Proposed Rule2021-12170
Airworthiness Directives; Gulfstream Aerospace LP 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
June 10, 2021
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA proposes to adopt a new airworthiness directive (AD) for certain Gulfstream Aerospace LP Model Gulfstream G280 airplanes. This proposed AD was prompted by a report that during full-scale fatigue testing, a crack was found in the area of the attachment of the wing rib 0 to the front spar. This proposed AD would require non-destructive testing on the forward (front) spar vertical stiffener and rib 0 for any cracking, installation of a doubler to the forward (front) spar and rib 0 attachment, and repair if necessary, as specified in a Civil Aviation Authority of Israel (CAAI) AD, which is proposed for incorporation by reference. The FAA is proposing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 86 Issue 110 (Thursday, June 10, 2021)</title>
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[Federal Register Volume 86, Number 110 (Thursday, June 10, 2021)]
[Proposed Rules]
[Pages 30819-30822]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2021-12170]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2021-0459; Project Identifier MCAI-2021-00129-T]
RIN 2120-AA64
Airworthiness Directives; Gulfstream Aerospace LP 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
[[Page 30820]]
certain Gulfstream Aerospace LP Model Gulfstream G280 airplanes. This
proposed AD was prompted by a report that during full-scale fatigue
testing, a crack was found in the area of the attachment of the wing
rib 0 to the front spar. This proposed AD would require non-destructive
testing on the forward (front) spar vertical stiffener and rib 0 for
any cracking, installation of a doubler to the forward (front) spar and
rib 0 attachment, and repair if necessary, as specified in a Civil
Aviation Authority of Israel (CAAI) AD, which is proposed for
incorporation by reference. 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 26,
2021.
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 material that will be incorporated by reference (IBR) in this
AD, contact The Civil Aviation Authority of Israel (CAAI), P.O. Box
1101, Golan Street, Airport City, 70100, Israel; telephone 972-3-
9774665; fax 972-3-9774592; email <a href="/cdn-cgi/l/email-protection#e8898198a885879cc68f879ec68184"><span class="__cf_email__" data-cfemail="bedfd7cefed3d1ca90d9d1c890d7d2">[email protected]</span></a>. You may find this IBR
material on the CAAI website at <a href="https://www.caa.gov.il">https://www.caa.gov.il</a>. You may view
this IBR material 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. It is also available in the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating Docket No. FAA-2021-
0459.
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-2021-0459; 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: Tom Rodriguez, Aerospace Engineer,
Large Aircraft Section, International Validation Branch, FAA, 2200
South 216th St., Des Moines, WA 98198; telephone and fax 206-231-3226;
email <a href="/cdn-cgi/l/email-protection#f8ac9795d6aa979c8a919f8d9d82b89e9999d69f978e"><span class="__cf_email__" data-cfemail="6733080a49350803150e0012021d2701060649000811">[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-2021-0459; Project Identifier
MCAI-2021-00129-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 proposed AD.
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 Tom
Rodriguez, Aerospace Engineer, Large Aircraft Section, International
Validation Branch, FAA, 2200 South 216th St., Des Moines, WA 98198;
telephone and fax 206-231-3226; email <a href="/cdn-cgi/l/email-protection#db8fb4b6f589b4bfa9b2bcaebea19bbdbabaf5bcb4ad"><span class="__cf_email__" data-cfemail="c490aba9ea96aba0b6ada3b1a1be84a2a5a5eaa3abb2">[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
The CAAI, which is the aviation authority for Israel, has issued
CAAI AD I-57-2020-06-01, dated January 27, 2021 (CAAI AD I-57-2020-06-
01) (also referred to as the Mandatory Continuing Airworthiness
Information, or the MCAI), to correct an unsafe condition for certain
Gulfstream Aerospace LP Model Gulfstream G280 airplanes.
This proposed AD was prompted by a report that during full-scale
fatigue testing, a crack was found in the area of the attachment of the
wing rib 0 to the front spar. The FAA is proposing this AD to address
any cracking at the area of the wing rib 0 to the front spar, which
could affect the structural integrity of the wing. See the MCAI for
additional background information.
Related Service Information Under 1 CFR Part 51
CAAI AD I-57-2020-06-01 specifies procedures for non-destructive
testing (high frequency, mid frequency, bolt hole eddy current
inspections, and a liquid (dye) penetrant inspection) for cracking on
the forward (front) spar vertical stiffener and rib 0, installation of
a doubler to the forward (front) spar and rib 0 attachment, and repair
if necessary. This material 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 and Requirements of This Proposed AD
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
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 in other
products of the same type design.
Proposed AD Requirements
This proposed AD would require accomplishing the actions specified
in CAAI AD I-57-2020-06-01 described previously, as incorporated by
reference, except for any differences identified as exceptions in the
regulatory text of this AD.
Explanation of Required Compliance Information
In the FAA's ongoing efforts to improve the efficiency of the AD
[[Page 30821]]
process, the FAA initially worked with Airbus and EASA to develop a
process to use certain EASA ADs as the primary source of information
for compliance with requirements for corresponding FAA ADs. The FAA has
since coordinated with other manufacturers and civil aviation
authorities (CAAs) to use this process. As a result, CAAI AD I-57-2020-
06-01 will be incorporated by reference in the FAA final rule. This
proposed AD would, therefore, require compliance with CAAI AD I-57-
2020-06-01 in its entirety, through that incorporation, except for any
differences identified as exceptions in the regulatory text of this
proposed AD. Service information specified in CAAI AD I-57-2020-06-01
that is required for compliance with CAAI AD I-57-2020-06-01 will be
available on the internet at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching
for and locating Docket No. FAA-2021-0459 after the FAA final rule is
published.
Costs of Compliance
The FAA estimates that this proposed AD affects 23 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
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80 work-hours x $85 per hour = $6,800 *...................... $400 * $7,200 * $165,600
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* If the actions are accomplished during 4C Check.
The FAA has received no definitive data on which to base the cost
estimates for the repair specified in this proposed AD.
According to the manufacturer, some or all of the costs of this
proposed AD may be covered under warranty, thereby reducing the cost
impact on affected oeprators. The FAA does not control warranty
coverage for affected operators. As a result, the FAA has included all
known costs in the cost estimate.
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:
Gulfstream Aerospace LP: Docket No. FAA-2021-0459; Project
Identifier MCAI-2021-00129-T.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by July 26, 2021.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Gulfstream Aerospace LP Model Gulfstream G280
airplanes, certificated in any category, as identified in The Civil
Aviation Authority of Israel (CAAI) AD I-57-2020-06-01, dated
January 27, 2021 (CAAI AD I-57-2020-06-01).
(d) Subject
Air Transport Association (ATA) of America Code 57, Wings.
(e) Reason
This AD was prompted by a report that during full-scale fatigue
testing, a crack was found in the area of the attachment of the wing
rib 0 to the front spar. The FAA is issuing this AD to address any
cracking at the area of the wing rib 0 to the front spar, which
could affect the structural integrity of the wing.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Requirements
Except as specified in paragraph (h) of this AD: Comply with all
required actions and compliance times specified in, and in
accordance with, CAAI AD I-57-2020-06-01.
(h) Exceptions to CAAI AD I-57-2020-06-01
Where CAAI AD I-57-2020-06-01 requires compliance ``not later
than 5,000 flight cycles,'' this AD requires compliance before the
accumulation of 5,000 total flight cycles since the date of issuance
of the original Israeli airworthiness certificate or the date of
issuance of the original Israeli export certificate of
airworthiness.
(i) No Reporting Requirement
Although the service information referenced in CAAI AD I-57-
2020-06-01 specifies to submit certain information to the
manufacturer, this AD does not include that requirement.
(j) Other FAA AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
Large Aircraft Section, International Validation Branch,
[[Page 30822]]
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 Large Aircraft Section, International
Validation Branch, send it to the attention of the person identified
in paragraph (k)(2) of this AD. Information may be emailed to: <a href="/cdn-cgi/l/email-protection#1e27335f484d335f574c33292d2e335f53515d5e787f7f30797168"><span class="__cf_email__" data-cfemail="e7decaa6b1b4caa6aeb5cad0d4d7caa6aaa8a4a7818686c9808891">[email protected]</span></a>. 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, Large Aircraft
Section, International Validation Branch, FAA; or CAAI; or CAAI's
authorized Designee. If approved by the CAAI Designee, the approval
must include the Designee's authorized signature.
(k) Related Information
(1) For CAAI AD I-57-2020-06-01, contact The Civil Aviation
Authority of Israel (CAAI), P.O. Box 1101, Golan Street, Airport
City, 70100, Israel; telephone 972-3-9774665; fax 972-3-9774592;
email <a href="/cdn-cgi/l/email-protection#b0d1d9c0f0dddfc49ed7dfc69ed9dc"><span class="__cf_email__" data-cfemail="7c1d150c3c111308521b130a521510">[email protected]</span></a>. You may find this CAAI AD on the CAAI website
at <a href="https://www.caa.gov.il">https://www.caa.gov.il</a>. You may view this material 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. This material 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-
2021-0459.
(2) For more information about this AD, contact Tom Rodriguez,
Aerospace Engineer, Large Aircraft Section, International Validation
Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone
and fax 206-231-3226; email <a href="/cdn-cgi/l/email-protection#53073c3e7d013c37213a34263629133532327d343c25"><span class="__cf_email__" data-cfemail="d783b8baf985b8b3a5beb0a2b2ad97b1b6b6f9b0b8a1">[email protected]</span></a>.
Issued on June 6, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2021-12170 Filed 6-9-21; 8:45 am]
BILLING CODE 4910-13-P
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