Proposed Rule2022-02141
Airworthiness Directives; Bombardier, Inc., Airplanes
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
February 3, 2022
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes. This proposed AD was prompted by reports of oxygen leaks caused by cracked, brittle, or broken oxygen hoses that were found during scheduled maintenance tests of the airplane oxygen system. This proposed AD would require an inspection of the oxygen hose assembly to determine if an affected part number is installed, and replacement of affected oxygen hoses. For certain airplanes, this proposed AD would allow repetitive testing of the oxygen system until affected hoses are replaced. This proposed AD would also prohibit installation of an affected oxygen hose. The FAA is proposing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 87 Issue 23 (Thursday, February 3, 2022)</title>
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[Federal Register Volume 87, Number 23 (Thursday, February 3, 2022)]
[Proposed Rules]
[Pages 6082-6086]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-02141]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-0085; Project Identifier MCAI-2021-00498-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 BD-700-1A10 and BD-700-1A11
airplanes. This proposed AD was prompted by reports of oxygen leaks
caused by cracked, brittle, or broken oxygen hoses that were found
during scheduled maintenance tests of the airplane oxygen system. This
proposed AD would require an inspection of the oxygen hose assembly to
determine if an affected part number is installed, and replacement of
affected oxygen hoses. For certain airplanes, this proposed AD would
allow repetitive testing of the oxygen system until affected hoses are
replaced. This proposed AD would also prohibit installation of an
affected oxygen hose. 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 21,
2022.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
<bullet> Federal eRulemaking Portal: Go to <a href="https://www.regulations.gov">https://www.regulations.gov</a>. Follow the instructions for submitting comments.
<bullet> Fax: 202-493-2251.
<bullet> 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.
<bullet> 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 <a href="/cdn-cgi/l/email-protection#c2a3a1ecbbb7ae82a3a7b0adeca0adafa0a3b0a6aba7b0eca1adaf"><span class="__cf_email__" data-cfemail="1071733e69657c507175627f3e727f7d727162747975623e737f7d">[email protected]</span></a>; internet <a href="https://www.bombardier.com">https://www.bombardier.com</a>.
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 <a href="https://www.regulations.gov">https://www.regulations.gov</a> by
searching for and locating Docket No. FAA-2022-0085; 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: Elizabeth Dowling, Aerospace Engineer,
Mechanical Systems and Administrative Services Section, FAA, New York
ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone 516-228-7300; fax 516-794-5531; email <a href="/cdn-cgi/l/email-protection#e7deca869194ca899e868488ca848894a7818686c9808891"><span class="__cf_email__" data-cfemail="162f3b7760653b786f7775793b7579655670777738717960">[email protected]</span></a>.
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-2022-0085; Project Identifier
MCAI-2021-00498-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
<a href="https://www.regulations.gov">https://www.regulations.gov</a>, 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
Elizabeth Dowling, Aerospace Engineer, Mechanical Systems and
Administrative Services Section, FAA, New York ACO Branch, 1600 Stewart
Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7300; fax 516-
794-5531; email <a href="/cdn-cgi/l/email-protection#4f76622e393c6221362e2c20622c203c0f292e2e61282039"><span class="__cf_email__" data-cfemail="b98094d8cfca94d7c0d8dad694dad6caf9dfd8d897ded6cf">[email protected]</span></a>. 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
[[Page 6083]]
for Canada, has issued TCCA AD CF-2021-17, dated April 28, 2021 (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-700-1A10 and BD-700-1A11 airplanes. You may
examine the MCAI in the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by
searching for and locating Docket No. FAA-2022-0085.
This proposed AD was prompted by reports of oxygen leaks caused by
cracked, brittle, or broken oxygen hoses that were found during
scheduled maintenance tests of the airplane oxygen system. The FAA is
proposing this AD to prevent a leak in the oxygen line, which may
result in failure to provide oxygen to passengers and crew and result
in an oxygen-enriched atmosphere creating a fire risk on the airplane.
See the MCAI for additional background information.
Related Service Information Under 1 CFR Part 51
Bombardier has issued the following service information.
<bullet> Bombardier Service Bulletin 700-1A11-35-014, Revision 01,
dated February 12, 2021.
<bullet> Bombardier Service Bulletin 700-35-015, Revision 01, dated
February 12, 2021.
<bullet> Bombardier Service Bulletin 700-35-5005, Revision 01,
dated February 12, 2021.
<bullet> Bombardier Service Bulletin 700-35-6005, Revision 01,
dated February 12, 2021.
<bullet> Bombardier Service Bulletin 700-35-6501, Revision 01,
dated February 12, 2021.
This service information describes procedures for doing an
inspection of the oxygen hose assembly installations to determine if a
part number within the series O2C20T1 is installed, and replacing the
oxygen hose if necessary. For certain airplanes, the service
information specifies optional repetitive testing of the oxygen system
that would allow for delay of the replacement. These documents are
distinct since they apply to different airplane serial numbers.
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. This proposed AD would
also prohibit installation of an affected oxygen hose.
Costs of Compliance
The FAA estimates that this AD, if adopted as proposed, would
affect 409 airplanes of U.S. registry. The FAA estimates the following
costs to comply with this proposed AD:
Estimated Costs for Required Actions
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Labor cost Parts cost Cost per product Cost on U.S. operators
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Up to 36 work-hours x $85 per hour = Up $0 Up to $3,060.............. Up to $1,251,540.
to $3,060.
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Estimated Costs for Optional Actions
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Labor cost Parts cost Cost per product
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Up to 25 work-hours x $85 per Up to $125........ Up to $2,250.
hour = Up to $2,125.
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The FAA has included all known costs in its cost estimate.
According to the manufacturer, however, some or all of the costs of
this proposed AD may be covered under warranty, thereby reducing the
cost impact on affected operators.
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.
[[Page 6084]]
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-2022-0085; Project Identifier MCAI-
2021-00498-T.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by March 21, 2022.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Bombardier, Inc., Model BD-700-1A10 and BD-
700-1A11 airplanes, certificated in any category, serial numbers
9002 through 9879 inclusive and 9998.
(d) Subject
Air Transport Association (ATA) of America Code 35, Oxygen.
(e) Unsafe Condition
This AD was prompted by reports of oxygen leaks caused by
cracked, brittle or broken oxygen hoses that were found during
scheduled maintenance tests of the airplane oxygen system. The FAA
is issuing this AD to address a leak in the oxygen line, which may
result in failure to provide oxygen to passengers and crew and
result in an oxygen enriched atmosphere creating a fire risk on the
airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Inspection and Replacement
Within 6 months after the effective date of this AD: Do an
inspection of the oxygen hose assembly to determine if any hose
having a part number (P/N) in the O2C20T1 series is installed, in
accordance with the Accomplishment Instructions of the applicable
service information specified in figure 1 to paragraph (g) of this
AD. If P/N O2C20T1 series is installed, or if any test fails as
specified in paragraph (h) of this AD: Before further flight,
replace all the oxygen hoses, in accordance with the Accomplishment
Instructions of the applicable service information specified in
figure 1 to paragraph (g) of this AD.
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[[Page 6085]]
[GRAPHIC] [TIFF OMITTED] TP03FE22.025
(h) Optional Interim Testing for Certain Airplanes
For airplanes identified in figure 2 of paragraph (h) of this
AD: The oxygen hose replacement, if required by paragraph (g) of
this AD, may be delayed if all conditions specified in paragraphs
(h)(1) through (3) of this AD are met.
(1) The oxygen system is tested at the applicable times
specified in paragraph (h)(1)(i) or (ii) of this AD, in accordance
with the Accomplishment Instructions of the applicable service
information specified in figure 2 to paragraph (h) of this AD.
(i) If the Aircraft Completion Center Supplemental Type
Certificate (STC) for the passenger cabin interior was issued within
5 years before the effective date of this AD: The oxygen system is
tested within 6 months after the effective date of this AD, and
thereafter at intervals not to exceed 30 months.
(ii) If the Aircraft Completion Center STC for the passenger
cabin interior was issued 5 years or more before the effective date
of this AD: The oxygen system is tested within 6 months after the
effective date of this AD, and thereafter at intervals not to exceed
15 months.
(2) All P/N O2C20T1 series hoses are replaced before further
flight as specified in paragraph (g) of this AD after any hose fails
any test.
[[Page 6086]]
(3) Except as specified by paragraph (h)(2) of this AD, all P/N
O2C20T1 series hoses are replaced within 10 years after issuance of
the Aircraft Completion Center STC for the passenger cabin interior
as specified in paragraph (g) of this AD provided that all P/N
O2C20T1 series hoses in the flight compartment and the third crew
(left-hand side enclosure) are replaced within 6 months after the
effective date of this AD.
[GRAPHIC] [TIFF OMITTED] TP03FE22.026
(i) Parts Installation Prohibition
As of the effective date of this AD, no person may install an
oxygen hose assembly having a P/N in the O2C20T1 series on any
airplane.
(j) Credit for Previous Actions
This paragraph provides credit for actions required by paragraph
(g) of this AD, if those actions were performed before the effective
date of this AD using the applicable service information specified
in paragraphs (j)(1) through (5) of this AD.
(1) Bombardier Service Bulletin 700-1A11-35-014, dated September
28, 2020.
(2) Bombardier Service Bulletin 700-35-015, dated September 28,
2020.
(3) Bombardier Service Bulletin 700-35-5005, dated September 28,
2020.
(4) Bombardier Service Bulletin 700-35-6005, dated September 28,
2020.
(5) Bombardier Service Bulletin 700-35-6501, dated September 28,
2020.
(k) 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.
(l) Related Information
(1) Refer to Mandatory Continuing Airworthiness Information
(MCAI) TCCA AD CF-2021-17, dated April 28, 2021, for related
information. This MCAI may be found in the AD docket on the internet
at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating Docket
No. FAA-2022-0085.
(2) For more information about this AD, contact Elizabeth
Dowling, Aerospace Engineer, Mechanical Systems and Administrative
Services Section, FAA, New York ACO Branch, 1600 Stewart Avenue,
Suite 410, Westbury, NY 11590; telephone 516-228-7300; fax 516-794-
5531; email <a href="/cdn-cgi/l/email-protection#fbc2d69a8d88d695829a9894d6989488bb9d9a9ad59c948d"><span class="__cf_email__" data-cfemail="073e2a6671742a697e6664682a6468744761666629606871">[email protected]</span></a>.
(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 <a href="/cdn-cgi/l/email-protection#29484a07505c4569484c5b46074b46444b485b4d404c5b074a4644"><span class="__cf_email__" data-cfemail="39585a17404c5579585c4b56175b56545b584b5d505c4b175a5654">[email protected]</span></a>; internet
<a href="https://www.bombardier.com">https://www.bombardier.com</a>. 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 January 28, 2022.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2022-02141 Filed 2-2-22; 8:45 am]
BILLING CODE 4910-13-C
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