[Federal Register Volume 89, Number 61 (Thursday, March 28, 2024)]
[Rules and Regulations]
[Pages 21432-21436]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2024-06478]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2023-1805; Project Identifier AD-2023-00019-T; 
Amendment 39-22695; AD 2024-05-04]
RIN 2120-AA64


Airworthiness Directives; Gulfstream Aerospace Corporation 
Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2020-23-
04, which applied to certain Gulfstream Aerospace Corporation Model 
GVII-G500 and GVII-G600 airplanes. AD 2020-23-04 required revising the 
existing airplane flight manual (AFM) and airplane maintenance manual 
(AMM) to include information pertaining to the fuel boost pump. This AD 
was prompted by a report of misassembled impellers on the shaft of the 
fuel boost pump during production. This AD retains the requirements of 
AD 2020-23-04 and requires inspecting affected fuel boost pumps for 
proper installation of the impeller shaft key, marking affected fuel 
boost pumps that pass that inspection, and replacing fuel boost pumps 
that fail. This AD also limits the installation of affected fuel boost 
pumps. The FAA is issuing this AD to address the unsafe condition on 
these products.

DATES: This AD is effective May 2, 2024.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of May 2, 2024.
    The Director of the Federal Register approved the incorporation by 
reference of certain other publications listed in this AD as of 
November 24, 2020 (85 FR 71232, November 9, 2020).

ADDRESSES: 
    AD Docket: You may examine the AD docket at regulations.gov under 
Docket No. FAA-2023-1805; 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, 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 service information identified in this final rule, 
contact Gulfstream Aerospace Corporation, Technical Publications Dept., 
P.O. Box 2206, Savannah, GA 31402-2206; telephone 800-810-4853; email 
[email protected]; website gulfstream.com/en/customer-support.
     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. It is also available at 
regulations.gov under Docket No. FAA-2023-1805.

FOR FURTHER INFORMATION CONTACT: Jared Meyer, Aviation Safety Engineer, 
FAA, 1701 Columbia Avenue, College Park, GA 30337; phone: 404-474-5534; 
email: [email protected].

SUPPLEMENTARY INFORMATION:

Background

    The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 
CFR part 39 to supersede AD 2020-23-04, Amendment 39-21320 (85 FR 
71232, November 9, 2020) (AD 2020-23-04). AD 2020-23-04 applied to 
certain Gulfstream Aerospace Corporation Model GVII-G500 and GVII-G600 
airplanes. The NPRM published in the Federal Register on September 5, 
2023 (88 FR 60606). The NPRM was prompted by a report of misassembled 
impellers on the shaft of the fuel boost pump during production. In the 
NPRM, the FAA proposed to continue to require revising the existing AFM 
and AMM to include information pertaining to the fuel boost pump. The 
NPRM also proposed to require inspecting affected fuel boost pumps for 
proper installation of the impeller shaft key, marking affected fuel 
boost pumps that pass that inspection, and replacing fuel boost pumps 
that fail. The NPRM also proposed to limit installation of affected 
fuel boost pumps. The FAA is issuing this AD to prevent the ignition of 
flammable vapors in the fuel tank as a result of frictional heating or 
sparks caused by a missing, misplaced, or dislodged impeller shaft key 
inside the fuel boost pump. The unsafe condition, if not addressed, 
could result in a potential source of ignition in the fuel tank and 
consequent fire or explosion.

Discussion of Final Airworthiness Directive

Comments

    The FAA received a comment from an anonymous commenter who 
supported the NPRM without change.
    The FAA received additional comments from Gulfstream Aerospace 
Corporation (Gulfstream). The following

[[Page 21433]]

presents the comments received on the NPRM and the FAA's response to 
each comment.

Request To Change the Maintenance Manual Version

    Gulfstream requested that the FAA change the maintenance manual 
revision dates specified in paragraph (g) of the proposed AD to refer 
to subsequent dates. Gulfstream stated that GVII-G600 Maintenance 
Manual 28-26-04 Fuel Boost Pump-Removal/Installation Procedure, dated 
August 31, 2020, was revised March 31, 2023, to include non-technical 
changes (including the use of puller tool to reduce risk of damage to 
Fuel Boost Pump (FBP) during removal with a caution note to avoid 
excess force when removing FBP and a step to record FBP serial number 
to determine serviceability). Gulfstream also stated that GVII-G500 
Maintenance Manual 12-13-01 Defueling Procedure-Defuel, dated August 
31, 2020, and GVII-G600 Maintenance Manual 12-13-01 Defueling 
Procedure-Defuel, dated August 31, 2020, were revised on September 30, 
2023, due to an administrative error.
    The FAA agrees with the request. The revised defueling procedure 
requested by Gulfstream is acceptable because it instructs fuel boost 
pump maintenance to be performed in a way that addresses the unsafe 
condition and it prevents damage to the parts being removed/installed. 
The FAA has revised paragraphs (g)(1)(i), (ii), (iii), and (v) of this 
AD accordingly.

Request To Change Paragraph (i) of the Proposed AD

    Gulfstream requested that the compliance time in paragraph (i) of 
the proposed AD be revised from ``replacing the pump before further 
flight'' to ``replacing the pump following the completion of the CB 
[customer bulletin] before further flight.'' Gulfstream reported the 
statement ``this AD requires replacing the pump before further flight 
in accordance with the requirements of paragraph (h) of this AD'' in 
paragraph (i) of the proposed AD could be misleading. Gulfstream stated 
it believes this statement could be misunderstood by operators to mean 
that the AD immediately grounds their aircraft.
    The FAA agrees with the commenter that paragraph (i) of this AD 
should be revised to clarify the intent of this AD. Operators have 24 
months to comply with all applicable actions required by paragraph (h) 
of this AD. The FAA has revised paragraph (i) of this AD by removing 
the reference to ``before further flight'' and specifying that where 
the service information says to return a pump, this AD requires that 
the pump must be replaced.

Request for Removing GVII-G500 AFM

    Gulfstream requested removing reference to ``Gulfstream Aerospace 
GVII-G500 Airplane Flight Manual Supplement No. GVII-G500-2020-06, 
dated September 8, 2020,'' from paragraph (g)(2)(ii) of the proposed 
AD; Gulfstream stated there are no GVII-G500 airplanes in this 
configuration, all aircraft have been updated to GVII Block 1 software 
configuration, therefore this reference to the airplane flight manual 
supplement is not applicable.
    The FAA has confirmed with Gulfstream that Gulfstream Aerospace 
GVII-G500 Airplane Flight Manual Supplement No. GVII-G500-2020-06, 
dated September 8, 2020, is no longer applicable to the existing fleet. 
However, Gulfstream Aerospace GVII-G500 Airplane Flight Manual 
Supplement No. GVII-G500-2020-06, dated September 8, 2020, is retained 
in this AD. Operators may have previously complied with paragraph 
(g)(2)(ii) of AD 2020-23-04 using GVII-G500 Airplane Flight Manual 
Supplement No. GVII-G500-2020-06, dated September 8, 2020. Therefore, 
to provide credit to operators who have already complied with the 
service information and reduce the need for alternative method of 
compliance (AMOC) requests, the FAA has determined that this AD should 
include reference to GVII-G500 Airplane Flight Manual Supplement No. 
GVII-G500-2020-06, dated September 8, 2020. No changes have been made 
to this AD in this regard.

Conclusion

    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, and 
any other changes described previously, 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

    The FAA reviewed Gulfstream GVII-G500 Customer Bulletin No. 069 and 
Gulfstream GVII-G600 Customer Bulletin No. 037, both Revision A, both 
dated February 2, 2023. This service information specifies procedures 
for inspecting affected fuel boost pumps for proper installation of the 
impeller shaft key, marking affected fuel boost pumps that pass that 
inspection, and replacing fuel boost pumps that fail. These documents 
are distinct since they apply to different airplane models.
    The FAA also reviewed the following AMM documents, which contain 
revised maintenance procedures pertaining to the fuel boost pump. These 
documents are distinct since they apply to different airplane models.
     12-13-01 Defueling Procedure-Defuel, 12-13 Fueling and 
Defueling Operations Replenishing, Chapter 12--Servicing, Gulfstream 
Aerospace GVII-G500 Aircraft Maintenance Manual, Document Number GAC-
AC-GVII-G500-AMM-0001, Revision 16, dated November 30, 2023.
     12-13-01 Defueling Procedure-Defuel, 12-13 Fueling and 
Defueling Operations Replenishing, Chapter 12--Servicing, Gulfstream 
Aerospace GVII-G600 Aircraft Maintenance Manual, Document Number GAC-
AC-GVII-G600-AMM-0001, Revision 12, dated November 30, 2023.
     28-26-04 Fuel Boost Pump-Prime, 28-26 Engine and APU Fuel 
Delivery, Chapter 28--Fuel, Gulfstream Aerospace GVII-G500 Aircraft 
Maintenance Manual, Document Number GAC-AC-GVII-G500-AMM-0001, Revision 
16, dated November 30, 2023.
     28-26-04 Fuel Boost Pump-Removal/Installation, 28-26 
Engine and APU Fuel Delivery, Chapter 28--Fuel, Gulfstream Aerospace 
GVII-G600 Aircraft Maintenance Manual, Document Number GAC-AC-GVII-
G600-AMM-0001, Revision 12, dated November 30, 2023.
    This AD also requires the following Gulfstream service information, 
which the Director of the Federal Register approved for incorporation 
by reference as of November 24, 2020 (85 FR 71232, November 8, 2020). 
(Although the maintenance manual documents have the watermarked words 
``advance copy'' on each page of the document, these are not advance 
draft copies but final versions of temporary revisions to the AMM, 
pending incorporation into the AMM at the next revision.)
     Gulfstream Aerospace GVII-G500 Airplane Flight Manual 
Supplement No. GVII-G500 (Issue 1)--2020-05, dated September 8, 2020.
     Gulfstream Aerospace GVII-G500 Airplane Flight Manual 
Supplement No. GVII-G500-2020-06, dated September 8, 2020.
     Gulfstream Aerospace GVII-G600 Airplane Flight Manual 
Supplement No. GVII-G600-2020-06 dated September 8, 2020.

[[Page 21434]]

     GVII-G500 Maintenance Manual 12-13-01 Defueling Procedure-
Defuel, dated August 31, 2020.
     GVII-G500 Maintenance Manual 28-26-04 Fuel Boost Pump-
Prime, dated August 31, 2020.
     GVII-G600 Maintenance Manual 12-13-01 Defueling Procedure-
Defuel, dated August 31, 2020.
     GVII-G600 Maintenance Manual 28-26-04 Fuel Boost Pump-
Prime, dated August 31, 2020.
     GVII-G600 Maintenance Manual 28-26-04 Fuel Boost Pump-
Removal/Installation, dated August 31, 2020.
     GVII-G600 Maintenance Manual 28-26-05 Fuel Boost Pump 
Canister-Removal/Installation, dated August 31, 2020.
    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 ADDRESSES.

Costs of Compliance

    The FAA estimates that this AD affects 89 airplanes of U.S. 
registry. The FAA estimates the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                       Cost per    Cost on U.S.
                  Action                            Labor cost           Parts cost    product       operators
----------------------------------------------------------------------------------------------------------------
Incorporate information into AMM and AFM   2 work-hours x $85 per hour           $0         $170         $15,130
 (retained actions from AD 2020-23-04).     = $170.
Impeller shaft key inspection (new         36 work-hours x $85 per                0        3,060         272,340
 action).                                   hour = $3,060.
----------------------------------------------------------------------------------------------------------------

    The FAA estimates the following costs to do any necessary part 
marking and fuel boost pump replacements that would be required based 
on the results of the inspection for proper installation. The FAA has 
no way of determining the number of aircraft that might need these 
actions:

                           On-Condition Costs
------------------------------------------------------------------------
                                                               Cost per
            Action                Labor cost     Parts cost    product
------------------------------------------------------------------------
Part marking.................  0.5 work-hour x          $10       $52.50
                                $85 per hour =
                                $42.50.
Fuel pump replacement (per     10 work-hours x      106,706      107,556
 fuel boost pump).              $85 per hour =
                                $850.
------------------------------------------------------------------------

    The FAA has included all known costs in its cost estimate. 
According to the manufacturer, however, some or all of the costs of 
this 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

    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

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:
0
a. Removing Airworthiness Directive (AD) 2020-23-04, Amendment 39-21320 
(85 FR 71232, November 9, 2020); and
0
b. Adding the following new AD:

2024-05-04 Gulfstream Aerospace Corporation: Amendment 39-22695; 
Docket No. FAA-2023-1805; Project Identifier AD-2023-00019-T.

(a) Effective Date

    This airworthiness directive (AD) is effective May 2, 2024.

(b) Affected ADs

    This AD replaces AD 2020-23-04, Amendment 39-21320 (85 FR 71232, 
November 9, 2020) (AD 2020-23-04).

(c) Applicability

    This AD applies to the Gulfstream Aerospace Corporation 
airplanes, certificated in any category, identified in paragraphs 
(c)(1) and (2) of this AD.
    (1) Model GVII-G500 airplanes, serial numbers (S/Ns) 72001 and 
subsequent.

[[Page 21435]]

    (2) Model GVII-G600 airplanes, S/Ns 73001 and subsequent.

(d) Subject

    Air Transport Association (ATA) of America Code 2822, Fuel Boost 
Pump.

(e) Unsafe Condition

    This AD was prompted by a report of misassembled impellers onto 
the shaft of the fuel boost pump during production. The FAA is 
issuing this AD to prevent the ignition of flammable vapors in the 
fuel tank as a result of frictional heating or sparks caused by a 
missing, misplaced, or dislodged impeller shaft key inside the fuel 
boost pump. The unsafe condition, if not addressed, could result in 
a potential source of ignition in the fuel tank and consequent fire 
or explosion.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Retained Manual Updates, With Updated Service Information

    This paragraph restates the requirements of paragraph (g) of AD 
2020-23-04, with updated service information. For Model GVII-G500 
airplane S/Ns 72001 and 72007 through 72062 inclusive; and Model 
GVII-G600 airplane S/Ns 73002, 73004, 73006 through 73040 inclusive, 
73042, and 73043: Within 14 days after November 24, 2020 (the 
effective date of AD 2020-23-04), do the actions in paragraphs 
(g)(1) through (3) of this AD, as applicable.
    (1) Revise your existing airplane maintenance manual (AMM) by 
replacing the procedures listed in paragraphs (g)(1)(i) through (vi) 
of this AD, as applicable for your model airplane.
    (i) GVII-G500 Maintenance Manual 12-13-01 Defueling Procedure-
Defuel, dated August 31, 2020; or 12-13-01 Defueling Procedure-
Defuel, 12-13 Fueling and Defueling Operations Replenishing, Chapter 
12--Servicing, Gulfstream Aerospace GVII-G500 Aircraft Maintenance 
Manual, Document Number GAC-AC-GVII-G500-AMM-0001, Revision 16, 
dated November 30, 2023.
    (ii) GVII-G500 Maintenance Manual 28-26-04 Fuel Boost Pump-
Prime, dated August 31, 2020; or 28-26-04 Fuel Boost Pump-Prime, 28-
26 Engine and APU Fuel Delivery, Chapter 28--Fuel, Gulfstream 
Aerospace GVII-G500 Aircraft Maintenance Manual, Document Number 
GAC-AC-GVII-G500-AMM-0001, Revision 16, dated November 30, 2023.
    (iii) GVII-G600 Maintenance Manual 12-13-01 Defueling Procedure-
Defuel, dated August 31, 2020; or 12-13-01 Defueling Procedure-
Defuel, 12-13 Fueling and Defueling Operations Replenishing, Chapter 
12--Servicing, Gulfstream Aerospace GVII-G600 Aircraft Maintenance 
Manual, Document Number GAC-AC-GVII-G600-AMM-0001, Revision 12, 
dated November 30, 2023.
    (iv) GVII-G600 Maintenance Manual 28-26-04 Fuel Boost Pump-
Prime, dated August 31, 2020.
    (v) GVII-G600 Maintenance Manual 28-26-04 Fuel Boost Pump-
Removal/Installation, dated August 31, 2020; or 28-26-04 Fuel Boost 
Pump-Removal/Installation, 28-26 Engine and APU Fuel Delivery, 
Chapter 28--Fuel, Gulfstream Aerospace GVII-G600 Aircraft 
Maintenance Manual, Document Number GAC-AC-GVII-G600-AMM-0001, 
Revision 12, dated November 30, 2023.
    (vi) GVII-G600 Maintenance Manual 28-26-05 Fuel Boost Pump 
Canister-Removal/Installation, dated August 31, 2020.
    (2) Revise your existing airplane flight manual (AFM) by 
including in the AFM the airplane flight manual supplement (AFMS) 
listed in paragraph (g)(2)(i), (ii), or (iii) of this AD that is 
applicable to your model airplane. Using a later AFM revision with 
information identical to that contained in the AFMS specified for 
your airplane is acceptable for compliance with the requirement of 
this paragraph.
    (i) Gulfstream Aerospace GVII-G500 Airplane Flight Manual 
Supplement No. GVII-G500 (Issue 1)--2020-05, dated September 8, 
2020; or
    (ii) Gulfstream Aerospace GVII-G500 Airplane Flight Manual 
Supplement No. GVII-G500-2020-06, dated September 8, 2020; or
    (iii) Gulfstream Aerospace GVII-G600 Airplane Flight Manual 
Supplement No. GVII-G600-2020-06, dated September 8, 2020.
    (3) The action required by paragraph (g)(2) of this AD may be 
performed by the owner/operator (pilot) holding at least a private 
pilot certificate and must be entered into the aircraft records 
showing compliance with this AD in accordance with 14 CFR 43.9(a)(1) 
through (4), and 14 CFR 91.417(a)(2)(v). The record must be 
maintained as required by 14 CFR 91.417, 121.380, or 135.439.

(h) New Requirements

    For Model GVII-G500 airplane S/Ns 72001 and 72007 through 72062 
inclusive; and Model GVII-G600 airplane S/Ns 73002, 73004, 73006 
through 73040 inclusive, 73042, and 73043: Except as specified in 
paragraph (i) of this AD, within 24 months after the effective date 
of this AD, do all actions specified in paragraph III.D. and all 
applicable actions identified as ``RC'' (required for compliance) 
in, and in accordance with, the Accomplishment Instructions of 
Gulfstream GVII-G500 Customer Bulletin No. 069 or Gulfstream GVII-
G600 Customer Bulletin No. 037, both Revision A, both dated February 
2, 2023, as applicable.
    Note 1 to paragraph (h): The serial number on the aft exterior 
of the pump is not the pump serial number.
    Note 2 to paragraph (h): Guidance on pump removal and 
installation procedures can be found in Gulfstream Aerospace GVII-
G500 Aircraft Maintenance Manual, Document Number GAC-AC-GVII-G500-
AMM-0001, Revision 12, dated June 15, 2022; and Gulfstream Aerospace 
GVII-G600 Aircraft Maintenance Manual, Document Number GAC-AC-GVII-
G600-AMM-0001, Revision 8, dated June 15, 2022.

(i) Service Information Exception

    Where Gulfstream GVII-G500 Customer Bulletin No. 069 and 
Gulfstream GVII-G600 Customer Bulletin No. 037, both Revision A, 
both dated February 2, 2023, specify to return any pump for repair, 
this AD requires replacing the pump in accordance with the 
applicable service information identified in paragraph (h) of this 
AD.

(j) Terminating Action for Paragraph (g) of This AD

    The requirements of paragraph (g) of this AD are terminated if 
all applicable actions required by paragraph (h) of this AD have 
been accomplished.

(k) Parts Installation Limitation

    As of the effective date of the AD, no person may install on any 
airplane a fuel boost pump having a part and serial number specified 
in Table 1 of Gulfstream GVII-G500 Customer Bulletin No. 069 or 
Gulfstream GVII-G600 Customer Bulletin No. 037, both Revision A, 
both dated February 2, 2023, as applicable, unless that pump is 
marked with the letter ``C'' to the right of the ``INSP'' legend on 
the pump data area.

(l) Credit for Previous Actions

    This paragraph provides credit for the actions specified in 
paragraph (h) of this AD, if those actions were performed before the 
effective date of this AD using the service information identified 
in paragraphs (l)(1) and (2) of this AD, as applicable. This service 
information is not incorporated by reference in this AD.
    (1) Gulfstream GVII-G500 Customer Bulletin No. 069, dated 
October 19, 2022.
    (2) Gulfstream GVII-G600 Customer Bulletin No. 037, dated 
October 19, 2022.

(m) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, East Certification 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 the attention of 
the person identified in paragraph (n)(1) of this AD.
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the responsible Flight Standards Office.
    (3) AMOCs approved for AD 2020-23-04 are approved as AMOCs for 
the corresponding provisions of this AD.
    (4) For service information that contains steps that are labeled 
as Required for Compliance (RC), the provisions of paragraphs 
(m)(4)(i) and (ii) of this AD apply.
    (i) The steps labeled as RC, including substeps under an RC step 
and any figures identified in an RC step, must be done to comply 
with the AD. An AMOC is required for any deviations to RC steps, 
including substeps and identified figures.
    (ii) Steps not labeled as RC may be deviated from using accepted 
methods in accordance with the operator's maintenance or inspection 
program without obtaining approval of an AMOC, provided the RC 
steps, including substeps and identified figures, can

[[Page 21436]]

still be done as specified, and the airplane can be put back in an 
airworthy condition.

(n) Related Information

    (1) For more information about this AD, contact Jared Meyer, 
Aviation Safety Engineer, FAA, 1701 Columbia Avenue, College Park, 
GA 30337; phone: 404-474-5534; email: [email protected].
    (2) Service information identified in this AD that is not 
incorporated by reference is available at the address specified in 
paragraph (o)(5) of this AD.

(o) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) 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.
    (3) The following service information was approved for IBR on 
May 2, 2024.
    (i) Gulfstream GVII-G500 Customer Bulletin No. 069, Revision A, 
dated February 2, 2023.
    (ii) Gulfstream GVII-G600 Customer Bulletin No. 037, Revision A, 
dated February 2, 2023.
    (iii) 12-13-01 Defueling Procedure-Defuel, 12-13 Fueling and 
Defueling Operations Replenishing, Chapter 12--Servicing, Gulfstream 
Aerospace GVII-G500 Aircraft Maintenance Manual, Document Number 
GAC-AC-GVII-G500-AMM-0001, Revision 16, dated November 30, 2023.
    Note 3 to paragraph (o)(3)(iii): The manufacturer name is 
located only on the title page of the documents identified in 
paragraphs (o)(3)(iii) and (iv) of this AD.
    (iv) 12-13-01 Defueling Procedure-Defuel, 12-13 Fueling and 
Defueling Operations Replenishing, Chapter 12--Servicing, Gulfstream 
Aerospace GVII-G600 Aircraft Maintenance Manual, Document Number 
GAC-AC-GVII-G600-AMM-0001, Revision 12, dated November 30, 2023.
    (v) 28-26-04 Fuel Boost Pump-Prime, 28-26 Engine and APU Fuel 
Delivery, Chapter 28--Fuel, Gulfstream Aerospace GVII-G500 Aircraft 
Maintenance Manual, Document Number GAC-AC-GVII-G500-AMM-0001, 
Revision 16, dated November 30, 2023.
    Note 4 to paragraph (o)(3)(v): The manufacturer name is located 
only on the title page of the documents identified in paragraphs 
(o)(3)(v) and (vi) of this AD.
    (vi) 28-26-04 Fuel Boost Pump-Removal/Installation, 28-26 Engine 
and APU Fuel Delivery, Chapter 28--Fuel, Gulfstream Aerospace GVII-
G600 Aircraft Maintenance Manual, Document Number GAC-AC-GVII-G600-
AMM-0001, Revision 12, dated November 30, 2023.
    (4) The following service information was approved for IBR on 
November 24, 2020 (85 FR 71232, November 9, 2020).
    (i) Gulfstream Aerospace GVII-G500 Airplane Flight Manual 
Supplement No. GVII-G500 (Issue 1)--2020-05, dated September 8, 
2020.
    (ii) Gulfstream Aerospace GVII-G500 Airplane Flight Manual 
Supplement No. GVII-G500-2020-06, dated September 8, 2020.
    (iii) Gulfstream Aerospace GVII-G600 Airplane Flight Manual 
Supplement No. GVII-G600-2020-06 dated September 8, 2020.
    (iv) GVII-G500 Maintenance Manual 12-13-01 Defueling Procedure-
Defuel, dated August 31, 2020.
    Note 5 to paragraph (o)(4)(iv): Although the documents in 
paragraphs (o)(4)(iv) through (ix) have the watermarked words 
``advance copy'' on each page of the document, these are not advance 
draft copies but final versions of temporary revisions to the AMM, 
pending incorporation into the AMM at the next revision.
    (v) GVII-G500 Maintenance Manual 28-26-04 Fuel Boost Pump-Prime, 
dated August 31, 2020.
    (vi) GVII-G600 Maintenance Manual 12-13-01 Defueling Procedure-
Defuel, dated August 31, 2020.
    (vii) GVII-G600 Maintenance Manual 28-26-04 Fuel Boost Pump-
Prime, dated August 31, 2020.
    (viii) GVII-G600 Maintenance Manual 28-26-04 Fuel Boost Pump-
Removal/Installation, dated August 31, 2020.
    (ix) GVII-G600 Maintenance Manual 28-26-05 Fuel Boost Pump 
Canister-Removal/Installation, dated August 31, 2020.
    (5) For service information identified in this AD, contact 
Gulfstream Aerospace Corporation, Technical Publications Dept., P.O. 
Box 2206, Savannah, GA 31402-2206; telephone 800-810-4853; email 
[email protected]; website gulfstream.com/en/customer-support.
    (6) 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.
    (7) 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 March 21, 2024.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness Division, Aircraft 
Certification Service.
[FR Doc. 2024-06478 Filed 3-27-24; 8:45 am]
BILLING CODE 4910-13-P