Airworthiness Directives; Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes

Published date11 August 2020
Citation85 FR 48480
Record Number2020-17466
SectionProposed rules
CourtFederal Aviation Administration
Federal Register, Volume 85 Issue 155 (Tuesday, August 11, 2020)
[Federal Register Volume 85, Number 155 (Tuesday, August 11, 2020)]
                [Proposed Rules]
                [Pages 48480-48482]
                From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
                [FR Doc No: 2020-17466]
                ========================================================================
                Proposed Rules
                 Federal Register
                ________________________________________________________________________
                This section of the FEDERAL REGISTER contains notices to the public of
                the proposed issuance of rules and regulations. The purpose of these
                notices is to give interested persons an opportunity to participate in
                the rule making prior to the adoption of the final rules.
                ========================================================================
                Federal Register / Vol. 85, No. 155 / Tuesday, August 11, 2020 /
                Proposed Rules
                [[Page 48480]]
                DEPARTMENT OF TRANSPORTATION
                Federal Aviation Administration
                14 CFR Part 39
                [Docket No. FAA-2020-0683; Product Identifier 2020-NM-109-AD]
                RIN 2120-AA64
                Airworthiness Directives; Airbus Canada Limited Partnership (Type
                Certificate Previously Held by C Series Aircraft Limited Partnership
                (CSALP); Bombardier, Inc.) Airplanes
                AGENCY: Federal Aviation Administration (FAA), DOT.
                ACTION: Notice of proposed rulemaking (NPRM).
                -----------------------------------------------------------------------
                SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
                for certain Airbus Canada Limited Partnership Model BD-500-1A10 and BD-
                500-1A11 airplanes. This proposed AD was prompted by a report that
                during installation on the final assembly line, a foreign object damage
                (FOD) protective end cap was not removed from an extraction duct of the
                crew oxygen system. The protective end cap must be removed to prevent a
                build-up of oxygen under the flight deck floor, which is a fire risk.
                This proposed AD would require inspecting the air extraction duct
                installation to determine if a protective end cap is installed, and
                removing any protective end cap found. The FAA is proposing this AD to
                address the unsafe condition on these products.
                DATES: The FAA must receive comments on this proposed AD by September
                25, 2020.
                ADDRESSES: You may send comments, using the procedures found in 14 CFR
                11.43 and 11.45, by any of the following methods:
                 Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments.
                 Fax: 202-493-2251.
                 Mail: U.S. Department of Transportation, Docket
                Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
                Jersey Avenue SE, Washington, DC 20590.
                 Hand Delivery: Deliver to Mail address above between 9
                a.m. and 5 p.m., Monday through Friday, except Federal holidays.
                 For service information identified in this NPRM, contact Airbus
                Canada Limited Partnership, 13100 Henri-Fabre Boulevard, Mirabel,
                Qu[eacute]bec, J7N 3C6, Canada; telephone 450-476-7676; email
                [email protected]; internet https://a220world.airbus.com. You may
                view this service information at the FAA, Airworthiness Products
                Section, Operational Safety Branch, 2200 South 216th St., Des Moines,
                WA. For information on the availability of this material at the FAA,
                call 206-231-3195.
                Examining the AD Docket
                 You may examine the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2020-
                0683; or in person at Docket Operations between 9 a.m. and 5 p.m.,
                Monday through Friday, except Federal holidays. The AD docket contains
                this NPRM, any comments received, and other information. The street
                address for Docket Operations is listed above. Comments will be
                available in the AD docket shortly after receipt.
                FOR FURTHER INFORMATION CONTACT: Siddeeq Bacchus, Aerospace Engineer,
                Mechanical Systems and Admin Services Section, FAA, New York ACO
                Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone:
                516-228-7362; fax: 516-794-5531; email: [email protected].
                SUPPLEMENTARY INFORMATION:
                Comments Invited
                 The FAA invites you to send any written relevant data, views, or
                arguments about this proposal. Send your comments to an address listed
                under the ADDRESSES section. Include ``Docket No. FAA-2020-0683;
                Product Identifier 2020-NM-109-AD'' at the beginning of your comments.
                The FAA specifically invites comments on the overall regulatory,
                economic, environmental, and energy aspects of this NPRM. The FAA will
                consider all comments received by the closing date and may amend this
                NPRM because of those comments.
                 The FAA will post all comments received, without change, to https://www.regulations.gov, including any personal information you provide.
                The FAA will also post a report summarizing each substantive verbal
                contact received about this NPRM.
                Discussion
                 Transport Canada Civil Aviation (TCCA), which is the aviation
                authority for Canada, has issued Canadian AD CF-2020-19, dated May 26,
                2020 (referred to after this as the Mandatory Continuing Airworthiness
                Information, or ``the MCAI''), to correct an unsafe condition for
                certain Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500-
                1A11 airplanes. You may examine the MCAI in the AD docket on the
                internet at https://www.regulations.gov by searching for and locating
                Docket No. FAA-2020-0683.
                 This proposed AD was prompted by a report that during installation
                on the final assembly line, an FOD protective end cap was not removed
                from an extraction duct of the crew oxygen system located under the
                flight deck floor. The crew oxygen lines, electrical harnesses and
                electrical equipment, which operate at a high temperature, are also
                located under the flight deck floor. The extraction duct provides
                ventilation to adjacent electrical equipment and prevents a build-up of
                oxygen should an oxygen leak occur. The protective end cap must be
                removed to prevent a build-up of oxygen under the flight deck floor,
                which is a fire risk. The FAA is proposing this AD to address this
                possible ignition source, which could result in an oxygen-fed fire. See
                the MCAI for additional background information.
                Related Service Information Under 1 CFR Part 51
                 Airbus Canada Limited Partnership has issued A220 Service Bulletin
                BD500-351004, Issue 001, dated April 8, 2020. This service information
                describes procedures for a general visual inspection of the extraction
                duct of the crew oxygen system to determine if a protective end cap is
                installed, and removing any protective end cap found.
                 This service information is reasonably available because the
                interested parties have access to it through their normal course of
                business or by the means identified in the ADDRESSES section.
                [[Page 48481]]
                FAA's Determination
                 This product has been approved by the aviation authority of another
                country, and is approved for operation in the United States. Pursuant
                to the FAA's bilateral agreement with the State of Design Authority,
                the FAA has been notified of the unsafe condition described in the MCAI
                and service information referenced above. The FAA is proposing this AD
                because the FAA evaluated all the relevant information and determined
                the unsafe condition described previously is likely to exist or develop
                on other products of the same type design.
                Proposed Requirements of This NPRM
                 This proposed AD would require accomplishing the actions specified
                in the service information described previously.
                Costs of Compliance
                 The FAA estimates that this proposed AD affects 20 airplanes of
                U.S. registry. The FAA estimates the following costs to comply with
                this proposed AD:
                 Estimated Costs for Required Actions
                ----------------------------------------------------------------------------------------------------------------
                 Cost per Cost on U.S.
                 Labor cost Parts cost product operators
                ----------------------------------------------------------------------------------------------------------------
                3 work-hours x $85 per hour = $255........................... $0 $255 $5,100
                ----------------------------------------------------------------------------------------------------------------
                Authority for This Rulemaking
                 Title 49 of the United States Code specifies the FAA's authority to
                issue rules on aviation safety. Subtitle I, section 106, describes the
                authority of the FAA Administrator. Subtitle VII: Aviation Programs,
                describes in more detail the scope of the Agency's authority.
                 The FAA is issuing this rulemaking under the authority described in
                Subtitle VII, Part A, Subpart III, Section 44701: General requirements.
                Under that section, Congress charges the FAA with promoting safe flight
                of civil aircraft in air commerce by prescribing regulations for
                practices, methods, and procedures the Administrator finds necessary
                for safety in air commerce. This regulation is within the scope of that
                authority because it addresses an unsafe condition that is likely to
                exist or develop on products identified in this rulemaking action.
                Regulatory Findings
                 The FAA determined that this proposed AD would not have federalism
                implications under Executive Order 13132. This proposed AD would not
                have a substantial direct effect on the States, on the relationship
                between the national Government and the States, or on the distribution
                of power and responsibilities among the various levels of government.
                 For the reasons discussed above, I certify this proposed
                regulation:
                 (1) Is not a ``significant regulatory action'' under Executive
                Order 12866,
                 (2) Will not affect intrastate aviation in Alaska, and
                 (3) Will not have a significant economic impact, positive or
                negative, on a substantial number of small entities under the criteria
                of the Regulatory Flexibility Act.
                List of Subjects in 14 CFR Part 39
                 Air transportation, Aircraft, Aviation safety, Incorporation by
                reference, Safety.
                The Proposed Amendment
                 Accordingly, under the authority delegated to me by the
                Administrator, the FAA proposes to amend 14 CFR part 39 as follows:
                PART 39--AIRWORTHINESS DIRECTIVES
                0
                1. The authority citation for part 39 continues to read as follows:
                 Authority: 49 U.S.C. 106(g), 40113, 44701.
                Sec. 39.13 [Amended]
                0
                2. The FAA amends Sec. 39.13 by adding the following new airworthiness
                directive (AD):
                Airbus Canada Limited Partnership (Type Certificate previously held
                by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.):
                Docket No. FAA-2020-0683; Product Identifier 2020-NM-109-AD.
                (a) Comments Due Date
                 The FAA must receive comments by September 25, 2020.
                (b) Affected ADs
                 None.
                (c) Applicability
                 This AD applies to Airbus Canada Limited Partnership (Type
                Certificate previously held by C Series Aircraft Limited Partnership
                (CSALP); Bombardier, Inc.) airplanes, certificated in any category,
                identified in paragraphs (c)(1) and (2) of this AD.
                 (1) Model BD-500-1A10 airplanes, serial numbers 50010 through
                50018 inclusive, and 50020 through 50039 inclusive.
                 (2) Model BD-500-1A11 airplanes, serial numbers 55003 through
                55016 inclusive, and 55018 through 55054 inclusive.
                (d) Subject
                 Air Transport Association (ATA) of America Code 35, Oxygen.
                (e) Reason
                 This AD was prompted by a report that during installation on the
                final assembly line, a foreign object damage (FOD) protective end
                cap was not removed from an extraction duct of the crew oxygen
                system. The protective end cap must be removed to prevent a build-up
                of oxygen under the flight deck floor, which is a fire risk. The FAA
                is issuing this AD to address this possible ignition source, which
                could result in an oxygen-fed fire.
                (f) Compliance
                 Comply with this AD within the compliance times specified,
                unless already done.
                (g) Inspection
                 Within 1,650 flight hours or 8 months after the effective date
                of this AD, whichever occurs first: Do a general visual inspection
                of the air extraction duct installation to determine if a protective
                end cap is installed, and if installed, remove the protective end
                cap before further flight, in accordance with the Accomplishment
                Instructions of Airbus Canada Limited Partnership A220 Service
                Bulletin BD500-351004, Issue 001, dated April 8, 2020.
                (h) Other FAA AD Provisions
                 The following provisions also apply to this AD:
                 (1) Alternative Methods of Compliance (AMOCs): The Manager, New
                York ACO 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 certification
                office, send it to ATTN: Program Manager, Continuing Operational
                Safety, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410,
                Westbury, NY 11590; telephone 516-228-7300; fax 516-794-5531. Before
                using any approved AMOC, notify your appropriate principal
                inspector, or lacking a principal inspector, the manager of the
                local flight standards district office/certificate holding district
                office.
                 (2) Contacting the Manufacturer: For any requirement in this AD
                to obtain instructions
                [[Page 48482]]
                from a manufacturer, the instructions must be accomplished using a
                method approved by the Manager, New York ACO Branch, FAA; or
                Transport Canada Civil Aviation (TCCA); or Airbus Canada Limited
                Partnership's TCCA Design Approval Organization (DAO). If approved
                by the DAO, the approval must include the DAO-authorized signature.
                (i) Related Information
                 (1) Refer to Mandatory Continuing Airworthiness Information
                (MCAI) Canadian AD CF-2020-19, dated May 26, 2020; for related
                information. This MCAI may be found in the AD docket on the internet
                at https://www.regulations.gov by searching for and locating Docket
                No. FAA-2020-0683.
                 (2) For more information about this AD, contact Siddeeq Bacchus,
                Aerospace Engineer, Mechanical Systems and Admin Services Section,
                FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury,
                NY 11590; telephone: 516-228-7362; fax: 516-794-5531; email: [email protected].
                 (3) For service information identified in this AD, contact
                Airbus Canada Limited Partnership, 13100 Henri-Fabre Boulevard,
                Mirabel, Qu[eacute]bec, J7N 3C6, Canada; telephone 450-476-7676;
                email [email protected]; internet http://a220world.airbus.com. You
                may view this service information at the FAA, Airworthiness Products
                Section, Operational Safety Branch, 2200 South 216th St., Des
                Moines, WA. For information on the availability of this material at
                the FAA, call 206-231-3195.
                 Issued on July 30, 2020.
                Lance T. Gant,
                Director, Compliance & Airworthiness Division, Aircraft Certification
                Service.
                [FR Doc. 2020-17466 Filed 8-10-20; 8:45 am]
                BILLING CODE 4910-13-P
                

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