Airworthiness Directives; Bombardier, Inc., Airplanes, 7056-7059 [2022-02513]

Download as PDF khammond on DSKJM1Z7X2PROD with PROPOSALS 7056 Federal Register / Vol. 87, No. 26 / Tuesday, February 8, 2022 / Proposed Rules comments are being processed simultaneously, your comment may not be viewable for up to several weeks. Please keep the comment tracking number that www.regulations.gov provides after you have successfully uploaded your comment. Submitting comments via email. Comments and documents submitted via email also will be posted to www.regulations.gov. If you do not want your personal contact information to be publicly viewable, do not include it in your comment or any accompanying documents. Instead, provide your contact information on a cover letter. Include your first and last names, email address, telephone number, and optional mailing address. The cover letter will not be publicly viewable as long as it does not include any comments. Include contact information each time you submit comments, data, documents, and other information to DOE. Faxes will not be accepted. Comments, data, and other information submitted to DOE electronically should be provided in PDF (preferred), Microsoft Word or Excel, WordPerfect, or text (ASCII) file format. Provide documents that are not secured, are written in English and are free of any defects or viruses. Documents should not contain special characters or any form of encryption and, if possible, they should carry the electronic signature of the author. Campaign form letters. Please submit campaign form letters by the originating organization in batches of between 50 to 500 form letters per PDF or as one form letter with a list of supporters’ names compiled into one or more PDFs. This reduces comment processing and posting time. Confidential Business Information. According to 10 CFR 1004.11, any person submitting information that he or she believes to be confidential and exempt by law from public disclosure should submit via email, postal mail, or hand delivery/courier two well-marked copies: one copy of the document marked confidential including all the information believed to be confidential, and one copy of the document marked ‘‘non-confidential’’ with the information believed to be confidential deleted. DOE will make its own determination about the confidential status of the information and treat it according to its determination. It is DOE’s policy that all comments may be included in the public docket, without change and as received, including any personal information provided in the comments (except VerDate Sep<11>2014 15:47 Feb 07, 2022 Jkt 256001 information deemed to be exempt from public disclosure). DOE considers public participation to be a very important part of the process for developing test procedures and energy conservation standards. DOE actively encourages the participation and interaction of the public during the comment period in each stage of this process. Interactions with and between members of the public provide a balanced discussion of the issues and assist DOE in the process. Anyone who wishes to be added to the DOE mailing list to receive future notices and information about this process should contact Appliance and Equipment Standards Program staff at (202) 287– 1445 or via email at ApplianceStandardsQuestions@ ee.doe.gov. Notice of proposed rulemaking (NPRM). ACTION: DEPARTMENT OF TRANSPORTATION The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL– 600–1A11 (600), CL–600–2A12 (601), and CL–600–2B16 (601–3A, 601–3R, and 604 Variants) airplanes. This proposed AD was prompted by a report of smoke in the aft cabin during a maintenance activity, which an investigation determined was caused by a faulty drain line ribbon heater. This proposed AD would require a general visual inspection of all affected potable water-line ribbon heater installations and corrective actions and other specified actions. 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 March 25, 2022. 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 Bombardier Business Aircraft Customer Response Center, 400 Coˆte-Vertu Road West, Dorval, Que´bec H4S 1Y9, Canada; telephone 514–855–2999; email ac.yul@ aero.bombardier.com; internet https:// www.bombardier.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. Federal Aviation Administration Examining the AD Docket Signing Authority This document of the Department of Energy was signed on February 2, 2022, by Kelly J. Speakes-Backman, Principal Deputy Assistant Secretary for Energy Efficiency and Renewable Energy, pursuant to delegated authority from the Secretary of Energy. That document with the original signature and date is maintained by DOE. For administrative purposes only, and in compliance with requirements of the Office of the Federal Register, the undersigned DOE Federal Register Liaison Officer has been authorized to sign and submit the document in electronic format for publication, as an official document of the Department of Energy. This administrative process in no way alters the legal effect of this document upon publication in the Federal Register. Signed in Washington, DC, on February 3, 2022. Treena V. Garrett, Federal Register Liaison Officer, U.S. Department of Energy. [FR Doc. 2022–02576 Filed 2–7–22; 8:45 am] BILLING CODE 6450–01–P 14 CFR Part 39 [Docket No. FAA–2022–0090; Project Identifier MCAI–2021–00399–T] RIN 2120–AA64 Airworthiness Directives; Bombardier, Inc., Airplanes Federal Aviation Administration (FAA), DOT. AGENCY: PO 00000 Frm 00009 Fmt 4702 Sfmt 4702 SUMMARY: You may examine the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA–2022–0090; 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. FOR FURTHER INFORMATION CONTACT: Thomas Niczky, Aerospace Engineer, E:\FR\FM\08FEP1.SGM 08FEP1 Federal Register / Vol. 87, No. 26 / Tuesday, February 8, 2022 / Proposed Rules Avionics and Electrical Systems Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516– 228–7347; fax 516–794–5531; email 9avs-nyaco-cos@faa.gov. 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 ADDRESSES. Include ‘‘Docket No. FAA–2022–0090; Project Identifier MCAI–2021–00399–T’’ at the beginning of your comments. The most helpful comments reference a specific portion of the proposal, explain the reason for any recommended change, and include supporting data. The FAA will consider all comments received by the closing date and may amend the proposal because of those comments. Except for Confidential Business Information (CBI) as described in the following paragraph, and other information as described in 14 CFR 11.35, the FAA will post all comments received, without change, to https:// www.regulations.gov, including any personal information you provide. The agency will also post a report summarizing each substantive verbal contact received about this NPRM. Confidential Business Information CBI is commercial or financial information that is both customarily and actually treated as private by its owner. Under the Freedom of Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public disclosure. If your comments responsive to this NPRM contain commercial or financial information that is customarily treated as private, that you actually treat as private, and that is relevant or responsive to this NPRM, it is important that you clearly designate the submitted comments as CBI. Please mark each page of your submission containing CBI as ‘‘PROPIN.’’ The FAA will treat such marked submissions as confidential under the FOIA, and they will not be placed in the public docket of this NPRM. Submissions containing CBI should be sent to Thomas Niczky, Aerospace Engineer, Avionics and Electrical Systems Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516–228–7347; fax 516–794–5531; email 9-avs-nyaco-cos@ faa.gov. Any commentary that the FAA receives which is not specifically designated as CBI will be placed in the public docket for this rulemaking. Background Transport Canada Civil Aviation (TCCA), which is the aviation authority for Canada, has issued TCCA AD CF– 2021–13, dated April 1, 2021 (TCCA AD CF–2021–13) (also referred to after this as the Mandatory Continuing Airworthiness Information, or the MCAI), to correct an unsafe condition for Bombardier, Inc., Model CL–600– 1A11 (600), CL–600–2A12 (601), and CL–600–2B16 (601–3A, 601–3R, and 604 Variants) airplanes, equipped with any Cox & Co. 3043 or 3044 series (potable water-line) ribbon heater. You may examine the MCAI in the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA–2022–0090. This proposed AD was prompted by a report of smoke in the aft cabin during a maintenance activity, which an investigation determined was caused by a faulty drain line ribbon heater. The ribbon heater lead wires were found to have been installed with the lead wire termination reversed, which, in combination with a ribbon heater ground fault, led to a continuous ribbon heater heating condition. The FAA is proposing this AD to address faulty potable water-line ribbon heaters, which, if not corrected, could lead to an onboard fire. See the MCAI for additional background information. Related Service Information Under 1 CFR Part 51 Bombardier has issued Service Bulletin 601–0644, Revision 1, dated January 29, 2019, and Service Bulletin 604–30–007, Revision 1, dated January 29, 2019. This service information 7057 describes procedures for a general visual inspection of all affected potable waterline ribbon heater installations for any discrepancy and applicable corrective actions and other specified actions. Discrepancies include discoloration, blistering or cracking of insulation, signs of wear, or heat damage. Corrective actions include replacement of discrepant insulation and ribbon heaters. Other specified actions include identifying the potable water-line ribbon heater pigtail wire configuration, installing a fuse to the ribbon heater power lead, and testing the potable water-line heater system of each ribbon heater. These documents are distinct since they apply to different airplane models. 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. 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 AD Requirements in This NPRM This proposed AD would require accomplishing the actions specified in the service information already described. Costs of Compliance The FAA estimates that this AD, if adopted as proposed, would affect 585 airplanes of U.S. registry. The FAA estimates the following costs to comply with this proposed AD: khammond on DSKJM1Z7X2PROD with PROPOSALS ESTIMATED COSTS FOR REQUIRED ACTIONS Labor cost Parts cost Up to 30 work-hours × $85 per hour = Up to $2,550 .............. The FAA estimates the following costs to do any necessary on-condition action that would be required based on VerDate Sep<11>2014 15:47 Feb 07, 2022 Jkt 256001 $268 Cost per product Up to $2,818 ........................... the results of any required actions. The FAA has no way of determining the PO 00000 Frm 00010 Fmt 4702 Cost on U.S. operators Sfmt 4702 Up to $1,648,530. number of aircraft that might need this on-condition action: E:\FR\FM\08FEP1.SGM 08FEP1 7058 Federal Register / Vol. 87, No. 26 / Tuesday, February 8, 2022 / Proposed Rules ESTIMATED COSTS OF ON-CONDITION ACTIONS Labor cost Parts cost Up to 30 work-hours × $85 per hour = $2,550 ............................................................ Up to $39,552 * ......................................... Cost per product $42,102 * The parts cost for a single potable water-line ribbon heater and associated material is $4,944. The estimated cost above assumes the worst case scenario of replacing all eight ribbon heaters on an airplane configured with eight ribbon heaters. 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 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive: ■ Bombardier, Inc.: Docket No. FAA–2022– 0090; Project Identifier MCAI–2021– 00399–T. (a) Comments Due Date The FAA must receive comments on this airworthiness directive (AD) by March 25, 2022. (b) Affected ADs None. (c) Applicability This AD applies to Bombardier, Inc., airplanes certificated in any category, identified in paragraphs (c)(1) through (3) of this AD and equipped with any Cox & Co. 3043 or 3044 series (potable water-line) ribbon heater. (1) Model CL–600–1A11 (600) airplanes. (2) Model CL–600–2A12 (601) airplanes. (3) Model CL–600–2B16 (601–3A, 601–3R, and 604 Variants) airplanes. (d) Subject Air Transport Association (ATA) of America Code 3070, Ice and Rain Protection; Code 3810, Potable Water System. (e) Unsafe Condition This AD was prompted by a report of smoke in the aft cabin during a maintenance activity, which an investigation determined was caused by a faulty drain line ribbon heater. The FAA is issuing this AD to address faulty potable water-line ribbon heaters, which, if not corrected, could lead to an onboard fire. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Inspection of Potable Water-Line Ribbon Heater Installation and Insulation, Applicable Corrective Actions, and Other Specified Actions For airplanes with a serial number listed in Section 1.A of the applicable service information specified in figure 1 to paragraph (g) of this AD: Within 6 years after the effective date of this AD, do an inspection of the potable water-line ribbon heater installation and insulation to detect any discrepancy, and, before further flight, do all applicable corrective actions and other specified actions in accordance with the Accomplishment Instructions of the service information specified in figure 1 to paragraph (g) of this AD, as applicable. VerDate Sep<11>2014 Airplane Model Service Information Model CL-600-2A12 Bombardier Service Bulletin 601-0644, Revision 1, dated January 29, 2019 Model CL-600-2B16 Bombardier Service Bulletin 601-0644, Revision 1, dated January 29, 2019, or Bombardier Service Bulletin 604-30-007, Revision 1, dated January 29, 2019 15:47 Feb 07, 2022 Jkt 256001 PO 00000 Frm 00011 Fmt 4702 Sfmt 4725 E:\FR\FM\08FEP1.SGM 08FEP1 EP08FE22.001</GPH> khammond on DSKJM1Z7X2PROD with PROPOSALS Figure 1 to paragraph (g) - Service Information References khammond on DSKJM1Z7X2PROD with PROPOSALS Federal Register / Vol. 87, No. 26 / Tuesday, February 8, 2022 / Proposed Rules (h) Required Actions for Airplanes Not Listed in the Service Information For airplanes with a serial number that is not listed in section 1.A of the service information specified in figure 1 to paragraph (g) of this AD, and for Bombardier Model CL– 600–1A11 airplanes: Within 6 years after the effective date of this AD, do applicable actions including inspection for discrepancies of the potable water-line ribbon heater and repair of any discrepant potable water-line ribbon heaters using a method approved in accordance with the procedures specified in paragraph (i)(2) of this AD. Issued on February 2, 2022. Gaetano A. Sciortino, Deputy Director for Strategic Initiatives, Compliance & Airworthiness Division, Aircraft Certification Service. (i) 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 responsible Flight Standards 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 responsible Flight Standards Office. (2) Contacting the Manufacturer: For any requirement in this AD to obtain instructions 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 Bombardier, Inc.’s TCCA Design Approval Organization (DAO). If approved by the DAO, the approval must include the DAO-authorized signature. [Docket No. FAA–2020–1076; Project Identifier MCAI–2020–01201–A] (j) Related Information (1) Refer to Mandatory Continuing Airworthiness Information (MCAI) Canadian AD CF–2021–13, dated April 1, 2021, 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–2022–0090. (2) For more information about this AD, contact Thomas Niczky, Aerospace Engineer, Avionics and Electrical Systems Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516–228–7347; fax 516–794–5531; email 9-avs-nyaco-cos@faa.gov. (3) For service information identified in this AD, contact Bombardier Business Aircraft Customer Response Center, 400 CoˆteVertu Road West, Dorval, Que´bec H4S 1Y9, Canada; telephone 514–855–2999; email ac.yul@aero.bombardier.com; internet https:// www.bombardier.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. VerDate Sep<11>2014 15:47 Feb 07, 2022 Jkt 256001 [FR Doc. 2022–02513 Filed 2–7–22; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 RIN 2120–AA64 Airworthiness Directives; Viking Air Limited (Type Certificate Previously Held by Bombardier Inc. and de Havilland, Inc.) Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: The FAA proposes to adopt a new airworthiness directive (AD) for Viking Air Limited (Viking) (type certificate previously held by Bombardier Inc. and de Havilland, Inc.) Model DHC–3 airplanes. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as corrosion, wear, and fatigue-related degradation in aging aircraft. This proposed AD would require establishing a corrosion prevention and control program to identify and correct corrosion and cracking. This proposed AD would also require completing all of the initial tasks identified in the program and reporting corrosion findings to Viking. 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 March 25, 2022. ADDRESSES: You may send comments 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: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room SUMMARY: PO 00000 Frm 00012 Fmt 4702 Sfmt 4702 7059 W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this proposed AD, contact Viking Air Limited Technical Support, 1959 De Havilland Way, Sidney, British Columbia, Canada, V8L 5V5; phone: (North America) (800) 663–8444; fax: (250) 656–0673; email: technical.support@vikingair.com; website: https://www.vikingair.com/ support/service-bulletins. You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 901 Locust, Kansas City, MO 64106. For information on the availability of this material at the FAA, call (817) 222–5110. Examining the AD Docket You may examine the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA–2020–1076; 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, the MCAI, any comments received, and other information. The street address for Docket Operations is listed above. FOR FURTHER INFORMATION CONTACT: Deep Gaurav, Aviation Safety Engineer, New York ACO Branch, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (516) 228–7300; email: deep.gaurav@faa.gov. 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 ADDRESSES. Include ‘‘Docket No. FAA–2020–1076; Project Identifier MCAI–2020–01201–A’’ at the beginning of your comments. The most helpful comments reference a specific portion of the proposal, explain the reason for any recommended change, and include supporting data. The FAA will consider all comments received by the closing date and may amend this proposal because of those comments. Except for Confidential Business Information (CBI) as described in the following paragraph, and other information as described in 14 CFR 11.35, the FAA will post all comments received, without change, to https:// www.regulations.gov, including any personal information you provide. The agency will also post a report summarizing each substantive verbal contact received about this NPRM. E:\FR\FM\08FEP1.SGM 08FEP1

Agencies

[Federal Register Volume 87, Number 26 (Tuesday, February 8, 2022)]
[Proposed Rules]
[Pages 7056-7059]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-02513]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2022-0090; Project Identifier MCAI-2021-00399-T]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc., Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) 
for certain Bombardier, Inc., Model CL-600-1A11 (600), CL-600-2A12 
(601), and CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes. 
This proposed AD was prompted by a report of smoke in the aft cabin 
during a maintenance activity, which an investigation determined was 
caused by a faulty drain line ribbon heater. This proposed AD would 
require a general visual inspection of all affected potable water-line 
ribbon heater installations and corrective actions and other specified 
actions. 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 March 25, 
2022.

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 Bombardier 
Business Aircraft Customer Response Center, 400 C[ocirc]te-Vertu Road 
West, Dorval, Qu[eacute]bec H4S 1Y9, Canada; telephone 514-855-2999; 
email [email protected]; internet https://www.bombardier.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 at https://www.regulations.gov by 
searching for and locating Docket No. FAA-2022-0090; 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.

FOR FURTHER INFORMATION CONTACT: Thomas Niczky, Aerospace Engineer,

[[Page 7057]]

Avionics and Electrical Systems Section, FAA, New York ACO Branch, 1600 
Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7347; 
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 ADDRESSES. Include ``Docket No. FAA-2022-0090; Project Identifier 
MCAI-2021-00399-T'' at the beginning of your comments. The most helpful 
comments reference a specific portion of the proposal, explain the 
reason for any recommended change, and include supporting data. The FAA 
will consider all comments received by the closing date and may amend 
the proposal because of those comments.
    Except for Confidential Business Information (CBI) as described in 
the following paragraph, and other information as described in 14 CFR 
11.35, the FAA will post all comments received, without change, to 
https://www.regulations.gov, including any personal information you 
provide. The agency will also post a report summarizing each 
substantive verbal contact received about this NPRM.

Confidential Business Information

    CBI is commercial or financial information that is both customarily 
and actually treated as private by its owner. Under the Freedom of 
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public 
disclosure. If your comments responsive to this NPRM contain commercial 
or financial information that is customarily treated as private, that 
you actually treat as private, and that is relevant or responsive to 
this NPRM, it is important that you clearly designate the submitted 
comments as CBI. Please mark each page of your submission containing 
CBI as ``PROPIN.'' The FAA will treat such marked submissions as 
confidential under the FOIA, and they will not be placed in the public 
docket of this NPRM. Submissions containing CBI should be sent to 
Thomas Niczky, Aerospace Engineer, Avionics and Electrical Systems 
Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, 
Westbury, NY 11590; telephone 516-228-7347; fax 516-794-5531; email [email protected]. Any commentary that the FAA receives which is 
not specifically designated as CBI will be placed in the public docket 
for this rulemaking.

Background

    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued TCCA AD CF-2021-13, dated April 1, 
2021 (TCCA AD CF-2021-13) (also referred to after this as the Mandatory 
Continuing Airworthiness Information, or the MCAI), to correct an 
unsafe condition for Bombardier, Inc., Model CL-600-1A11 (600), CL-600-
2A12 (601), and CL-600-2B16 (601-3A, 601-3R, and 604 Variants) 
airplanes, equipped with any Cox & Co. 3043 or 3044 series (potable 
water-line) ribbon heater. You may examine the MCAI in the AD docket at 
https://www.regulations.gov by searching for and locating Docket No. 
FAA-2022-0090.
    This proposed AD was prompted by a report of smoke in the aft cabin 
during a maintenance activity, which an investigation determined was 
caused by a faulty drain line ribbon heater. The ribbon heater lead 
wires were found to have been installed with the lead wire termination 
reversed, which, in combination with a ribbon heater ground fault, led 
to a continuous ribbon heater heating condition. The FAA is proposing 
this AD to address faulty potable water-line ribbon heaters, which, if 
not corrected, could lead to an onboard fire. See the MCAI for 
additional background information.

Related Service Information Under 1 CFR Part 51

    Bombardier has issued Service Bulletin 601-0644, Revision 1, dated 
January 29, 2019, and Service Bulletin 604-30-007, Revision 1, dated 
January 29, 2019. This service information describes procedures for a 
general visual inspection of all affected potable water-line ribbon 
heater installations for any discrepancy and applicable corrective 
actions and other specified actions. Discrepancies include 
discoloration, blistering or cracking of insulation, signs of wear, or 
heat damage. Corrective actions include replacement of discrepant 
insulation and ribbon heaters. Other specified actions include 
identifying the potable water-line ribbon heater pigtail wire 
configuration, installing a fuse to the ribbon heater power lead, and 
testing the potable water-line heater system of each ribbon heater. 
These documents are distinct since they apply to different airplane 
models. 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.

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 AD Requirements in This NPRM

    This proposed AD would require accomplishing the actions specified 
in the service information already described.

Costs of Compliance

    The FAA estimates that this AD, if adopted as proposed, would 
affect 585 airplanes of U.S. registry. The FAA estimates the following 
costs to comply with this proposed AD:

                                      Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
               Labor cost                   Parts cost         Cost per product         Cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
Up to 30 work-hours x $85 per hour = Up             $268  Up to $2,818..............  Up to $1,648,530.
 to $2,550.
----------------------------------------------------------------------------------------------------------------

    The FAA estimates the following costs to do any necessary on-
condition action that would be required based on the results of any 
required actions. The FAA has no way of determining the number of 
aircraft that might need this on-condition action:

[[Page 7058]]



                 Estimated Costs of On-Condition Actions
------------------------------------------------------------------------
                                                             Cost per
            Labor cost                   Parts cost           product
------------------------------------------------------------------------
Up to 30 work-hours x $85 per hour  Up to $39,552 *.....         $42,102
 = $2,550.
------------------------------------------------------------------------
* The parts cost for a single potable water-line ribbon heater and
  associated material is $4,944. The estimated cost above assumes the
  worst case scenario of replacing all eight ribbon heaters on an
  airplane configured with eight ribbon heaters.

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:

Bombardier, Inc.: Docket No. FAA-2022-0090; Project Identifier MCAI-
2021-00399-T.

(a) Comments Due Date

    The FAA must receive comments on this airworthiness directive 
(AD) by March 25, 2022.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc., airplanes certificated in 
any category, identified in paragraphs (c)(1) through (3) of this AD 
and equipped with any Cox & Co. 3043 or 3044 series (potable water-
line) ribbon heater.
    (1) Model CL-600-1A11 (600) airplanes.
    (2) Model CL-600-2A12 (601) airplanes.
    (3) Model CL-600-2B16 (601-3A, 601-3R, and 604 Variants) 
airplanes.

(d) Subject

    Air Transport Association (ATA) of America Code 3070, Ice and 
Rain Protection; Code 3810, Potable Water System.

(e) Unsafe Condition

    This AD was prompted by a report of smoke in the aft cabin 
during a maintenance activity, which an investigation determined was 
caused by a faulty drain line ribbon heater. The FAA is issuing this 
AD to address faulty potable water-line ribbon heaters, which, if 
not corrected, could lead to an onboard fire.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Inspection of Potable Water-Line Ribbon Heater Installation and 
Insulation, Applicable Corrective Actions, and Other Specified Actions

    For airplanes with a serial number listed in Section 1.A of the 
applicable service information specified in figure 1 to paragraph 
(g) of this AD: Within 6 years after the effective date of this AD, 
do an inspection of the potable water-line ribbon heater 
installation and insulation to detect any discrepancy, and, before 
further flight, do all applicable corrective actions and other 
specified actions in accordance with the Accomplishment Instructions 
of the service information specified in figure 1 to paragraph (g) of 
this AD, as applicable.
[GRAPHIC] [TIFF OMITTED] TP08FE22.001


[[Page 7059]]



(h) Required Actions for Airplanes Not Listed in the Service 
Information

    For airplanes with a serial number that is not listed in section 
1.A of the service information specified in figure 1 to paragraph 
(g) of this AD, and for Bombardier Model CL-600-1A11 airplanes: 
Within 6 years after the effective date of this AD, do applicable 
actions including inspection for discrepancies of the potable water-
line ribbon heater and repair of any discrepant potable water-line 
ribbon heaters using a method approved in accordance with the 
procedures specified in paragraph (i)(2) of this AD.

(i) 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 responsible Flight Standards 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 
responsible Flight Standards Office.
    (2) Contacting the Manufacturer: For any requirement in this AD 
to obtain instructions 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 
Bombardier, Inc.'s TCCA Design Approval Organization (DAO). If 
approved by the DAO, the approval must include the DAO-authorized 
signature.

(j) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) Canadian AD CF-2021-13, dated April 1, 2021, 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-2022-0090.
    (2) For more information about this AD, contact Thomas Niczky, 
Aerospace Engineer, Avionics and Electrical Systems Section, FAA, 
New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 
11590; telephone 516-228-7347; fax 516-794-5531; email [email protected].
    (3) For service information identified in this AD, contact 
Bombardier Business Aircraft Customer Response Center, 400 
C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9, Canada; 
telephone 514-855-2999; email [email protected]; internet 
https://www.bombardier.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 February 2, 2022.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives, Compliance & Airworthiness 
Division, Aircraft Certification Service.
[FR Doc. 2022-02513 Filed 2-7-22; 8:45 am]
BILLING CODE 4910-13-P