Proposed Rule2022-12623
Airworthiness Directives; Bombardier, Inc., Airplanes
Primary source
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Published
June 13, 2022
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-700-2A12 airplanes. This proposed AD was prompted by the investigation of erroneous radio altimeter data that was displayed on an in-service airplane. It was revealed that certain radio altimeter coaxial cables used by the radio altimeter systems, in the aft fuselage equipment bay, were damaged. This proposed AD would require replacing affected radio altimeter coaxial cables. 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 113 (Monday, June 13, 2022)</title>
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[Federal Register Volume 87, Number 113 (Monday, June 13, 2022)]
[Proposed Rules]
[Pages 35686-35689]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-12623]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-0677; Project Identifier MCAI-2021-01378-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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[[Page 35687]]
SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for certain Bombardier, Inc., Model BD-700-2A12 airplanes. This
proposed AD was prompted by the investigation of erroneous radio
altimeter data that was displayed on an in-service airplane. It was
revealed that certain radio altimeter coaxial cables used by the radio
altimeter systems, in the aft fuselage equipment bay, were damaged.
This proposed AD would require replacing affected radio altimeter
coaxial cables. 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 July 28,
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 1-514-855-2999;
email <a href="/cdn-cgi/l/email-protection#aecfcd80d7dbc2eecfcbdcc180ccc1c3cccfdccac7cbdc80cdc1c3"><span class="__cf_email__" data-cfemail="2041430e59554c604145524f0e424f4d424152444945520e434f4d">[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-2022-0677; 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;
email <a href="/cdn-cgi/l/email-protection#6f56420e191c4201160e0c00420c001c2f090e0e41080019"><span class="__cf_email__" data-cfemail="ad9480ccdbde80c3d4cccec280cec2deedcbcccc83cac2db">[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-2022-0677; Project Identifier
MCAI-2021-01378-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
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; email <a href="/cdn-cgi/l/email-protection#0c35216d7a7f2162756d6f63216f637f4c6a6d6d226b637a"><span class="__cf_email__" data-cfemail="b0899dd1c6c39ddec9d1d3df9dd3dfc3f0d6d1d19ed7dfc6">[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 for Canada, has issued TCCA AD CF-2021-45, dated December 7,
2021 (TCCA AD CF-2021-45) (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-700-2A12
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-
0677.
This proposed AD was prompted by the investigation of erroneous
radio altimeter data that was displayed on an in-service airplane. It
was revealed that certain radio altimeter coaxial cables, from Radio
Altimeters A28 and A29 to antennas, have been reported damaged, due
their light weight construction, and their proximity to the access door
on the eBay. The FAA is proposing this AD to address the damage to or
kinks in the radio altimeter coaxial cables which could lead to signal
loss or degradation, and possibly un-annunciated loss of terrain
awareness warning system aural cues during approach. See the MCAI for
additional background information.
Related Service Information Under 1 CFR Part 51
Bombardier has issued Service Bulletin 700-91-7502, Revision 01,
dated August 31, 2020. This service information describes procedures
for replacing affected radio altimeter coaxial cables. The replacement
includes removing the existing radio altimeter coaxial cables,
replacing with new coaxial cables, installing new clamps to accommodate
the coaxial bend radius along the coaxial routing, and re-routing new
radio altimeter coaxial cables from the wing to fuselage fairing, in
the left and right aft fuselage, and in the aft fuselage belly fairing.
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.
[[Page 35688]]
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 27 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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Cost per Cost on U.S.
Labor cost Parts cost product operators
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70 work-hours x $85 per hour = $5,950........................ $13,808 $19,758 $533,466
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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.
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-2022-0677; Project Identifier MCAI-
2021-01378-T.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by July 28, 2022.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Bombardier, Inc., Model BD-700-2A12
airplanes, serial numbers 70006 through 70053 inclusive,
certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 34, Navigation.
(e) Unsafe Condition
This AD was prompted by the investigation of erroneous radio
altimeter data that was displayed on an in-service airplane. It was
revealed that certain radio altimeter coaxial cables in the aft
fuselage equipment bay were damaged. The FAA is issuing this AD to
address damage to or kinks in the radio altimeter coaxial cables,
which could lead to signal loss or degradation, and possibly un-
annunciated loss of terrain awareness warning system aural cues
during approach.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Replacement of Radio Altimeter Coaxial Cables
Within 12 months after the effective date of this AD, replace
affected radio altimeter coaxial cables, in accordance with the
Accomplishment Instructions of Bombardier Service Bulletin 700-91-
7502, Revision 01, dated August 31, 2020, except as specified in
paragraph (h) of this AD.
(h) No Reporting Requirement
Although Bombardier Service Bulletin 700-91-7502, Revision 01,
dated August 31, 2020, specifies to submit certain information to
the manufacturer, this AD does not include that requirement.
(i) 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 service information identified in
Bombardier Service Bulletin 700-91-7502, dated February 6, 2020.
(j) 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. 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
[[Page 35689]]
the DAO, the approval must include the DAO-authorized signature.
(k) Related Information
(1) Refer to Mandatory Continuing Airworthiness Information
(MCAI) TCCA AD CF-2021-45, dated December 7, 2021, for related
information 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-2022-0677.
(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; email <a href="/cdn-cgi/l/email-protection#5a63773b2c297734233b3935773935291a3c3b3b743d352c"><span class="__cf_email__" data-cfemail="d9e0f4b8afaaf4b7a0b8bab6f4bab6aa99bfb8b8f7beb6af">[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 1-514-855-2999; email <a href="/cdn-cgi/l/email-protection#d6b7b5f8afa3ba96b7b3a4b9f8b4b9bbb4b7a4b2bfb3a4f8b5b9bb"><span class="__cf_email__" data-cfemail="6100024f18140d210004130e4f030e0c030013050804134f020e0c">[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 June 6, 2022.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2022-12623 Filed 6-10-22; 8:45 am]
BILLING CODE 4910-13-P
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