[Federal Register Volume 90, Number 149 (Wednesday, August 6, 2025)]
[Rules and Regulations]
[Pages 37786-37787]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-14870]
[[Page 37786]]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2025-0756; Project Identifier MCAI-2024-00595-T;
Amendment 39-23091; AD 2025-15-04]
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: Final rule.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
Gulfstream Aerospace LP Model Gulfstream G150 airplanes. This AD was
prompted by a determination that a new airworthiness limitation is
necessary. This AD requires revising the existing maintenance or
inspection program, as applicable, to incorporate a new airworthiness
limitation. The FAA is issuing this AD to address the unsafe condition
on these products.
DATES: This AD is effective September 10, 2025.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of September
10, 2025.
ADDRESSES:
AD Docket: You may examine the AD docket at regulations.gov under
Docket No. FAA-2025-0756; 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 final rule, the mandatory continuing airworthiness
information (MCAI), any comments received, and other information. The
address for Docket Operations is U.S. Department of Transportation,
Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200
New Jersey Avenue SE, Washington, DC 20590.
Material Incorporated by Reference:
For Civil Aviation Authority of Israel (CAAI) material
identified in this AD, contact CAAI, P.O. Box 1101, Golan Street,
Airport City, 70100, Israel; telephone 972-3-9774665; email
[email protected]. You may find this material on the CAAI website at
www.gov.il/en/pages/israeli-airworthiness-directives.
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. It is also available at regulations.gov under
Docket No. FAA-2025-0756.
FOR FURTHER INFORMATION CONTACT: Fatin Saumik, Aviation Safety
Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone 516-228-7350; email [email protected].
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 by adding an AD that would apply to all Gulfstream
Aerospace LP Model Gulfstream G150 airplanes. The NPRM was published in
the Federal Register on May 14, 2025 (90 FR 20408). The NPRM was
prompted by AD ISR I-32-24-10-01R1, revised October 15, 2024 (CAAI AD
ISR I-32-24-10-01R1) (also referred to as the MCAI), issued by CAAI,
which is the aviation authority for Israel. The MCAI states that a new
airworthiness limitation has been developed.
In the NPRM, the FAA proposed to require revising the existing
maintenance or inspection program, as applicable, to incorporate a new
airworthiness limitation, as specified in CAAI AD ISR I-32-24-10-01R1.
The FAA is issuing this AD to prevent failure of the nose landing gear
(NLG) actuator-to-strut attachment pin. The unsafe condition, if not
addressed, could result in failure of the NLG to retract and lock after
takeoff or extend and lock before landing.
You may examine the MCAI in the AD docket at regulations.gov under
Docket No. FAA-2025-0756.
Discussion of Final Airworthiness Directive
Comments
The FAA received no comments on the NPRM or on the determination of
the cost to the public.
Conclusion
These products have been approved by the civil aviation authority
of another country and are approved for operation in the United States.
Pursuant to the FAA's bilateral agreement with this State of Design
Authority, that authority has notified the FAA of the unsafe condition
described in the MCAI referenced above. The FAA reviewed the relevant
data, considered any comments received, and determined that air safety
requires adopting this AD as proposed. Accordingly, the FAA is issuing
this AD to address the unsafe condition on these products. Except for
minor editorial changes, this AD is adopted as proposed in the NPRM.
None of the changes will increase the economic burden on any operator.
Material Incorporated by Reference Under 1 CFR Part 51
The FAA reviewed CAAI AD ISR I-32-24-10-01R1, which specifies a new
airworthiness limitation for the safe life limit of the NLG actuator-
to-strut attachment pin. 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.
Costs of Compliance
The FAA estimates that this AD affects 85 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
The FAA has determined that revising the existing maintenance or
inspection program takes an average of 90 work-hours per operator,
although the agency recognizes that this number may vary from operator
to operator. Since operators incorporate maintenance or inspection
program changes for their affected fleet(s), the FAA has determined
that a per-operator estimate is more accurate than a per-airplane
estimate. Therefore, the agency estimates the average total cost per
operator to be $7,650 (90 work-hours x $85 per work-hour).
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
This AD will not have federalism implications under Executive Order
13132. This AD will not have a substantial direct effect on the States,
on the relationship between the national government and the States, or
on the
[[Page 37787]]
distribution of power and responsibilities among the various levels of
government.
For the reasons discussed above, I certify that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Will not affect intrastate aviation in Alaska, and
(3) Will 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 Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 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:
2025-15-04 Gulfstream Aerospace LP (Type Certificate Previously Held
by Israel Aircraft Industries, Ltd.): Amendment 39-23091; Docket No.
FAA-2025-0756; Project Identifier MCAI-2024-00595-T.
(a) Effective Date
This airworthiness directive (AD) is effective September 10,
2025.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Gulfstream Aerospace LP (Type Certificate
previously held by Israel Aircraft Industries, Ltd.) Model
Gulfstream G150 airplanes, certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 05, Time Limits/
Maintenance Checks; 32, Landing Gear.
(e) Unsafe Condition
This AD was prompted by a determination that a new airworthiness
limitation is necessary. The FAA is issuing this AD to prevent
failure of the nose landing gear (NLG) actuator-to-strut attachment
pin. The unsafe condition, if not addressed, could result in failure
of the NLG to retract and lock after take-off or extend and lock
before landing.
(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, Civil Aviation Authority of Israel (CAAI) AD ISR I-
32-24-10-01R1, revised October 15, 2024 (CAAI AD ISR I-32-24-10-
01R1).
(h) Exceptions to CAAI AD ISR I-32-24-10-01R1
(1) Where CAAI AD ISR I-32-24-10-01R1 refers to its effective
date, this AD requires using the effective date of this AD.
(2) The initial compliance time for doing the task specified in
the Action paragraph of CAAI AD ISR I-32-24-10-01R1 is at the
applicable ``discard'' interval as specified in the material
referenced in the Action paragraph of CAAI AD ISR I-32-24-10-01R1,
or within 3 months after the effective date of this AD, whichever
occurs later.
(3) Where the Action paragraph of CAAI AD ISR I-32-24-10-01R1
specifies to ``incorporate AMM Revision 29'', this AD requires
replacing that text with ``revise the existing maintenance or
inspection program, as applicable, by incorporating the Nose Landing
Gear Actuator to Nose Landing Gear Strut Attachment Pin task
identified in AMM Revision 29''.
(i) Provisions for Alternative Actions and Intervals
After the existing maintenance or inspection program has been
revised as required by paragraph (g) of this AD, no alternative
actions (e.g., inspections) or intervals are allowed unless they are
approved as specified in the provisions of paragraph (j)(1) of this
AD.
(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 manager of the
International Validation Branch, send it to the attention of the
person identified in paragraph (k) of this AD and email to:
[email protected]. 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 Fatin Saumik,
Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516-228-7350; email
[email protected].
(l) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference of the material listed in this paragraph
under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this material 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-32-24-10-
01R1, revised October 15, 2024.
(ii) [Reserved]
(3) For CAAI material identified in this AD, contact CAAI, P.O.
Box 1101, Golan Street, Airport City, 70100, Israel; telephone 972-
3-9774665; fax 972-3-9774592; email [email protected]. You may find
this material on the CAAI website at www.gov.il/en/pages/israeli-
airworthiness-directives.
(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 at the National Archives and
Records Administration (NARA). For information on the availability
of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations or email [email protected].
Issued on August 1, 2025.
Christopher R. Parker,
Acting Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2025-14870 Filed 8-5-25; 8:45 am]
BILLING CODE 4910-13-P