Unknown. Final special conditions; request for comments

4,544 words·~21 min read·/register/2018/08/03/2018-16609

A research copy — for the controlling text, always check the official state or federal source. Not legal advice.

--- schema: federal-register doc_type: fedreg source_file: FR-2018-08-03.xml --- 83 150 Friday, August 3, 2018 Contents Agriculture Agriculture Department See Forest Service See Rural Business-Cooperative Service Coast Guard Coast Guard RULES Regulated Navigation Area: Lake Washington, Seattle, WA, 38029-38031 2018-16683 Safety Zones: Fireworks Display, Shark River, Neptune, NJ, 38031-38033 2018-16620 PROPOSED RULES Drawbridge Operations: Duluth Ship Canal, Duluth-Superior Harbor, MN, 38099-38101 2018-16669 Commerce Commerce Department See Industry and Security Bureau See National Oceanic and Atmospheric Administration See National Telecommunications and Information Administration Committee for Purchase Committee for Purchase From People Who Are Blind or Severely Disabled NOTICES Procurement List;

Additions and Deletions, 38132-38133 2018-16642 2018-16647 Comptroller Comptroller of the Currency NOTICES Agency Information Collection Activities; Proposals, Submissions, and Approvals Appraisal Management Companies, 38204-38206 2018-16639 Release of Non-Public Information, 38206-38208 2018-16641 Defense Department Defense Department NOTICES Meetings: Defense Health Board, 38133-38134 2018-16672 Defense Science Board, 38134-38135 2018-16676 Drug Drug Enforcement Administration NOTICES Manufacturer of Controlled Substances;

Application: AMRI Rensselaer, Inc., 38179 2018-16635 Employee Benefits Employee Benefits Security Administration RULES Short-Term, Limited-Duration Insurance, 38212-38243 2018-16568 Energy Department Energy Department See Federal Energy Regulatory Commission PROPOSED RULES Energy Conservation Program: Manufactured Housing Standards, 38073-38080 2018-16650 Environmental Protection Environmental Protection Agency RULES Addition of Subsurface Intrusion Component to Hazard Ranking System;

Corrections, 38036-38039 2018-16605 Air Quality State Implementation Plans; Approvals and Promulgations: Missouri; Redesignation of the Missouri Portion of the St. Louis Missouri-Illinois Area to Attainment of the 1997 Annual Standards for Fine Particulate Matter and Approval of Associated Maintenance Plan, 38033-38036 2018-16003 National Emission Standards for Hazardous Air Pollutants: Portland Cement Manufacturing Industry Residual Risk and Technology Review, 38036 C1--2018--15718 PROPOSED RULES Air Quality State Implementation Plans;

Approvals and Promulgations: Connecticut; Plan Submittals for the 2008 Ozone National Ambient Air Quality Standards, 38104-38109 2018-16622 Maryland; Reasonably Available Control Technology State Implementation Plan Under 2008 Ozone National Ambient Air Quality Standard, 38110-38112 2018-16603 Missouri; Redesignation of the Missouri Portion of the St. Louis Missouri-Illinois Area to Attainment of the 1997 Annual Standards for Fine Particulate Matter and Approval of Associated Maintenance Plan, 38114-38115 2018-16004 New Hampshire;

Updates to Enhanced Motor Vehicle Inspection and Maintenance Program Regulation, 38102-38103 2018-16623 West Virginia; Interstate Transport Requirements for 2012 Fine Particulate Matter Standard, 38112-38114 2018-16602 NOTICES Agency Information Collection Activities; Proposals, Submissions, and Approvals: Criteria for Classification of Solid Waste Disposal Facilities and Practices, Recordkeeping and Reporting Requirements, 38141 2018-16690 Hazardous Remediation Waste Management Requirements Contaminated Media, 38138-38139 2018-16687 Environmental Impact Statements;

Availability, etc.: Weekly Receipts, 38140 2018-16572 IRIS Assessment Plan for Naphthalene, 38139-38140 2018-16686 Federal Aviation Federal Aviation Administration RULES Airworthiness Directives: Leonardo S.p.A. Helicopters (Type Certificate Previously Held By Finmeccanica S.p.A., AgustaWestland S.p.A), 38014-38016 2018-16496 Amendment of Class D and E Airspace: Pennsylvania Towns; Lancaster, Reading and Williamsport, 38016-38018 2018-16607 Special Conditions: Cirrus Design Corporation;

Model SF50 Airplane; Installation of Rechargeable Lithium Batteries, 38011-38014 2018-16609 PROPOSED RULES Airworthiness Directives: Airbus Airplanes, 38091-38096 2018-16497 Airbus SAS Airplanes, 38088-38091 2018-16574 General Electric Company Turbofan Engines, 38086-38088 2018-16515 The Boeing Company Airplanes, 38096-38098 2018-16575 Amendment of Class E Airspace: Cambridge, MD, 38098-38099 2018-16606 Federal Communications Federal Communications Commission RULES Schedule of Application Fees, 38039-38051 2018-16039 NOTICES Agency Information Collection Activities;

Proposals, Submissions, and Approvals, 38142-38143 2018-16585 Meetings, 38141-38142 2018-16586 Federal Deposit Federal Deposit Insurance Corporation PROPOSED RULES Rules of Practice and Procedure, 38080-38085 2018-16548 NOTICES Modifications to the Statement of Policy Pursuant to Section 19 of the Federal Deposit Insurance Act Concerning Participation in the Conduct of the Affairs of an Insured Institution by Persons Who Have Been Convicted of Crimes Involving Dishonesty, Breach of Trust or Money Laundering or Who Have Entered Pretrial Diversion Programs For Such Offenses, 38143-38149 2018-16634 Federal Emergency Federal Emergency Management Agency NOTICES Major Disaster Declarations:

Hawaii; Amendment No. 2, 38161 2018-16668 Texas; Amendment No. 1, 38161 2018-16667 West Virginia, 38159 2018-16670 Proposed Flood Hazard Determinations, 38160-38161 2018-16666 Federal Energy Federal Energy Regulatory Commission NOTICES Combined Filings, 38135-38138 2018-16627 2018-16631 2018-16632 2018-16633 Petitions for Declaratory Orders: Sunrise Pipeline LLC, 38136 2018-16630 Federal Housing Enterprise Federal Housing Enterprise Oversight Office PROPOSED RULES Enterprise Capital Requirements, 38085-38086 2018-16654 Federal Housing Finance Agency Federal Housing Finance Agency PROPOSED RULES Enterprise Capital Requirements, 38085-38086 2018-16654 Federal Transit Federal Transit Administration NOTICES Limitations on Claims Against Proposed Public Transportation Projects, 38199-38201 2018-16682 2018-16684 Fish Fish and Wildlife Service NOTICES Endangered and Threatened Species:

Draft Revised Recovery Plan for Texas Snowbells, 38164-38166 2018-16655 Permit Applications, 38163-38164 2018-16625 Food and Drug Food and Drug Administration NOTICES Agency Information Collection Activities; Proposals, Submissions, and Approvals: Food Additive Petitions and Investigational Food Additive Exemptions, 38149-38151 2018-16616 Medical Device Recall Authority, 38151-38153 2018-16618 Survey on Occurrence of Foodborne Illness Risk Factors in Selected Institutional Foodservice and Retail Food Stores Facility Types, 38153-38157 2018-16648 Forest Forest Service NOTICES Agency Information Collection Activities;

Proposals, Submissions, and Approvals: Helicopter Pilot Qualifications and Approval Record, 38116-38117 2018-16663 Environmental Impact Statements; Availability, etc.: Snow King Mountain Resort On-mountain Improvements Project; Bridger-Teton National Forest, Jackson Ranger District, Teton County, WY, 38117-38118 2018-16559 Land Management Plan: Inyo National Forest, CA, 38118-38119 2018-16662 Health and Human Health and Human Services Department See Food and Drug Administration See National Institutes of Health RULES Short-Term, Limited-Duration Insurance, 38212-38243 2018-16568 NOTICES Meetings:

Advisory Committee on Interdisciplinary, Community-Based Linkages, 38157-38158 2018-16671 Homeland Homeland Security Department See Coast Guard See Federal Emergency Management Agency Housing Housing and Urban Development Department See Federal Housing Enterprise Oversight Office NOTICES Agency Information Collection Activities; Proposals, Submissions, and Approvals: Home Mortgage Disclosure Act Loan/Application Register, 38161-38162 2018-16661 HOPE VI Implementation and HOPE VI Main Street Programs:

Funding and Program Data Collection, 38162-38163 2018-16656 Indian Affairs Indian Affairs Bureau NOTICES Meetings: Boise District Resource Advisory Council, Idaho, 38166 2018-16589 Industry Industry and Security Bureau RULES Revision of Export and Reexport License Requirements for Republic of South Sudan Under the Export Administration Regulations, 38021-38023 2018-16612 U.S.-India Major Defense Partners: Implementation of Membership in the Wassenaar Arrangement and Addition of India to Country Group A:5, 38018-38021 2018-16691 NOTICES Export Privileges;

Denials: Narender Sharma and Hydel Engineering Products, 38123-38125 2018-16678 Interior Interior Department See Fish and Wildlife Service See Indian Affairs Bureau See Land Management Bureau See National Park Service See Reclamation Bureau Internal Revenue Internal Revenue Service RULES Extension of Time To File Certain Information Returns, 38023-38029 2018-16717 Short-Term, Limited-Duration Insurance, 38212-38243 2018-16568 International Trade Com International Trade Commission NOTICES Andean Trade Preference Act:

Impact on U.S. Industries and Consumers and on Drug Crop Eradication and Crop Substitution, 38176-38177 2018-16610 Investigations; Determinations, Modifications, and Rulings, etc.: Certain Beverage Brewing Capsules, Components Thereof, and Products Containing Same, 38178-38179 2018-16611 Request for Statements on the Public Interest: Certain X-Ray Breast Imaging Devices and Components Thereof, 38177-38178 2018-16651 Justice Department Justice Department See Drug Enforcement Administration NOTICES Proposed Consent Decrees Under CERCLA, 38179-38180 2018-16674 Labor Department Labor Department See Employee Benefits Security Administration See Occupational Safety and Health Administration Land Land Management Bureau NOTICES Environmental Impact Statements;

Availability, etc.: Draft Resource Management Plan, Carlsbad Field Office, NM, 38167-38172 2018-16665 Proposed Greater Phoenix Project, Lander County, NV, 38172-38173 2018-16680 Management Management and Budget Office NOTICES Requests for Information: Establishing Government Effectiveness Advanced Research Center, 38183-38184 2018-16615 National Highway National Highway Traffic Safety Administration RULES 911 Grant Program, 38051-38069 2018-16567 NOTICES New Car Assessment Program, 38201-38204 2018-16653 National Institute National Institutes of Health NOTICES Meetings:

Center for Scientific Review, 38158 2018-16590 2018-16591 National Institute on Deafness and Other Communication Disorders, 38158-38159 2018-16592 National Oceanic National Oceanic and Atmospheric Administration RULES Fisheries Off West Coast States: Modifications of West Coast Commercial Salmon Fisheries; Inseason Actions 2 Through 11, 38069-38072 2018-16587 NOTICES Agency Information Collection Activities; Proposals, Submissions, and Approvals, 38129-38131 2018-16644 2018-16645 Agency Information Collection Activities;

Proposals, Submissions, and Approvals: Southeast Region Aquaculture Program, 38127-38128 2018-16657 Surfclam/Ocean Quahog Individual Transferable Quota Administration, 38131-38132 2018-16643 Meetings: Evaluation of Kachemak Bay National Estuarine Research Reserve, 38130 2018-16675 North Pacific Fishery Management Council, 38129-38130 2018-16660 Pacific Fishery Management Council, 38128-38129 2018-16658 2018-16681 Takes of Marine Mammals: Incidental to Bravo Wharf Recapitalization Project, 38125-38127 2018-16599 National Park National Park Service NOTICES Meetings:

Native American Graves Protection and Repatriation Review Committee, 38173-38174 2018-16593 National Telecommunications National Telecommunications and Information Administration RULES 911 Grant Program, 38051-38069 2018-16567 Nuclear Regulatory Nuclear Regulatory Commission NOTICES Guidance: Licenses Authorizing Distribution to General Licensees and Program-Specific Guidance About Special Nuclear Material of Less Than Critical Mass Licenses, 38184 2018-16619 Meetings: Advisory Committee on Reactor Safeguards, 38184-38185 2018-16621 Occupational Safety Health Adm Occupational Safety and Health Administration NOTICES Agency Information Collection Activities;

Proposals, Submissions, and Approvals: 1,2-Dibromo-3-Chloropropane

(DBCP)Standard, 38180-38181 2018-16614 Nationally Recognized Testing Laboratories: FM Approvals LLC; Grant of Expansion of Recognition and Modification to the List of Appropriate Test Standards, 38181-38183 2018-16617 Susan Harwood Training Grant Program, FY 2018, 38180 2018-16613 Postal Regulatory Postal Regulatory Commission NOTICES New Postal Programs, 38185-38186 2018-16600 Reclamation Reclamation Bureau NOTICES Quarterly Status Report of Water Service, Repayment, and Other Water-Related Contract Actions, 38174-38176 2018-16640 Rural Business Rural Business-Cooperative Service NOTICES Request for Applications: Biorefinery, Renewable Chemical, and Biobased Product Manufacturing Assistance Program, 38119-38123 2018-16664 Securities Securities and Exchange Commission NOTICES Agency Information Collection Activities; Proposals, Submissions, and Approvals, 38186-38187 2018-16601 Self-Regulatory Organizations; Proposed Rule Changes: BOX Options Exchange, LLC, 38198 2018-16595 Cboe BYX Exchange, Inc., 38187-38191 2018-16596 Cboe EDGA Exchange, Inc., 38191-38195 2018-16597 New York Stock Exchange, LLC, 38195-38198 2018-16598 State Department State Department NOTICES Culturally Significant Objects Imported for Exhibition: Miraculous Encounters: Pontormo From Drawing to Painting, 38199 2018-16659 Meetings: International Maritime Organization's Sub-Committee on Carriage of Cargoes and Containers, 38199 2018-16677 Transportation Department Transportation Department See Federal Aviation Administration See Federal Transit Administration See National Highway Traffic Safety Administration Treasury Treasury Department See Comptroller of the Currency See Internal Revenue Service NOTICES Agency Information Collection Activities; Proposals, Submissions, and Approvals, 38208-38209 2018-16636 Veteran Affairs Veterans Affairs Department NOTICES Agency Information Collection Activities; Proposals, Submissions, and Approvals: Application for Burial in a National Cemetery, 38209 2018-16628 Separate Parts In This Issue Part II Health and Human Services Department, 38212-38243 2018-16568 Labor Department, Employee Benefits Security Administration, 38212-38243 2018-16568 Treasury Department, Internal Revenue Service, 38212-38243 2018-16568 Reader Aids Consult the Reader Aids section at the end of this issue for phone numbers, online resources, finding aids, and notice of recently enacted public laws. To subscribe to the Federal Register Table of Contents electronic mailing list, go to https://public.govdelivery.com/accounts/USGPOOFR/subscriber/new, enter your e-mail address, then follow the instructions to join, leave, or manage your subscription. 83 150 Friday, August 3, 2018 Rules and Regulations DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 23 [Docket No. FAA-2018-0697; Special Conditions No. 23-289-SC] Special Conditions: Cirrus Design Corporation; Model SF50 Airplane; Installation of Rechargeable Lithium Batteries AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final special conditions; request for comments. SUMMARY: These special conditions are issued for the Cirrus Design Corporation Model SF50 airplane. This airplane will have a novel or unusual design feature associated with the installation of a rechargeable lithium battery. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards. DATES: The effective date of these special conditions is August 3, 2018. We must receive your comments by September 17, 2018. ADDRESSES: Send comments identified by docket number FAA-2018-0697 using any of the following methods: • *Federal eRegulations Portal:* Go to *http://www.regulations.gov* and follow the online instructions for sending your comments electronically. • *Mail:* Send comments to Docket Operations, M-30, U.S. Department of Transportation (DOT), 1200 New Jersey Avenue SE, Room W12-140, West Building Ground Floor, Washington, DC 20590-0001. • *Hand Delivery of Courier:* Take comments to Docket Operations in Room W12-140 of the West Building Ground Floor at 1200 New Jersey Avenue SE, Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. • *Fax:* Fax comments to Docket Operations at 202-493-2251. *Privacy:* The FAA will post all comments it receives, without change, to *http://regulations.gov,* including any personal information the commenter provides. Using the search function of the docket website, anyone can find and read the electronic form of all comments received into any FAA docket, including the name of the individual sending the comment (or signing the comment for an association, business, labor union, etc.). DOT's complete Privacy Act Statement can be found in the **Federal Register** published on April 11, 2000 (65 FR 19477-19478), as well as at *http://DocketsInfo.dot.gov.* *Docket:* Background documents or comments received may be read at *http://www.regulations.gov* at any time. Follow the online instructions for accessing the docket or go to the Docket Operations in Room W12-140 of the West Building Ground Floor at 1200 New Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. FOR FURTHER INFORMATION CONTACT: James Brady, Federal Aviation Administration, Aircraft Certification Service, Small Airplane Directorate, AIR-691, 901 Locust, Room 301, Kansas City, MO; telephone

(816)329-4132; facsimile

(816)329-4090. SUPPLEMENTARY INFORMATION: The FAA has determined that notice and opportunity for prior public comment are unnecessary because the substance of these special conditions has been subjected to the public comment process in several prior instances with no substantive comments received. It is unlikely that prior public comment would result in a significant change from the substance contained herein. The FAA therefore finds that good cause exists for making these special conditions effective upon issuance. The FAA is requesting comments to allow interested persons to submit views that may not have been submitted in response to the prior opportunities for comment. Special conditions No. Company/airplane model 23-15-01-SC 1 Kestrel Aircraft Company/Model K-350. 23-09-02-SC 2 Cessna Aircraft Company/Model 525C (CJ4). 23-08-05-SC 3 Spectrum Aeronautical, LLC/Model 40. Comments Invited 1 *http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgSC.nsf/0/39B156C006EB842E86257EF3004BB13C?OpenDocument&Highlight=installation%20of%20rechargeable%20lithium%20battery.* 2 *http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgSC.nsf/0/902232309C19F0D4862575CB0045AC0D?OpenDocument&Highlight=installation%20of%20rechargeable%20lithium%20battery.* 3 *http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgSC.nsf/0/28E630294DCC27B986257513005968A3?OpenDocument&Highlight=installation%20of%20rechargeable%20lithium%20battery.* We invite interested people to take part in this rulemaking by sending written comments, data, or views. The most helpful comments reference a specific portion of the special conditions, explain the reason for any recommended change, and include supporting data. We ask that you send us two copies of written comments. We will consider all comments we receive on or before the closing date for comments. We will consider comments filed late if it is possible to do so without incurring expense or delay. We may change these special conditions based on the comments we receive. Background On October 19, 2017, Cirrus Design Corporation (Cirrus) applied for a change to Type Certificate No. A00018CH for installation of rechargeable lithium batteries and battery systems in the Model SF50. The SF50 is a normal category single-engine-jet airplane powered by a Williams International Model FJ33-5A turbofan engine capable of carrying eight occupants including one pilot, with a maximum takeoff weight of 6,000 pounds and a maximum operating altitude 28,000 feet. The current regulatory requirements for part 23 airplanes do not contain adequate requirements for use of rechargeable lithium batteries in airborne applications. This type of battery possesses certain failure and operational characteristics with maintenance requirements that differ significantly from that of the nickel-cadmium (Ni-Cd) and lead-acid rechargeable batteries currently approved in other normal, utility, acrobatic, and commuter category airplanes. Therefore, the FAA is applying this special condition to address— • All characteristics of the rechargeable lithium batteries and their installation that could affect safe operation of the modified SF50 airplanes; and • Appropriate Instructions for Continued Airworthiness

(ICA)that include maintenance requirements to ensure the availability of electrical power from the batteries when needed. Type Certification Basis Under the provisions of § 21.101, Cirrus must show that the SF50 airplane, as changed, continues to meet the applicable provisions of the regulations incorporated by reference in Type Certificate Data Sheet

(TCDS)No. A00018CH 4 or the applicable regulations in effect on the date of application for the change. The regulations incorporated by reference in the type certificate are commonly referred to as the “original type certification basis.” The regulations incorporated by reference in TCDS No. A00018CH are as follows: Title 14 Code of Federal Regulations 14 CFR part 23, effective February 1, 1965, as amended by amendments 23-1 through 23-62. 14 CFR part 34, effective September 10, 1990, as amended by amendments 34-1 through 34-5A. 14 CFR part 36, effective December 1, 1969, as amended by amendments 36-1 through 36-28. Special Conditions 23-261-SC, issued September 4, 2013, Inflatable Three-Point Restraint Safety Belt with an Integrated Airbag Device. 23-267-SC, issued September 14, 2015, Full Authority Digital Engine Control System. 23-272-SC, issued December 2, 2015, Auto Throttle. 23-275-SC, issued July 6, 2016, Whole Airplane Parachute Recovery System. Equivalent Level of Safety

(ELOS)Findings ELOS No., date and subject Regulation requiring an ELOS ACE-14-06, dated April 10, 2014: Electronic Placards §§ 23.1559, 23.1567. ACE-15-04, dated October 17, 2016: Landing Gear Warning Horn § 23.729(f). ACE-15-14, dated June 25, 2015: Cockpit Control Knob Shape § 23.781(b). TC6444CH-A-F-2, dated July 12, 2016: Spin Requirements § 23.221. TC06444CH-A-F-5, dated July 15, 2016: Amendment 62 Corrections §§ 23.45, 23.51, 23.63, 23.67, 23.73, 23.77, 23.161, 23.181, 23.221, 23.251, 23.253, 23.571, 23.785, 23.831, 23.1195, 23.1197, 23.1199, 23.1201, 23.1527, 23.1545, 23.1583.OW> TC6444CH-A-S-11, dated June 23, 2016: Storage Battery Design and Installation § 23.1353(h). Exemptions 4 *http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/4ec2ccf1759afb61862581860056ef39/$FILE/A00018CH_Rev_3.pdf.* Exemption No. 9948, dated October 23, 2009, §§ 23.562(b) and 23.785(a), Installation of seats limited to occupants weighing 90 pounds or less. Exemption No. 11092, dated October 23, 2014, § 23.177(b), Use of electric roll trim for static lateral stability. Exemption No. 16970, dated June 23, 2016, § 23.1419(a), 61-knot stall speed with critical ice accretions. If the Administrator finds that the applicable airworthiness regulations ( *i.e.,* 14 CFR part 23) do not contain adequate or appropriate safety standards for the SF50 airplane because of a novel or unusual design feature, special conditions are prescribed under the provisions of § 21.16. In addition to the applicable airworthiness regulations and special conditions, the SF50 must comply with the fuel vent and exhaust emission requirements of 14 CFR part 34 and the noise certification requirements of 14 CFR part 36. The FAA issues special conditions, as defined in § 11.19, under § 11.38 and they become part of the type certification basis under § 21.101. Special conditions are initially applicable to the models for which they are issued. Should the type certificate for that model be amended later to include any other model that incorporates the same novel or unusual design feature, or should any other model already included on the same type certificate be modified to incorporate the same novel or unusual design feature, the FAA would apply these special conditions to the other model(s). Novel or Unusual Design Features The Cirrus SF50 airplane will incorporate the following novel or unusual design features: The installation of a rechargeable lithium battery as a main or engine start airplane battery. Discussion The applicable regulations governing the installation of batteries in general aviation airplanes were derived from Civil Air Regulations

(CAR)3 as part of the recodification that established 14 CFR part 23. The battery requirements identified in § 23.1353 were a rewording of the CAR requirements. Additional rulemaking activities—resulting from increased incidents of Ni-Cd battery fire or failures—incorporated § 23.1353(f) and (g), amendments 23-20 and 23-21, respectively. The FAA did not envision the introduction of lithium battery installations at the time these regulations were published. The proposed use of rechargeable lithium batteries prompted the FAA to review the adequacy of these existing regulations. We determined the existing regulations do not adequately address the safety of lithium battery installations. Current experience with rechargeable lithium batteries in commercial or general aviation is limited. However, other users of this technology—ranging from personal computers, to wireless telephone manufacturers, to the electric vehicle industry—have noted safety problems with rechargeable lithium batteries. These problems, as described in the following paragraphs, include overcharging, over-discharging, flammability of cell components, cell internal defects, and hazards resulting from exposure to extreme temperatures. 1. *Overcharging:* In general, rechargeable lithium batteries are significantly more susceptible than their Ni-Cd or lead-acid counterparts to thermal runway, which is an internal failure that can result in self-sustaining increases in temperature and pressure. This is especially true for overcharging, which causes heating and destabilization of the components of the cell, leading to the formation (by plating) of highly unstable metallic lithium. The metallic lithium can ignite, resulting in a self-sustaining fire or explosion. Finally, the severity of thermal runaway due to overcharging increases with increasing battery capacity due to the higher amount of electrolyte in large batteries. 2. *Over-discharging:* Discharge of some types of rechargeable lithium battery cells beyond the manufacturer's recommended specification can cause corrosion of the electrodes of the cell, resulting in loss of battery capacity that cannot be reversed by recharging. This loss of capacity may not be detected by the simple voltage measurements commonly available to flight crews as a means of checking battery status—a problem shared with Ni-Cd batteries. In addition, over-discharging has the potential to lead to an unsafe condition (creation of dendrites that could result in internal short circuit during the recharging cycle). 3. *Flammability of Cell Components:* Unlike Ni-Cd and lead-acid batteries, some types of rechargeable lithium batteries use liquid electrolytes that are flammable. The electrolyte can serve as a source of fuel for an external fire, if there is a breach of the battery container. 4. *Cell Internal Defects:* The rechargeable lithium batteries and rechargeable battery systems have a history of undetected cell internal defects. These defects may or may not be detected during normal operational evaluation, test, and validation. This may lead to an unsafe condition during in-service operation. 5. *Extreme Temperatures:* Exposure to an extreme temperature environment has the potential to create major hazards. Care must be taken to ensure that the lithium battery remains within the manufacturer's recommended specification. Applicability As discussed above, these special conditions are applicable to the SF50 airplane. Should Cirrus apply at a later date for a change to the type certificate to include another model incorporating the same novel or unusual design feature, the FAA would apply these special conditions to that model as well. Conclusion This action affects only certain novel or unusual design features on the SF50 airplane. It is not a rule of general applicability and affects only the applicant who applied to the FAA for approval of these features on the airplane. The substance of these special conditions has been subjected to the notice and comment period in several prior instances and has been derived without substantive change from those previously issued. It is unlikely that prior public comment would result in a significant change from the subject contained herein. Therefore, notice and opportunity for prior public comment hereon are unnecessary and the FAA finds good cause, in accordance with 5 U.S.C. 553(b)(3)(B) and 553(d)(3), for making these special conditions effective upon issuance. The FAA is requesting comments to allow interested persons to submit views that may not have been submitted in response to the prior opportunities for comment described above. List of Subjects in 14 CFR Part 23 Aircraft, Aviation safety, Signs and symbols. Citation The authority citation for these special conditions is as follows: Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701-44702, 44704; Pub. L. 113-53, 127 Stat 584 (49 U.S.C. 44704) note; 14 CFR 21.16 and 21.101; and 14 CFR 11.38 and 11.19. The Special Conditions Accordingly, pursuant to the authority delegated to me by the Administrator, the following special conditions are issued as part of the type certification basis for the Cirrus Design Corporation Model SF50 airplane. 1. Installation of Lithium Battery In lieu of the requirements in § 23.1353 (a), (b), (c), (d), and (e), amendment 23-62, rechargeable lithium battery installations on the Cirrus Model SF50 must be designed and installed as follows:

(1)Maintain safe cell temperatures and pressures during— i. Normal operations; ii. Any probable failure conditions of charging or discharging or battery monitoring system; iii. Any failure of the charging or battery monitoring system shown to not be extremely remote.

(2)Prevent explosion or fire in the event of a failure under (1)(ii) and (1)(iii) above.

(3)Prevent the occurrence of self-sustaining, uncontrolled increases in temperature or pressure.

(4)Not emit explosive or toxic gases in hazardous quantities within the airplane either in normal operation or as a result of any failure.

(5)Comply with the requirements of § 23.863(a) through

(d)at amendment 23-62.

(6)Escaped corrosive fluids or gases shall not damage surrounding structure or any adjacent systems, equipment, electrical wiring, or the airplane in such a way as to cause a major or more severe failure condition, in accordance with § 23.1309(c) at amendment 23-62—or commensurate § 23.1309 paragraphs of older amendment—and applicable regulatory guidance.

(7)The maximum amount of heat resulting from a short circuit of the battery or internal cell, or any other failure, shall not have any hazardous effect on structure or essential systems.

(8)Rechargeable lithium battery installations must have a system to automatically control the charging rate of the battery to prevent battery overheating and overcharging, and either— i. A battery temperature sensing and over-temperature warning system with a means for automatically disconnecting the battery from its charging source in the event of an over-temperature condition; or ii. A battery failure sensing and warning system with a means for automatically disconnecting the battery from its charging source in the event of battery failure.

(9)Any rechargeable lithium battery installation, the function of which is required for safe operation of the aircraft, must incorporate a monitoring and warning feature that will provide an indication to the appropriate flight crewmembers whenever the state of charge of the batteries has fallen below levels considered acceptable for dispatch of the aircraft. Note 1 to paragraph (9): Reference § 23.1353(h) for dispatch consideration.

(10)The Instructions for Continued Airworthiness

(ICA)required by § 23.1529 must contain maintenance requirements to ensure that the battery has been sufficiently charged at appropriate intervals specified by the battery manufacturer and the equipment manufacturer that contain the rechargeable lithium battery or rechargeable lithium battery system. The lithium rechargeable batteries and lithium rechargeable battery systems must not degrade below specified ampere-hour levels sufficient to power the aircraft system. The ICA must also contain procedures for the maintenance of replacement batteries to prevent the installation of batteries that have degraded charge retention ability or other damage due to prolonged storage at a low state of charge. Replacement batteries must be of the same manufacturer and part number as approved by the FAA. Note 2 to paragraph (10): Maintenance requirements include procedures that check battery capacity, charge degradation at manufacturers recommended inspection intervals, and replace batteries at manufacturer's recommended replacement schedule/time to prevent age-related degradation. Note 3 to paragraph (10): The term “sufficiently charged” means that the battery must retain enough charge, expressed in ampere-hours, to ensure that the battery cells will not be damaged. A battery cell may be damaged by low charge ( *i.e.,* below a certain level), resulting in a reduction in the ability to charge and retain a full charge. This reduction would be greater than the reduction that may result from normal operational degradation. Note 4 to paragraph (10): Replacement battery in spares storage may be subject to prolonged storage at a low state of charge. Issued in Kansas City, Missouri, on July 25, 2018. Pat Mullen, Manager, Small Airplane Standards Branch, Aircraft Certification Service. [FR Doc. 2018-16609 Filed 8-2-18; 8:45 am]

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