issue, dated this AD, unless the AD specifies otherwise. products. December 18, 2014 (269C–1 ASB), whichever (3) The following service information was is applicable for your model helicopter, approved for IBR on August 25, 2017. DATES: This AD is effective August 25, except we do not require that you use a (i) Sikorsky 269C Helicopter Alert Service 2017. Sikorsky recommended vendor list. If there is Bulletin B–307, Basic Issue, dated December The Director of the Federal Register any corrosion, a pit, a nick, a scratch, a dent, 18, 2014. approved the incorporation by reference or a crack, replace the driveshaft before (ii) Sikorsky 269C–1 Helicopter Alert of certain documents listed in this AD further flight. Service Bulletin C1B–043, Basic Issue, dated as of August 25, 2017. (ii) If there is no corrosion and no pits, December 18, 2014. ADDRESSES: For service information nicks, scratches, dents, and cracks, magnetic (4) The following service information was particle inspect the driveshaft for a crack in approved for IBR on October 20, 1993 (58 FR identified in this final rule, contact accordance with paragraph 3.C.(1) of the 51770, October 5, 1993). Sikorsky Aircraft Corporation, Customer 269C ASB or 269C–1 ASB, whichever is (i) Schweizer Aircraft Corporation Service Service Engineering, 124 Quarry Road, applicable for your model helicopter. This Bulletin B–257.1, dated May 21, 1993. Trumbull, CT 06611; telephone 1–800– magnetic particle inspection must be (ii) Reserved. Winged–S or 203–416–4299; email wcs_ performed by a Level II or higher technician (5) For Schweizer or Sikorsky service [email protected]. You with the National Aerospace Standard 410 or information identified in this AD, contact may review a copy of the referenced equivalent certification who has performed a Sikorsky Aircraft Corporation, Customer Service Engineering, 124 Quarry Road, service information at the FAA, Office magnetic particle inspection within the last of the Regional Counsel, Southwest 12 months. If there is a crack, replace the Trumbull, CT 06611; telephone 1–800– _ _ driveshaft before further flight. Winged–S or 203–416–4299; email wcs cust Region, 10101 Hillwood Pkwy., Room [email protected]. 6N–321, Fort Worth, TX 76177. It is also (g) Credit for Actions Previously Completed (6) You may view this service information available on the Internet at http:// Compliance with paragraph (a)(1) of AD at FAA, Office of the Regional Counsel, www.regulations.gov by searching for 93–17–13, Amendment 39–8684 (58 FR Southwest Region, 10101 Hillwood Pkwy., and locating Docket No. FAA–2016– 51770, October 5, 1993) before the effective Room 6N–321, Fort Worth, TX 76177. For 5443. date of this AD is considered acceptable for information on the availability of this compliance with the actions specified in material at the FAA, call (817) 222–5110. Examining the AD Docket paragraph (f)(1) of this AD. (7) You may view this service information that is incorporated by reference at the You may examine the AD docket on (h) Alternative Methods of Compliance National Archives and Records the Internet at http:// (AMOCs) Administration (NARA). For information on www.regulations.gov by searching for (1) The Manager, Boston Aircraft the availability of this material at NARA, call and locating Docket No. FAA–2016– Certification Office, FAA, may approve (202) 741–6030, or go to: http:// 5443; or in person at the Docket

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