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Federal Register/Vol. 83, No. 89/Tuesday, May 8, 2018/Proposed

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Federal Register/Vol. 83, No. 89/Tuesday, May 8, 2018/Proposed 20740 Federal Register / Vol. 83, No. 89 / Tuesday, May 8, 2018 / Proposed Rules (c) From subsection (e)(1) (Relevancy and DEPARTMENT OF TRANSPORTATION www.regulations.gov by searching for Necessity of Information) because in the and locating Docket No. FAA–2018– course of investigations into potential Federal Aviation Administration 0327; or in person at Docket Operations violations of federal law, the accuracy of between 9 a.m. and 5 p.m., Monday information obtained or introduced 14 CFR Part 39 through Friday, except Federal holidays. occasionally may be unclear, or the The AD docket contains this NPRM, the information may not be strictly relevant or [Docket No. FAA–2018–0327; Product Identifier 2018–CE–001–AD] regulatory evaluation, any comments necessary to a specific investigation. In the received, and other information. The interests of effective law enforcement, it is RIN 2120–AA64 street address for Docket Operations appropriate to retain all information that may aid in establishing patterns of unlawful Airworthiness Directives; Learjet, Inc. (phone: 800–647–5527) is listed above. activity. Airplanes Comments will be available in the AD (d) From subsection (e)(2) (Collection of docket shortly after receipt. Information from Individuals) because AGENCY: Federal Aviation FOR FURTHER INFORMATION CONTACT: Tara requiring that information be collected from Administration (FAA), DOT. Shawn, Aerospace Engineer, Wichita the subject of an investigation would alert the ACTION: Notice of proposed rulemaking ACO Branch, 1801 Airport Road, Room subject to the nature or existence of the (NPRM). 100, Wichita, Kansas 67209; telephone: investigation, thereby interfering with that (316) 946–4141; fax: (316) 946–4107; investigation and related law enforcement SUMMARY: We propose to adopt a new email: [email protected] or Wichita- activities. airworthiness directive (AD) for certain [email protected]. (e) From subsection (e)(3) (Notice to Learjet, Inc. Models 28, 29, 31, 31A, 35, Subjects) because providing such detailed 35A, 36, 36A, 55, 55B, 55C, and 60 SUPPLEMENTARY INFORMATION: information could impede law enforcement airplanes. This proposed AD was Comments Invited by compromising the existence of a prompted by fatigue cracks initiating in confidential investigation or reveal the the flap support structure due to We invite you to send any written identity of witnesses or confidential repetitive flap loads, which has caused relevant data, views, or arguments about informants. this proposal. Send your comments to (f) From subsections (e)(4)(G), (e)(4)(H), flap nose roller support bracket failure. an address listed under the ADDRESSES (e)(4)(I), (Agency Requirements) and (f) This proposed AD would require section. Include ‘‘Docket No. FAA– (Agency Rules), because portions of this replacement of the flap nose roller system are exempt from the individual access fitting, nose roller support bracket, and 2018–0327; Product Identifier 2018–CE– provisions of subsection (d) for the reasons adjacent rib support structure with more 001–AD’’ at the beginning of your noted above, and therefore DHS is not robust components. We are proposing comments. We specifically invite required to establish requirements, rules, or this AD to address the unsafe condition comments on the overall regulatory, procedures with respect to such access. on these products. economic, environmental, and energy Providing notice to individuals with respect DATES: We must receive comments on aspects of this NPRM. We will consider to existence of records pertaining to them in this proposed AD by June 22, 2018. all comments received by the closing the system of records or otherwise setting up date and may amend this NPRM ADDRESSES: procedures pursuant to which individuals You may send comments, because of those comments. using the procedures found in 14 CFR may access and view records pertaining to We will post all comments we themselves in the system would undermine 11.43 and 11.45, by any of the following methods: receive, without change, to http:// investigative efforts and reveal the identities www.regulations.gov, including any of witnesses, and potential witnesses, and • Federal eRulemaking Portal: Go to confidential informants. http://www.regulations.gov. Follow the personal information you provide. We (g) From subsection (e)(5) (Collection of instructions for submitting comments. will also post a report summarizing each Information) because with the collection of • Fax: 202–493–2251. substantive verbal contact we receive information for law enforcement purposes, it • Mail: U.S. Department of about this NPRM. is impossible to determine in advance what Transportation, Docket Operations, M– Discussion information is accurate, relevant, timely, and 30, West Building Ground Floor, Room complete. Compliance with subsection (e)(5) W12–140, 1200 New Jersey Avenue SE, We received a report of skewed flap would preclude DHS agents from using their Washington, DC 20590. and aileron binding due to fatigue investigative training and exercise of good • Hand Delivery: Deliver to Mail cracks in the flap support structure judgment to both conduct and report on address above between 9 a.m. and 5 caused by repetitive flap loads on a investigations. p.m., Monday through Friday, except Learjet, Inc. Model 31A. As of June (h) From subsection (e)(8) (Notice on 2017, cracks in the flap support Individuals) because compliance would Federal holidays. For service information identified in structure were reported (due to Alert interfere with DHS’s ability to obtain, serve, Service Bulletins published in March and issue subpoenas, warrants, and other law this NPRM, contact Learjet, Inc., One 2017) on Models 31, 31A, 35A, 55, and enforcement mechanisms that may be filed Learjet Way, Wichita, Kansas 67209; under seal and could result in disclosure of telephone: 316–946–2000; email: ac.ict@ 60 airplanes. Repetitive flap loads occur investigative techniques, procedures, and aero.bombardier.com; internet: https:// on all models identified by this evidence. www.bombardier.com. You may view proposed AD. Failure of the flap nose (i) From subsection (g) (Civil Remedies) to this service information at the FAA, roller support bracket allows skewed the extent that the system is exempt from Policy and Innovation Division, 901 flap and aileron binding, which can other specific subsections of the Privacy Act. Locust, Kansas City, Missouri 64106. cause loss of roll control on approach. * * * * * For information on the availability of This condition, if not addressed, could result in loss of control. Philip S. Kaplan this material at the FAA, call (816) 329– 4148. Although there have been no reports Chief Privacy Officer, Department of of cracks on the Models 28, 29, 35, 36, Homeland Security. Examining the AD Docket 36A, 55B, and 55C airplanes, these [FR Doc. 2018–09906 Filed 5–7–18; 8:45 am] You may examine the AD docket on airplanes do incorporate the same BILLING CODE 9111–28–P the internet at http:// design flap support structure. VerDate Sep<11>2014 16:44 May 07, 2018 Jkt 244001 PO 00000 Frm 00003 Fmt 4702 Sfmt 4702 E:\FR\FM\08MYP1.SGM 08MYP1 sradovich on DSK3GMQ082PROD with PROPOSALS Federal Register / Vol. 83, No. 89 / Tuesday, May 8, 2018 / Proposed Rules 20741 Related Service Information service information is reasonably Differences Between This Proposed AD Under 1 CFR Part 51 available because the interested parties and the Service Information We reviewed Bombardier Learjet 28/ have access to it through their normal The published service information 29 Service Bulletin (SB) 28/29–27–31 course of business or by the means does not list Models 31A, 35A, 36A, Recommended, dated September 11, identified in the ADDRESSES section. 55B, or 55C as affected models. 2017; Bombardier Learjet 31 SB 31–27– FAA’s Determination However, the serial numbers in the 35 Recommended, dated September 11, service information does reflect these 2017; Bombardier Learjet 35/36 SB 35/ We are proposing this AD because we models. The serial numbers in the 36 -27–50 Recommended, dated evaluated all the relevant information service information (except for Models September 11, 2017; Bombardier Learjet and determined the unsafe condition 28/29) does not start with –001, but the 55 SB 55–27–41 Recommended, dated described previously is likely to exist or effectivity in this AD starts with –001 September 11, 2017; and Bombardier develop in other products of the same for all models. The service information Learjet 60 SB 60–27–39 Recommended, type design. for all models also specifies to submit a Revision 1, dated January 15, 2018. For compliance response form to the the applicable models, the service Proposed AD Requirements manufacturer; however, this AD does information describes procedures for not require that action. replacement of the flap nose roller This proposed AD would require Costs of Compliance fitting, nose roller support bracket, and accomplishing the actions specified in adjacent rib support structure with the service information described We estimate that this proposed AD improved components. The service previously. affects 706 airplanes of U.S. registry. information also contains instructions to We estimate the following costs to ensure correct flap alignment. This comply with this proposed AD: ESTIMATED COSTS Cost per Cost on U.S. Action Labor cost Parts cost * product operators Replacement of flap nose roller fitting, nose roller support 188 work-hours × $85 per $12,213 $28,193 $19,904,258 bracket, and adjacent rib support structure with improved hour = $15,980. components. * Parts cost is an average of the composite costs for replacement of all of the kits per airplane. Not all airplanes will need all kits, as credit is allowed for some previous installations. INDIVIDUAL PARTS COST * the Administrator finds necessary for For the reasons discussed above, I safety in air commerce. This regulation certify this proposed regulation: Kit No. (K/N) Part cost is within the scope of that authority (1) Is not a ‘‘significant regulatory because it addresses an unsafe condition action’’ under Executive Order 12866, K/N 2381000–802 ................
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