preamble attached >>>
ADs updated daily at www.Tdata.com
PROPOSED AD GULFSTREAM AEROSPACE LP (TYPE CERTIFICATE PREVIOUSLY HELD BY ISRAEL AIRCRAFT INDUSTRIES, LTD.): Docket No. FAA-2022-0994; Project Identifier MCAI-2022-00052-T.
(a) COMMENTS DUE DATE

    The FAA must receive comments on this airworthiness directive (AD)  by
    January 27, 2023.

(b) AFFECTED ADS

    None.

(c) APPLICABILITY

    This AD applies to Gulfstream Aerospace LP Model Galaxy airplanes  and
    Model Gulfstream 200 airplanes,  certificated in any category,  serial
    numbers 004 through 250 inclusive.

(d) SUBJECT

    Air Transport Association (ATA) of America Code 57, Wings.

(e) UNSAFE CONDITION

    This AD was prompted by  reports that wing flap fairing  debonding and
    corrosion were discovered at  lower skin of rib  3 and rib 11  on both
    wings. The FAA  is issuing this  AD to address  flap fairing debonding
    and moisture intrusion  that might lead  to lower wing  skin corrosion
    and cracking on  both wings, and  reduced structural integrity  of the
    wings.

(f) COMPLIANCE

    Comply with this AD within the compliance times specified,  unless al-
    ready done.

(g) REQUIREMENTS

    Except as specified in paragraphs (h) and (i) of this AD: Comply  with
    all  required  actions  and  compliance  times  specified  in,  and in
    accordance with, Civil  Aviation Authority of  Israel (CAAI) AD  ISR I
    -57-2021-12-4, dated January 1, 2022 (CAAI AD ISR I-57-2021-12-4).

(h) EXCEPTIONS TO CAAI AD ISR I-57-2021-12-4

(1) Where CAAI AD ISR I-57-2021-12-4 refers to its effective date, this AD
    requires using the effective date of this AD.

(2) Where the Compliance  paragraph of CAAI AD ISR I-57-2021-12-4 requires
    compliance at a certain time,  replace the text "at the  next suitable
    planned  maintenance inspection  within the  next 24  months from  the
    effective date of this AD" with "within 24 months after the  effective
    date of this AD."

(3) Where the Action  paragraph  of  CAAI AD ISR I-57-2021-12-4  refers to
    certain  service  information, replace  the  text "Gulfstream  Service
    Bulletin No.  200-57-426,  dated  January 01, 2022,  or later approved
    revision," with "Gulfstream Service Bulletin No. 200-57-426,  Revision
    1, dated June 16, 2022, or later approved revision."

(4) Where the service information  specified in CAAI AD ISR I-57-2021-12-4
    specifies to report to Gulfstream if "cracks were discovered" and "for
    any fairing installation location with  one or more grid squares  with
    thickness reduction  of greater  than 10%,"  for this  AD, cracks  and
    fairing  installation locations  with one  or more  grid squares  with
    thickness  reduction  of  greater than  10%  must  be repaired  before
    further flight using a  method approved by the  Manager, International
    Validation Branch,  FAA; or  CAAI; or  CAAI's authorized  Designee. If
    approved by  the authorized  Designee, the  approval must  include the
    Designee's authorized signature.

(i) NO REPORTING REQUIREMENT

    Although the service information  referenced in CAAI AD ISR I-57-2021-
    12-4 specifies to submit certain information to the manufacturer, this
    AD does not include that requirement.

(j) ADDITIONAL AD PROVISIONS

    The following provisions also apply to this AD:

(1) Alternative Methods of Compliance (AMOCs):  The Manager, International
    Validation 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 International  Validation Branch,
    send it to the attention of the person identified in paragraph (k)  of
    this AD.  Information may  be emailed  to: 9-AVS-AIR-730-AMOC@faa.gov.
    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,  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) ADDITIONAL INFORMATION

    For more  information  about this AD,  contact  Dan Rodina,  Aerospace
    Engineer, Large Aircraft Section, FAA, International Validation Branch
    FAA, 2200 South 216th Street, Des Moines, WA 98198; telephone 206-231-
    3225; email dan.rodina@faa.gov.

(l) MATERIAL INCORPORATED BY REFERENCE

(1) The Director of the Federal Register  approved  the  incorporation  by
    reference of the service information  listed in this paragraph under 5
    U.S.C. 552(a) and 1 CFR part 51.

(2) You must use this service information as applicable  to do the actions
    required by this AD, unless this AD specifies otherwise.

(i) Civil Aviation Authority of Israel (CAAI) AD ISR I-57-2021-12-4, dated
    January 1, 2022.

(ii) [Reserved]

(3) For  CAAI AD ISR I-57-2021-12-4,  contact  Civil Aviation Authority of
    Israel (CAAI), PO Box 1101, Golan Street, Airport City, 70100, Israel;
    telephone 972-3-9774665;  fax 972-3-9774592; email aip@mot.gov.il. You
    may find this CAAI AD on the CAAI website at caa.gov.il.

(4) 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.

(5) You may view  this material  that is incorporated  by reference at the
    National Archives and Records Administration (NARA).  For  information
    on the availability of this material at NARA, email fr.inspection@nara
    .gov,  or go to:  www.archives.gov/federal-register/cfr/ibr-locations.
    html.

Issued on December 7, 2022.  Christina Underwood, Acting Director, Compli-
ance & Airworthiness Division, Aircraft Certification Service.

DATES: The FAA must receive comments on this SNPRM by January 27, 2023.
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2022-0994; Project Identifier MCAI-2022-00052-T]
RIN 2120-AA64

Airworthiness Directives; Gulfstream Aerospace LP (Type
Certificate Previously Held by Israel Aircraft Industries, Ltd.)
Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Supplemental notice of proposed rulemaking (SNPRM).

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

SUMMARY: The FAA is revising a notice of proposed rulemaking (NPRM)
that would have applied to certain Gulfstream Aerospace LP Model
Gulfstream 200 airplanes. This action revises the NPRM by adding Model
Galaxy airplanes to the applicability. The FAA is proposing this
airworthiness directive (AD) to address the unsafe condition on these
products. Since these actions would impose an additional burden over
those in the NPRM, the FAA is requesting comments on this SNPRM.

DATES: The FAA must receive comments on this SNPRM by January 27, 2023.

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 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.
AD Docket: You may examine the AD docket at regulations.gov under
Docket No. FAA-2022-0994; or in person at Docket Operations between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD
docket contains the NPRM, this SNPRM, the mandatory continuing
airworthiness information (MCAI), any comments received, and other
information. The street address for Docket Operations is listed above.
Material Incorporated by Reference:
For material that is proposed for incorporation by
reference in this SNPRM, contact 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 aip@mot.gov.il. You
may find this material on the CAAI website at caa.gov.il. It is also
available at regulations.gov under Docket No. FAA-2022-0994.
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.

FOR FURTHER INFORMATION CONTACT: Dan Rodina, Aerospace Engineer, Large
Aircraft Section, FAA, International Validation Branch, FAA, 2200 South
216th Street, Des Moines, WA 98198; telephone 206-231-3225; email
dan.rodina@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. FAA-2022-0994; Project Identifier
MCAI-2022-00052-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
this 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
regulations.gov, including any personal information you provide. The
agency will also post a report summarizing each substantive verbal
contact received about this SNPRM.

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 SNPRM 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 SNPRM, 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 SNPRM. Submissions containing CBI should
be sent to Dan Rodina, Aerospace Engineer, Large Aircraft Section, FAA,
International Validation Branch, FAA, 2200 South 216th Street, Des
Moines, WA 98198; telephone 206-231-3225; email dan.rodina@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

The FAA issued an NPRM to amend 14 CFR part 39 by adding an AD that
would apply to certain Gulfstream Aerospace LP Model Gulfstream 200
airplanes. The NPRM published in the Federal Register on August 17,
2022 (87 FR 50588). The NPRM was prompted by AD ISR I-57-2021-12-4,
dated January 1, 2022, issued by CAAI, which is the aviation authority
for Israel (referred to after this as the MCAI). There were reports
that wing flap fairing debonding and corrosion were discovered at the
lower skin of rib 3 and rib 11 on both wings. The MCAI states that the
reason for the AD is to prevent the possibility of flap fairing
debonding, moisture intrusion and wing lower skin corrosion at rib 3
and rib 11.
In the NPRM, the FAA proposed to require an inspection for
corrosion in certain areas of the wing skin fairings, additional
inspections if necessary, resealing the fairings with new fillet seal,
and applicable corrective actions.
You may examine the MCAI in the AD docket at regulations.gov under
Docket No. FAA-2022-0994.

Actions Since the NPRM Was Issued

Since the FAA issued the NPRM, the FAA determined that Model Galaxy
airplanes must be added to the applicability. The FAA is proposing this
AD to address flap fairing debonding and moisture intrusion that might
lead to lower wing skin corrosion and cracking on both wings, and
reduced structural integrity of the wings.

Comments

The FAA received comments from an anonymous commenter. The
following presents the comments received on the NPRM and the FAA's
response to each comment.

Request To Add Model Galaxy Airplanes to the Applicability

The commenter requested that the FAA add Model Galaxy airplanes to
the applicability. The commenter stated that Model Galaxy airplane
serial numbers are included in the applicability of the NPRM, but the
model designation (Galaxy) is not mentioned. The commenter concluded
that owners/operators for Model Galaxy airplanes might not be aware of
the proposed AD and might not address the unsafe condition.
The FAA agrees with the request. The FAA has revised this AD to add
Model Galaxy airplanes to the applicability.

Request To Change the Model Designation From Gulfstream G200 to
Gulfstream 200


The commenter requested that the FAA change Model Gulfstream G200
airplanes to Model Gulfstream 200 airplanes in the applicability. The
commenter noted that in the FAA type certificate data sheet (TCDS)
A53NM, the model designation is Gulfstream 200. The commented stated
that the correction brings the intended model designation in line with
the FAA TCDS.
The FAA agrees with the request. The FAA has revised this AD to
change the model designation from Gulfstream G200 to Gulfstream 200.

Related Service Information Under 1 CFR Part 51

CAAI AD ISR I-57-2021-12-4, dated January 1, 2022, describes
procedures for an inspection for corrosion in the area of the wing skin
(or doubler if installed) under the rib 3 and rib 11 fairings, a
penetration or eddy current inspection for cracks if corrosion was
found, a measurement of the thickness of remaining wing skin (or
doubler) if no cracks were found, resealing of rib 3 and rib 11
fairings with new fillet seal, and applicable corrective actions.
Corrective actions include cleaning and removing corrosion, crack
repair, and repair of fairing installation locations with a certain
thickness reduction.
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 ADDRESSES.

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, it
has notified the FAA of the unsafe condition described in the MCAI
described above. The FAA is issuing this SNPRM after determining that
the unsafe condition described previously is likely to exist or develop
in other products of the same type design.
Certain changes described above expand the scope of the NPRM. As a
result, it is necessary to reopen the comment period to provide
additional opportunity for the public to comment on this SNPRM.

Proposed AD Requirements in This SNPRM

This proposed AD would require accomplishing the actions specified
in CAAI AD ISR I-57-2021-12-4, dated January 1, 2022, described
previously, except for any differences identified as exceptions in the
regulatory text of this proposed AD.

Explanation of Required Compliance Information

In the FAA's ongoing efforts to improve the efficiency of the AD
process, the FAA developed a process to use some civil aviation
authority (CAA) ADs as the primary source of information for compliance
with requirements for corresponding FAA ADs. The FAA has been
coordinating this process with manufacturers and CAAs. As a result, the
FAA proposes to incorporate CAAI AD ISR I-57-2021-12-4, dated January
1, 2022, by reference in the FAA final rule. This AD would, therefore,
require compliance with CAAI AD ISR I-57-2021-12-4, dated January 1,
2022, in its entirety through that incorporation, except for any
differences identified as exceptions in the regulatory text of this AD.
Service information required by CAAI AD ISR I-57-2021-12-4, dated
January 1, 2022, for compliance will be available at regulations.gov
under Docket No. FAA-2022-0994 after the FAA final rule is published.

Costs of Compliance

The FAA estimates that this AD, if adopted as proposed, would
affect 168 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
29 work-hours x $85 per hour = $2,465
Minimal
$2,465
$414,120

The FAA estimates the following costs to do any necessary on-
condition action that would be required based on the results of any
required actions. The FAA has no way of determining the number of
aircraft that might need these on-condition actions:

Estimated Costs of On-Condition Actions *

Labor cost
Parts cost
Cost per product
Up to 10 work-hours x $85 per hour = $850
$0
Up to $850

* The FAA has received no definitive data on which to base the cost
estimates for the on-condition repairs specified in this proposed AD.

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

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]

2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive: