Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Airplanes, 26374-26375 [2020-09113]

Download as PDF jbell on DSKJLSW7X2PROD with PROPOSALS 26374 Federal Register / Vol. 85, No. 86 / Monday, May 4, 2020 / Proposed Rules postal mail also will be posted to https:// 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. If you submit via postal mail or hand delivery/ courier, please provide all items on a CD, if feasible. It is not necessary to submit printed copies. No facsimiles (faxes) will be accepted. 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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. Submit these documents via email or on a CD, if feasible. 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 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 VerDate Sep<11>2014 17:15 May 01, 2020 Jkt 250001 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. that published in the Federal Register on June 22, 2018, regarding an unsafe condition with certain Bombardier, Inc. Model DHC–8–400 series airplanes. Since issuance of the NPRM, the FAA determined that additional actions are necessary to address the unsafe condition and that the applicability should be expanded to include additional airplane serial numbers. Accordingly, the NPRM is withdrawn. DATES: As of May 4, 2020, the proposed rule, which was published in the Federal Register on June 22, 2018 (83 FR 29059), is withdrawn. ADDRESSES: Signing Authority This document of the Department of Energy was signed on April 2, 2020, by Alexander N. Fitzsimmons, Deputy Assistant Secretary for Energy Efficiency, 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. 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–2018– 0548; 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 AD action, the regulatory evaluation, any comments received, and other information. The street address for Docket Operations is U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. FOR FURTHER INFORMATION CONTACT: Joseph Catanzaro, Aerospace Engineer, Propulsion Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516–228–7366; fax 516–794– 5531. SUPPLEMENTARY INFORMATION: Signed in Washington, DC, on April 22, 2020. Treena V. Garrett, Federal Register Liaison Officer, U.S. Department of Energy. [FR Doc. 2020–08852 Filed 5–1–20; 8:45 am] BILLING CODE 6450–01–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2018–0548; Product Identifier 2017–NM–184–AD] RIN 2120–AA64 Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Proposed rule; withdrawal. AGENCY: The FAA is withdrawing a notice of proposed rulemaking (NPRM) SUMMARY: PO 00000 Frm 00006 Fmt 4702 Sfmt 4702 Discussion The FAA issued an NPRM that proposed to amend 14 CFR part 39 by adding an AD that would have applied to the specified products. The NPRM was published in the Federal Register on June 22, 2018 (83 FR 29059). The NPRM would have required, depending on airplane configuration: Increasing the hole size in the collector tank partition wall, inspecting the motive flow line for damage, and replacing the associated grommet and motive flow line; replacing the affected single nut plate brackets and standoffs at the affected stations on the motive flow line and pressure relief line; and inspecting the motive flow line and vent line at certain wing stations, and inspecting the fuel tubes, to verify that an appropriate clearance has been maintained between the fuel tubes and their support brackets, and applicable corrective actions. The NPRM was prompted by a report of broken P-clamps on the E:\FR\FM\04MYP1.SGM 04MYP1 Federal Register / Vol. 85, No. 86 / Monday, May 4, 2020 / Proposed Rules pressure relief line and the motive flow line in the left and right fuel tanks, and fouling conditions between the motive flow line and the collector tank partition wall in both fuel tanks. The NPRM proposed to correct an unsafe condition for the specified products. Actions Since the NPRM Was Issued Since issuance of the NPRM, the FAA has determined that additional information was needed in the service information regarding the relocation of certain TeflonTM sleeves and that inaccurate production and maintenance manual instructions could have caused TeflonTM sleeves to be incorrectly installed on the vent line. The incorrect installation of Teflon TM sleeves could lead to arcing between the vent line and airplane structure, resulting in possible fuel tank ignition, in the event of a lightning strike. In light of this information, the FAA is considering further rulemaking. In addition, Bombardier revised Service Bulletin 84–28–19 and issued additional service information to provide instructions regarding the proper installation of TeflonTM sleeves on the vent line by providing electrical isolation to preclude the risk of lightning strike-induced fuel tank ignition, and installation of TeflonTM sleeves on the vent line at additional wing stations. The FAA has also determined that the applicability should be expanded to include additional airplane serial numbers. Furthermore, the FAA has determined that to adequately address the unsafe condition, the airworthiness limitations should be revised and that the use of certain maintenance procedures should be prohibited. Withdrawal of the NPRM constitutes only such action and does not preclude the FAA from further rulemaking on this issue, nor does it commit the FAA to any course of action in the future. jbell on DSKJLSW7X2PROD with PROPOSALS Explanation of Change to Manufacturer’s Name Specified in the NPRM The FAA has revised references to the manufacturer’s name specified in the NPRM to identify the manufacturer name as published in the most recent type certificate data sheet for the affected models. FAA’s Conclusion Upon further consideration, the FAA has determined that the NPRM does not adequately address the identified unsafe condition. Accordingly, the NPRM is withdrawn. VerDate Sep<11>2014 17:15 May 01, 2020 Jkt 250001 Regulatory Findings Since this action only withdraws an NPRM, it is neither a proposed nor a final rule. This action therefore is not covered under Executive Order 12866, the Regulatory Flexibility Act, or DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979). List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. The Withdrawal Accordingly, the notice of proposed rulemaking, Docket No. FAA–2018– 0548, which was published in the Federal Register on June 22, 2018 (83 FR 29059), is withdrawn. ■ Issued on April 23, 2020. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2020–09113 Filed 5–1–20; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2020–0394; Project Identifier AD–2019–00141–E] RIN 2120–AA64 Airworthiness Directives; Honeywell International Inc. Turbofan Engines Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: The FAA proposes to adopt a new airworthiness directive (AD) for all Honeywell International Inc. ALF502L, ALF502L–2, ALF502L–2A, ALF502L– 2C, ALF502L–3, ALF502R–3, ALF502R– 3A, ALF502R–4, ALF502R–5, ALF502R–6, LF507–1F, and LF507–1H model turbofan engines. This proposed AD was prompted by a report of an engine experiencing an uncontained release of low-pressure turbine (LPT) blades. This proposed AD would require initial and repetitive visual inspections of the overspeed fuel solenoid valve assembly and the fuel filter outlet. Depending on the results of these inspections, the AD may require inspection of the adjacent fuel system tube assemblies as well as replacement or overhaul of the overspeed fuel solenoid valve assembly. This proposed AD would also require periodic overhaul of the overspeed fuel solenoid SUMMARY: PO 00000 Frm 00007 Fmt 4702 Sfmt 4702 26375 valve assembly. 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 June 18, 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 Honeywell International Inc., 111 S 34th Street, Phoenix, Arizona 85034–2802, United States; phone: 800–601–3099; website: https://aerospace.honeywell.com/en#/. You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 1200 District Avenue, Burlington, MA 01803. For information on the availability of this material at the FAA, call 781–238–7759. 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– 0394; 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: Mark Matzke, Aerospace Engineer, Los Angeles ACO Branch, FAA, 3960 Paramount Boulevard, Lakewood, CA 90712–4137; phone: 562–627–5312; fax: 562–627–5210; email: mark.matzke@ 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 the ADDRESSES section. Include ‘‘Docket No. FAA–2020–0394; Project Identifier AD–2019–00141–E’’ at the beginning of your comments. The FAA E:\FR\FM\04MYP1.SGM 04MYP1

Agencies

[Federal Register Volume 85, Number 86 (Monday, May 4, 2020)]
[Proposed Rules]
[Pages 26374-26375]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-09113]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0548; Product Identifier 2017-NM-184-AD]
RIN 2120-AA64


Airworthiness Directives; De Havilland Aircraft of Canada Limited 
(Type Certificate Previously Held by Bombardier, Inc.) Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Proposed rule; withdrawal.

-----------------------------------------------------------------------

SUMMARY: The FAA is withdrawing a notice of proposed rulemaking (NPRM) 
that published in the Federal Register on June 22, 2018, regarding an 
unsafe condition with certain Bombardier, Inc. Model DHC-8-400 series 
airplanes. Since issuance of the NPRM, the FAA determined that 
additional actions are necessary to address the unsafe condition and 
that the applicability should be expanded to include additional 
airplane serial numbers. Accordingly, the NPRM is withdrawn.

DATES: As of May 4, 2020, the proposed rule, which was published in the 
Federal Register on June 22, 2018 (83 FR 29059), is withdrawn.

ADDRESSES: 

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-2018-
0548; 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 AD action, the regulatory evaluation, any comments received, and 
other information. The street address for Docket Operations is U.S. 
Department of Transportation, Docket Operations, M-30, West Building 
Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 
20590.

FOR FURTHER INFORMATION CONTACT: Joseph Catanzaro, Aerospace Engineer, 
Propulsion Section, FAA, New York ACO Branch, 1600 Stewart Avenue, 
Suite 410, Westbury, NY 11590; telephone 516-228-7366; fax 516-794-
5531.

SUPPLEMENTARY INFORMATION: 

Discussion

    The FAA issued an NPRM that proposed to amend 14 CFR part 39 by 
adding an AD that would have applied to the specified products. The 
NPRM was published in the Federal Register on June 22, 2018 (83 FR 
29059). The NPRM would have required, depending on airplane 
configuration: Increasing the hole size in the collector tank partition 
wall, inspecting the motive flow line for damage, and replacing the 
associated grommet and motive flow line; replacing the affected single 
nut plate brackets and standoffs at the affected stations on the motive 
flow line and pressure relief line; and inspecting the motive flow line 
and vent line at certain wing stations, and inspecting the fuel tubes, 
to verify that an appropriate clearance has been maintained between the 
fuel tubes and their support brackets, and applicable corrective 
actions. The NPRM was prompted by a report of broken P-clamps on the

[[Page 26375]]

pressure relief line and the motive flow line in the left and right 
fuel tanks, and fouling conditions between the motive flow line and the 
collector tank partition wall in both fuel tanks. The NPRM proposed to 
correct an unsafe condition for the specified products.

Actions Since the NPRM Was Issued

    Since issuance of the NPRM, the FAA has determined that additional 
information was needed in the service information regarding the 
relocation of certain TeflonTM sleeves and that inaccurate 
production and maintenance manual instructions could have caused 
TeflonTM sleeves to be incorrectly installed on the vent 
line. The incorrect installation of Teflon TM sleeves could 
lead to arcing between the vent line and airplane structure, resulting 
in possible fuel tank ignition, in the event of a lightning strike. In 
light of this information, the FAA is considering further rulemaking.
    In addition, Bombardier revised Service Bulletin 84-28-19 and 
issued additional service information to provide instructions regarding 
the proper installation of TeflonTM sleeves on the vent line 
by providing electrical isolation to preclude the risk of lightning 
strike-induced fuel tank ignition, and installation of 
TeflonTM sleeves on the vent line at additional wing 
stations. The FAA has also determined that the applicability should be 
expanded to include additional airplane serial numbers. Furthermore, 
the FAA has determined that to adequately address the unsafe condition, 
the airworthiness limitations should be revised and that the use of 
certain maintenance procedures should be prohibited.
    Withdrawal of the NPRM constitutes only such action and does not 
preclude the FAA from further rulemaking on this issue, nor does it 
commit the FAA to any course of action in the future.

Explanation of Change to Manufacturer's Name Specified in the NPRM

    The FAA has revised references to the manufacturer's name specified 
in the NPRM to identify the manufacturer name as published in the most 
recent type certificate data sheet for the affected models.

FAA's Conclusion

    Upon further consideration, the FAA has determined that the NPRM 
does not adequately address the identified unsafe condition. 
Accordingly, the NPRM is withdrawn.

Regulatory Findings

    Since this action only withdraws an NPRM, it is neither a proposed 
nor a final rule. This action therefore is not covered under Executive 
Order 12866, the Regulatory Flexibility Act, or DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979).

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

The Withdrawal

0
Accordingly, the notice of proposed rulemaking, Docket No. FAA-2018-
0548, which was published in the Federal Register on June 22, 2018 (83 
FR 29059), is withdrawn.

    Issued on April 23, 2020.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification 
Service.
[FR Doc. 2020-09113 Filed 5-1-20; 8:45 am]
BILLING CODE 4910-13-P
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