Airworthiness Directives; Bombardier, Inc., Airplanes, 18921-18924 [2021-07429]

Download as PDF Federal Register / Vol. 86, No. 68 / Monday, April 12, 2021 / Proposed Rules sensitivity analysis tools, as appropriate, to evaluate the potential distribution of impacts of candidate/trial standard levels among different subgroups of consumers. The Department will consider impacts on significant segments of consumers in determining standards levels. Where there are significant negative impacts on identifiable subgroups, DOE will consider the efficacy of voluntary approaches as a means to achieve potential energy savings. (e) Payback period and first cost. (1) In the assessment of consumer impacts of standards, the Department will consider LifeCycle Cost, Payback Period, and Cost of Conserved Energy to evaluate the savings in operating expenses relative to increases in purchase price. The Department also performs sensitivity and scenario analyses when appropriate. The results of these analyses will be carried throughout the analysis and the ensuing uncertainty described. (2) If, in the analysis of consumer impacts, the Department determines that a candidate/ trial standard level would result in a substantial increase in product/equipment first costs to consumers or would not pay back such additional first costs through energy cost savings in less than three years, Department will assess the likely impacts of such a standard on low-income households, product/equipment sales and fuel switching, as appropriate. khammond on DSKJM1Z7X2PROD with PROPOSALS 15. Consideration of Non-Regulatory Approaches The Department recognizes that nonregulatory efforts by manufacturers, utilities, and other interested parties can result in substantial efficiency improvements. The Department intends to consider the likely effects of non-regulatory initiatives on product/equipment energy use, consumer utility and life-cycle costs, manufacturers, competition, utilities, and the environment, as well as the distribution of these impacts among different regions, consumers, manufacturers, and utilities. DOE will attempt to base its assessment on the actual impacts of such initiatives to date, but also will consider information presented regarding the impacts that any existing initiative might have in the future. Such information is likely to include a demonstration of the strong commitment of manufacturers, distribution channels, utilities, or others to such non-regulatory efficiency improvements. This information will be used in assessing the likely incremental impacts of establishing or revising standards, in assessing—where possible—appropriate compliance dates for new or revised standards, and in considering DOE support of non-regulatory initiatives. 16. Cross-Cutting Analytical Assumptions In selecting values for certain cross-cutting analytical assumptions, DOE expects to continue relying upon the following sources and general principles: (a) Underlying economic assumptions. The appliance standards analyses will generally use the same economic growth and development assumptions that underlie the most current Annual Energy Outlook (AEO) VerDate Sep<11>2014 16:12 Apr 09, 2021 Jkt 253001 published by the Energy Information Administration (EIA). (b) Analytic time length. The appliance standards analyses will use two time lengths—30 years and another time length that is specific to the standard being considered such as the useful lifetime of the product under consideration. As a sensitivity case, the analyses will also use a 9-year regulatory timeline in analyzing the effects of the standard. (c) Energy price and demand trends. Analyses of the likely impact of appliance standards on typical users will generally adopt the mid-range energy price and demand scenario of the EIA’s most current AEO. The sensitivity of such estimated impacts to possible variations in future energy prices are likely to be examined using the EIA’s high and low energy price scenarios. (d) Product/equipment-specific energyefficiency trends, without updated standards. Product/equipment-specific energy-efficiency trends will be based on a combination of the efficiency trends forecast by the EIA’s residential and commercial demand model of the National Energy Modeling System (NEMS) and product-specific assessments by DOE and its contractors with input from interested parties. (e) Price forecasting. DOE will endeavor to use robust price forecasting techniques in projecting future prices of products. (f) Private Discount rates. For residential and commercial consumers, ranges of three different real discount rates will be used. For residential consumers, the mid-range discount rate will represent DOE’s approximation of the average financing cost (or opportunity costs of reduced savings) experienced by typical consumers. Sensitivity analyses will be performed using discount rates reflecting the costs more likely to be experienced by residential consumers with little or no savings and credit card financing and consumers with substantial savings. For commercial users, a mid-range discount rate reflecting DOE’s approximation of the average real rate of return on commercial investment will be used, with sensitivity analyses being performed using values indicative of the range of real rates of return likely to be experienced by typical commercial businesses. For national net present value calculations, DOE would use the Administration’s approximation of the average real rate of return on private investment in the U.S. economy. For manufacturer impacts, DOE typically uses a range of real discount rates which are representative of the real rates of return experienced by typical U.S. manufacturers affected by the program. (g) Social Discount Rates. Social discount rates as specified in OMB Circular A–4 will be used in assessing social effects such as costs and benefits. (h) Environmental impacts. (1) DOE calculates emission reductions of carbon dioxide, sulfur dioxide, nitrogen oxides, methane, nitrous oxides, and mercury likely to be avoided by candidate/trial standard levels based on an emissions analysis that includes the two components described in paragraphs (h)(2) and (3) of this section. PO 00000 Frm 00021 Fmt 4702 Sfmt 4702 18921 (2) The first component estimates the effect of potential candidate/trial standard levels on power sector and site combustion emissions of carbon dioxide, nitrogen oxides, sulfur dioxide, mercury, methane, and nitrous oxide. DOE develops the power sector emissions analysis using a methodology based on DOE’s latest Annual Energy Outlook. For site combustion of natural gas or petroleum fuels, the combustion emissions of carbon dioxide and nitrogen oxides are estimated using emission intensity factors from the Environmental Protection Agency. (3) The second component of DOE’s emissions analysis estimates the effect of potential candidate/trial standard levels on emissions of carbon dioxide, nitrogen oxides, sulfur dioxide, mercury, methane, and nitrous oxide due to ‘‘upstream activities’’ in the fuel production chain. These upstream activities include the emissions related to extracting, processing, and transporting fuels to the site of combustion as detailed in DOE’s Fuel-Fuel-Cycle Statement of Policy (76 FR 51281 (August 18, 2011)). DOE will consider the effects of the candidate/trial standard levels on these emissions after assessing the seven factors required to demonstrate economic justification under EPCA. Consistent with Executive Order 13783, dated March 28, 2017, when monetizing the value of changes in reductions in CO2 and nitrous oxides emissions resulting from its energy conservation standards regulations, including with respect to the consideration of domestic versus international impacts and the consideration of appropriate discount rates, DOE ensures, to the extent permitted by law, that any such estimates are consistent with the guidance contained in OMB Circular A–4 of September 17, 2003 (Regulatory Analysis). [FR Doc. 2021–06853 Filed 4–9–21; 8:45 am] BILLING CODE 6450–01–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2021–0272; Project Identifier MCAI–2020–01485–T] RIN 2120–AA64 Airworthiness Directives; Bombardier, 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 certain Bombardier, Inc., Model BD– 100–1A10 airplanes. This proposed AD was prompted by a report that certain airplanes have navigation units with outdated magnetic variation (MagVar) tables. This proposed AD would require revising the existing airplane flight SUMMARY: E:\FR\FM\12APP1.SGM 12APP1 18922 Federal Register / Vol. 86, No. 68 / Monday, April 12, 2021 / Proposed Rules manual (AFM) and applicable corresponding operational procedures to update the flight management system (FMS) limitations. 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 May 27, 2021. 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, Inc., 200 Coˆte-Vertu Road West, Dorval, Que´bec H4S 2A3, Canada; North America toll-free telephone 1–866–538– 1247 or direct-dial telephone 1–514– 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. khammond on DSKJM1Z7X2PROD with PROPOSALS Examining the AD Docket You may examine the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA–2021–0272; 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, 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. VerDate Sep<11>2014 16:12 Apr 09, 2021 Jkt 253001 FAA–2021–0272; Project Identifier MCAI–2020–01485–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– 2020–33, dated September 29, 2020 (also referred to after this as the Mandatory Continuing Airworthiness Information, or the MCAI), to correct an unsafe condition for certain Bombardier, Inc., Model BD–100–1A10 airplanes. You may examine the MCAI in the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA–2021–0272. PO 00000 Frm 00022 Fmt 4702 Sfmt 4702 This proposed AD was prompted by a report that certain airplanes have navigation units with outdated MagVar tables. The FAA is proposing this AD to address outdated MagVar tables inside navigation systems, which can affect the performance of the navigation systems and result in the presentation of misleading magnetic heading references on the primary flight displays (PFDs) and multi-function displays (MFDs), positioning the airplane outside of the terrain and obstacle protection provided by instrument flight procedures and flight route designs, and can lead to significantly inaccurate heading, course, and bearing calculations. See the MCAI for additional background information. Related Service Information Under 1 CFR Part 51 Bombardier has issued the following service information. This service information describes procedures for revising the existing AFM to update the FMS limitations. These documents are distinct since they apply to different airplane configurations. • Flight Management System (FMS) limitation in Section 02–04—Systems Limitations, of Chapter 02—Limitations, of the Challenger 300 Airplane Flight Manual (Imperial Version), Publication No. CSP 100–1, Revision 58, dated January 15, 2020. (For obtaining the FMS limitation for Bombardier Challenger 300 Airplane Flight Manual (Imperial Version), Publication No. CSP 100–1, use Document Identification No. CH 300 AFM–I.) • FMS limitation in Section 02–04— Systems Limitations, of Chapter 02— Limitations, of the Challenger 300 Airplane Flight Manual (Metric Version), Publication No. CSP 100–1 (Metric), Revision 58, dated January 15, 2020. (For obtaining the FMS limitation for Bombardier Challenger 300 Airplane Flight Manual (Metric Version), Publication No. CSP 100–1 (Metric), use Document Identification No. CH 300 AFM–M.) 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 E:\FR\FM\12APP1.SGM 12APP1 Federal Register / Vol. 86, No. 68 / Monday, April 12, 2021 / Proposed Rules 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. 18923 Costs of Compliance The FAA estimates that this AD, if adopted as proposed, would affect 318 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 1 work-hour × $85 per hour = $85 .............................................................................................. $0 $85 $27,030 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. (2) Would not affect intrastate aviation in Alaska, and (3) Would not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. (c) Applicability List of Subjects in 14 CFR Part 39 Air Transport Association (ATA) of America Code 34, Navigation. Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. (e) Unsafe Condition 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. Regulatory Findings khammond on DSKJM1Z7X2PROD with PROPOSALS 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, VerDate Sep<11>2014 16:12 Apr 09, 2021 Jkt 253001 § 39.13 2. The FAA amends § 39.13 by adding the following new airworthiness directive: Bombardier, Inc.: Docket No. FAA–2021– 0272; Project Identifier MCAI–2020– 01485–T. (a) Comments Due Date The FAA must receive comments on this airworthiness directive (AD) by May 27, 2021. (b) Affected ADs None. Frm 00023 Fmt 4702 (d) Subject This AD was prompted by a report that certain airplanes have navigation units with outdated magnetic variation (MagVar) tables. The FAA is issuing this AD to address outdated MagVar tables inside navigation systems, which can affect the performance of the navigation systems and result in the presentation of misleading magnetic heading references on the primary flight displays (PFDs) and multi-function displays (MFDs), positioning the airplane outside of the terrain and obstacle protection provided by instrument flight procedures and flight route designs, and can lead to significantly inaccurate heading, course, and bearing calculations. (f) Compliance [Amended] ■ PO 00000 This AD applies to Bombardier, Inc., Model BD–100–1A10 airplanes, certificated in any category, serial numbers 20003 through 20407 inclusive, equipped with FMC–5000 flight management computers. Sfmt 4702 Comply with this AD within the compliance times specified, unless already done. (g) Revision of the Airplane Flight Manual (AFM) Within 60 days after the effective date of this AD: Revise the existing AFM and applicable corresponding operational procedures to incorporate the information specified in the Flight Management System (FMS) limitation in Section 02–04—Systems Limitations, of Chapter 02—Limitations, of the applicable AFM, specified in figure 1 to paragraph (g) of this AD. E:\FR\FM\12APP1.SGM 12APP1 18924 Federal Register / Vol. 86, No. 68 / Monday, April 12, 2021 / Proposed Rules Figure 1 to paragraph (g) - AFM Revision Bombardier, Inc., ModelBD-100-lAl0 airplanes AFM- Publication No.CSP 100-1 Revision- Dated- Bombardier 58 January 15, 2020 Challenger 300 Airplane Flight Manual (Imperial Version) 1 BD-100-1 A 10 Bombardier CSP 100-1 58 January 15, 2020 airplanes Challenger 300 (Metric) Airplane Flight Manual (Metric Version)2 1 For obtaining the FMS limitation for Bombardier Challenger 300 Airplane Flight Manual (Imperial Version), Publication No. CSP 100-1, use Document Identification No. CH 300 AFM-1. For obtaining the FMS limitation for Bombardier Challenger 300 Airplane Flight Manual (Metric Version), Publication No. CSP 100-1 (Metric), use Document Identification No. CH 300 AFM-M. 2 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. https://www.regulations.gov by searching for and locating Docket No. FAA–2021–0272. (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, Inc., 200 CoˆteVertu Road West, Dorval, Que´bec H4S 2A3, Canada; North America toll-free telephone 1– 866–538–1247 or direct-dial telephone 1– 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. Issued on April 7, 2021. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2021–07429 Filed 4–9–21; 8:45 am] BILLING CODE 4910–13–P (i) Related Information (1) Refer to Mandatory Continuing Airworthiness Information (MCAI) TCCA AD CF–2020–33, dated September 29, 2020, for related information. This MCAI may be found in the AD docket on the internet at VerDate Sep<11>2014 16:12 Apr 09, 2021 Jkt 253001 PO 00000 Frm 00024 Fmt 4702 Sfmt 4702 DEPARTMENT OF LABOR Occupational Safety and Health Administration 29 CFR Part 1910 [Docket No. OSHA–2019–0001] RIN 1218–AC93 Hazard Communication Standard Occupational Safety and Health Administration (OSHA), Labor. ACTION: Proposed rule; extension of comment period. AGENCY: The period for submitting public comments is being extended by 30 days to allow stakeholders interested in the proposed rule additional time to review the proposed rule and collect information and data necessary for comment. SUMMARY: The comment period for the proposed rule that published at 86 FR 9576 on February 16, 2021, is extended. Comments on the NPRM (including requests for hearing) and other information must be submitted by May 19, 2021. Informal public hearing: OSHA will schedule an informal public hearing on the proposed rule if requested during the comment period. If a hearing is requested, the location and date of the DATES: E:\FR\FM\12APP1.SGM 12APP1 EP12AP21.023</GPH> khammond on DSKJM1Z7X2PROD with PROPOSALS (h) Other FAA AD Provisions

Agencies

[Federal Register Volume 86, Number 68 (Monday, April 12, 2021)]
[Proposed Rules]
[Pages 18921-18924]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-07429]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2021-0272; Project Identifier MCAI-2020-01485-T]
RIN 2120-AA64


Airworthiness Directives; 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 Bombardier, Inc., Model BD-100-1A10 airplanes. This 
proposed AD was prompted by a report that certain airplanes have 
navigation units with outdated magnetic variation (MagVar) tables. This 
proposed AD would require revising the existing airplane flight

[[Page 18922]]

manual (AFM) and applicable corresponding operational procedures to 
update the flight management system (FMS) limitations. 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 May 27, 
2021.

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, Inc., 200 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec 
H4S 2A3, Canada; North America toll-free telephone 1-866-538-1247 or 
direct-dial telephone 1-514-855-2999; 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-2021-0272; 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, 
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-2021-0272; Project Identifier 
MCAI-2020-01485-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-2020-33, dated September 
29, 2020 (also referred to after this as the Mandatory Continuing 
Airworthiness Information, or the MCAI), to correct an unsafe condition 
for certain Bombardier, Inc., Model BD-100-1A10 airplanes. You may 
examine the MCAI in the AD docket at https://www.regulations.gov by 
searching for and locating Docket No. FAA-2021-0272.
    This proposed AD was prompted by a report that certain airplanes 
have navigation units with outdated MagVar tables. The FAA is proposing 
this AD to address outdated MagVar tables inside navigation systems, 
which can affect the performance of the navigation systems and result 
in the presentation of misleading magnetic heading references on the 
primary flight displays (PFDs) and multi-function displays (MFDs), 
positioning the airplane outside of the terrain and obstacle protection 
provided by instrument flight procedures and flight route designs, and 
can lead to significantly inaccurate heading, course, and bearing 
calculations. See the MCAI for additional background information.

Related Service Information Under 1 CFR Part 51

    Bombardier has issued the following service information. This 
service information describes procedures for revising the existing AFM 
to update the FMS limitations. These documents are distinct since they 
apply to different airplane configurations.
     Flight Management System (FMS) limitation in Section 02-
04--Systems Limitations, of Chapter 02--Limitations, of the Challenger 
300 Airplane Flight Manual (Imperial Version), Publication No. CSP 100-
1, Revision 58, dated January 15, 2020. (For obtaining the FMS 
limitation for Bombardier Challenger 300 Airplane Flight Manual 
(Imperial Version), Publication No. CSP 100-1, use Document 
Identification No. CH 300 AFM-I.)
     FMS limitation in Section 02-04--Systems Limitations, of 
Chapter 02--Limitations, of the Challenger 300 Airplane Flight Manual 
(Metric Version), Publication No. CSP 100-1 (Metric), Revision 58, 
dated January 15, 2020. (For obtaining the FMS limitation for 
Bombardier Challenger 300 Airplane Flight Manual (Metric Version), 
Publication No. CSP 100-1 (Metric), use Document Identification No. CH 
300 AFM-M.)
    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

[[Page 18923]]

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 318 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
----------------------------------------------------------------------------------------------------------------
1 work-hour x $85 per hour = $85.............................              $0              $85          $27,030
----------------------------------------------------------------------------------------------------------------

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) Would not affect intrastate aviation in Alaska, and
    (3) Would 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-2021-0272; Project Identifier MCAI-
2020-01485-T.

(a) Comments Due Date

    The FAA must receive comments on this airworthiness directive 
(AD) by May 27, 2021.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc., Model BD-100-1A10 
airplanes, certificated in any category, serial numbers 20003 
through 20407 inclusive, equipped with FMC-5000 flight management 
computers.

(d) Subject

    Air Transport Association (ATA) of America Code 34, Navigation.

(e) Unsafe Condition

    This AD was prompted by a report that certain airplanes have 
navigation units with outdated magnetic variation (MagVar) tables. 
The FAA is issuing this AD to address outdated MagVar tables inside 
navigation systems, which can affect the performance of the 
navigation systems and result in the presentation of misleading 
magnetic heading references on the primary flight displays (PFDs) 
and multi-function displays (MFDs), positioning the airplane outside 
of the terrain and obstacle protection provided by instrument flight 
procedures and flight route designs, and can lead to significantly 
inaccurate heading, course, and bearing calculations.

(f) Compliance

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

(g) Revision of the Airplane Flight Manual (AFM)

    Within 60 days after the effective date of this AD: Revise the 
existing AFM and applicable corresponding operational procedures to 
incorporate the information specified in the Flight Management 
System (FMS) limitation in Section 02-04--Systems Limitations, of 
Chapter 02--Limitations, of the applicable AFM, specified in figure 
1 to paragraph (g) of this AD.

[[Page 18924]]

[GRAPHIC] [TIFF OMITTED] TP12AP21.023

(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 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.

(i) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) TCCA AD CF-2020-33, dated September 29, 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-2021-0272.
    (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, Inc., 200 C[ocirc]te-Vertu Road West, Dorval, 
Qu[eacute]bec H4S 2A3, Canada; North America toll-free telephone 1-
866-538-1247 or direct-dial telephone 1-514-855-2999; 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 April 7, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification 
Service.
[FR Doc. 2021-07429 Filed 4-9-21; 8:45 am]
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