DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2022-1253; Project Identifier MCAI-2022-00698-T;
Amendment 39-22349; AD 2023-04-02]
RIN 2120-AA64

Airworthiness Directives; Gulfstream Aerospace LP 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 G280 airplanes. This AD was
prompted by a determination that the existing wet runway performance
tables in the airplane flight manual (AFM) may not provide an
acceptable level of safety. This AD requires revising the existing AFM
to incorporate new wet runway performance tables, as specified in a
Civil Aviation Authority of Israel (CAAI) AD, which is incorporated by
reference. The FAA is issuing this AD to address the unsafe condition
on these products.

DATES: This AD is effective April 7, 2023.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of April 7,
2023.

ADDRESSES:
AD Docket: You may examine the AD docket at regulations.gov under
Docket No. FAA-2022-1253; 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 material incorporated by reference in this AD, contact
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.
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 in the AD docket at
regulations.gov under Docket No. FAA-2022-1253.

FOR FURTHER INFORMATION CONTACT: Dan Rodina, Aerospace Engineer, Large
Aircraft Section, FAA, International Validation Branch, 2200 South
216th St., Des Moines, WA 98198; telephone 206-231-3225; email
dan.rodina@faa.gov.

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 G280 airplanes. The NPRM published in the
Federal Register on October 5, 2022 (87 FR 60344). The NPRM was
prompted by AD ISR-I-97-2022-04-9, dated May 1, 2022, issued by the
Civil Aviation Authority of Israel (CAAI), which is the aviation
authority for Israel (CAAI AD ISR-I-97-2022-04-9) (also referred to as
the MCAI). The MCAI states that the existing wet runway performance
tables in the AFM may not provide an acceptable level of safety, and
that the wet runway performance tables have been updated in the
Performance section of the G280 AFM, Revision 10.
In the NPRM, the FAA proposed to require revising the existing AFM
to incorporate new wet runway performance tables, as specified in CAAI
AD ISR-I-97-2022-04-9. The FAA is issuing this AD to address the
existing AFM wet runway performance tables that could allow the
airplane to experience runway excursions or overruns during takeoff.
You may examine the MCAI in the AD docket at regulations.gov under
Docket No. FAA-2022-1253.

Discussion of Final Airworthiness Directive

Comments

The FAA received comments from one individual. The following
presents the comments received on the NPRM and the FAA's response to
each comment.

Request To Produce Digital Version of AFM

The commenter noted that the FAA should change AFMs to a digital
format so they can be updated as new ADs are created.
The FAA issues ADs to address unsafe conditions, including those
involving the AFM. The question of whether AFMs should be produced in
another format is beyond the scope of this AD.

Request for Clarification on Adequacy of Performance Tables

The commenter also remarked that an effort should be made to
understand why wet runway performance tables do not have an acceptable
level of safety. The commenter argued that a deficiency such as this
should have been caught during the aircraft certification process.
Airplane certification and validation activities provide a baseline
for safety. However, it is not possible to anticipate all potential
unsafe conditions on an airplane during the certification process. Once
the airplane is in service, the FAA issues ADs in accordance with 14
CFR 39.5 when the agency subsequently finds that an unsafe condition
exists in the airplane and the condition is likely to exist or develop
in other airplanes of the same type design. The FAA has not changed
this AD as a result of this comment.

Conclusion

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 this State of Design Authority, it
has notified the FAA of the unsafe condition described in the MCAI
referenced above. The FAA reviewed the relevant data, considered the
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 this product. 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.

Related Service Information Under 1 CFR Part 51

CAAI AD ISR-I-97-2022-04-9 specifies procedures for updating the
Performance section of the G280 AFM to incorporate new wet runway
tables. 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 would affect 195 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:

Estimated Costs for Required Actions

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 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

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: