Special Conditions: Gulfstream Aerospace Corporation Model GVIII-G700 and GVIII-G800 Series Airplanes; Flight Envelope Protection: Takeoff Stall Protection, 18767-18769 [2024-05661]

Download as PDF khammond on DSKJM1Z7X2PROD with RULES Federal Register / Vol. 89, No. 52 / Friday, March 15, 2024 / Rules and Regulations fulfillment of its obligations, including in the event of a wide-scale disruption or a major disruption; (viii) Has a business continuity plan that— (A) Incorporates the use of two sites providing for sufficient redundancy supporting critical operations that are located at a sufficient geographical distance from each other to have a distinct risk profile; (B) Is designed to enable critical systems, including information technology systems, to recover and resume critical operations and services no later than two hours following disruptive events; (C) Is designed to enable it to complete settlement by the end of the day of the disruption, even in case of extreme circumstances; (D) Sets out criteria and processes by which the designated financial market utility will reestablish availability for affected participants and other entities following a disruption to the designated financial market utility’s critical operations or services; (E) Provides for testing, pursuant to the requirements under paragraphs (a)(17)(i)(A) and (C) of this section, at least annually, of the designated financial market utility’s business continuity arrangements, including the people, processes, and technologies of the sites required under paragraph (a)(17)(viii)(A) of this section, such that— (1) The designated financial market utility can demonstrate that it can run live production at the sites required under paragraph (a)(17)(viii)(A) of this section; (2) The designated financial market utility assesses the capability of its systems and effectiveness of its procedures for data recovery and data reconciliation to meet the recovery and resumption objectives under paragraphs (a)(17)(viii)(B) and (C) of this section, even in case of extreme circumstances, including in the event of data loss or data corruption; and (3) The designated financial market utility can demonstrate that it has geographically dispersed staff who can effectively run the operations and manage the business of the designated financial market utility; and (F) Is reviewed, pursuant to the requirements under paragraphs (a)(17)(i)(B) and (C) of this section, at least annually, in order to— (1) Incorporate lessons learned from actual and averted disruptions; and (2) Update scenarios and assumptions in order to ensure responsiveness to the evolving risk environment and VerDate Sep<11>2014 16:00 Mar 14, 2024 Jkt 262001 incorporate new and evolving sources of operational risk; and (ix) Has systems, policies, procedures, and controls that effectively identify, monitor, and manage risks associated with third-party relationships, and that ensure that, for any service that is performed for the designated financial market utility by a third party, risks are identified, monitored, and managed to the same extent as if the designated financial market utility were performing the service itself. In this regard, the designated financial market utility— (A) Regularly conducts risk assessments of third parties; (B) Establishes information-sharing arrangements, as appropriate, with third parties that provide services material to any of the designated financial market utility’s critical operations or services; and (C) Addresses in its business continuity management and testing, as appropriate, third parties that provide services material to any of the designated financial market utility’s critical operations or services. * * * * * By order of the Board of Governors of the Federal Reserve System. Ann E. Misback, Secretary of the Board. [FR Doc. 2024–05322 Filed 3–14–24; 8:45 am] BILLING CODE 6210–01–P Federal Aviation Administration 14 CFR Part 25 [Docket No. FAA–2023–2437; Special Conditions No. 25–858–SC] Special Conditions: Gulfstream Aerospace Corporation Model GVIII– G700 and GVIII–G800 Series Airplanes; Flight Envelope Protection: Takeoff Stall Protection Federal Aviation Administration (FAA), DOT. ACTION: Final special conditions. AGENCY: These special conditions are issued for the Gulfstream Aerospace Corporation (Gulfstream) Model GVIII– G700 and GVIII–G800 series airplanes. These airplanes will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. This design feature is an envelope protection function to protect the airplane from over- and rapid-rotation on takeoff. The applicable airworthiness regulations do SUMMARY: Frm 00019 Fmt 4700 not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards. DATES: Effective March 15, 2024. FOR FURTHER INFORMATION CONTACT: Troy Brown, Performance and Environment Unit, AIR–621A, Technical Policy Branch, Policy and Standards Division, Aircraft Certification Service, Federal Aviation Administration, 1801 S Airport Rd., Wichita, KS 67209–2190; telephone and fax 405–666–1050; email troy.a.brown@faa.gov. SUPPLEMENTARY INFORMATION: Background On December 31, 2019, Gulfstream applied for an amendment to Type Certificate No. T00015AT to include the new Model GVIII–G700 and GVIII–G800 series airplanes. These airplanes, which will be derivatives of the Model GVI currently approved under Type Certificate No. T00015AT, are twinengine, transport-category airplanes, with seating for 19 passengers, and a maximum take-off weight of 107,600 pounds (GVIII–G700) and 105,600 pounds (GVIII–G800). Type Certification Basis DEPARTMENT OF TRANSPORTATION PO 00000 18767 Sfmt 4700 Under the provisions of title 14, Code of Federal Regulations (14 CFR) 21.101, Gulfstream must show that the Model GVIII–G700 and GVIII–G800 series airplanes meet the applicable provisions of the regulations listed in Type Certificate No. T00015AT, or the applicable regulations in effect on the date of application for the change, except for earlier amendments as agreed upon by the FAA. If the Administrator finds that the applicable airworthiness regulations (e.g., 14 CFR part 25) do not contain adequate or appropriate safety standards for the Gulfstream Model GVIII–G700 and GVIII–G800 series airplanes because of a novel or unusual design feature, special conditions are prescribed under the provisions of § 21.16. Special conditions are initially applicable to the model for which they are issued. Should the type certificate for that model be amended later to include any other model that incorporates the same novel or unusual design feature, or should any other model already included on the same type certificate be modified to incorporate the same novel or unusual design feature, these special conditions E:\FR\FM\15MRR1.SGM 15MRR1 18768 Federal Register / Vol. 89, No. 52 / Friday, March 15, 2024 / Rules and Regulations would also apply to the other model under § 21.101. In addition to the applicable airworthiness regulations and special conditions, the Gulfstream Model GVIII–G700 and GVIII–G800 series airplanes must comply with the exhaust-emission requirements of 14 CFR part 34, and the noise-certification requirements of 14 CFR part 36. The FAA issues special conditions, as defined in 14 CFR 11.19, in accordance with 14 CFR 11.38, and they become part of the type certification basis under § 21.101. khammond on DSKJM1Z7X2PROD with RULES Novel or Unusual Design Features The Gulfstream Model GVIII–G700 and GVIII–G800 airplanes will incorporate the following novel or unusual design feature: An envelope protection function within the electronic flight control system (EFCS) to protect the airplane from over- and rapid-rotation on takeoff. Discussion The Gulfstream Model GVIII–G700 and GVIII–G800 series airplanes are equipped with an envelope protection function within the EFCS that is designed to provide enhanced takeoff stall protection (TSP) function. This feature protects against excessive pitch rate and pitch attitude during takeoff using a limitation in the electronic flight controls. It is designed to provide conventional behavior using a normal takeoff technique, including ‘‘performance’’ takeoffs. The limit to pitch attitude will indirectly limit the angle of attack. The TSP involves a control law update in the on-ground control mode only. The Model GVIII–G700 and GVIII– G800 series airplane’s pitch control behavior, with regard to rotation rates and attitudes for normal takeoffs, will be similar to other Gulfstream airplanes equipped with side sticks; however, takeoffs with rapid rotation rates and over-rotation will be influenced by the TSP. The current regulations in Subpart B of 14 CFR part 25 do not address envelope protections for electronic flight control systems as this technology is novel or unusual for transport category airplanes. These special conditions are specific to the GVIII– G700 and GVIII–G800 series airplanes. These conditions are necessary to ensure that the TSP function supports safe operation and does not interfere with required maneuvering in normal and emergency operations and in foreseeable atmospheric conditions. The special conditions contain the additional safety standards that the VerDate Sep<11>2014 16:00 Mar 14, 2024 Jkt 262001 Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards. Discussion of Comments and Final Special Conditions The FAA issued Notice of Proposed Special Conditions No. 25–24–01–SC, for the GVIII–G700 and GVIII–G800 series airplanes. This Notice was published in the Federal Register on January 18, 2024 (89 FR 3364). The only comment the FAA received was from the applicant (Gulfstream). Gulfstream requested that the FAA revise the third paragraph of the Discussion section, to better reflect the content and scope of the proposed special conditions. The FAA agrees with this comment as it aligns with proposed regulation text from the Flight Test Harmonization Working Group Phase 2 Rev A Final Report. The identified text has been revised in a manner consistent with Gulfstream’s request.1 Gulfstream requested that the FAA remove certain text from the first paragraph of the Discussion section. The FAA finds that the referenced text is unnecessary for the Discussion and has removed it in these final special conditions. Gulfstream requested that the FAA revise the text of the Special Conditions section (i.e., the requirements) to align with the text of the Flight Test Harmonization Working Group Phase 2 Rev A Final Report.2 The primary difference is that the proposed special conditions included terms applicable to the ‘‘takeoff stall protection function,’’ but the term in the Report, which Gulfstream requested to be used, is the more general ‘‘envelope protection function.’’ The FAA agrees with Gulfstream’s request to make this change for consistency with the 1 Specifically, the Discussion in Notice contained the following text: ‘‘These special conditions are specific to the GVIII–700 and GVIII–G800 series airplanes. These conditions are necessary to ensure a smooth transition from normal flight to the TSP mode and adequate maneuver capability. These conditions also ensure that the structural limits of the airplane are not exceeded. Furthermore, failure of the TSP function must not create hazardous flight conditions.’’ This text is replaced in these final special conditions with: ‘‘These special conditions are specific to the Takeoff Stall Protection Function of the GVIII–G700 and GVIII–G800 series airplanes. These conditions are necessary to ensure that the TSP function supports safe operation and does not interfere with required maneuvering in normal and emergency operations and in foreseeable atmospheric conditions.’’ 2 The Report is available at https://www.faa.gov/ regulations_policies/rulemaking/committees/ documents/media/09%20-%20FTHWG_Final_ Report_Phase_2_RevA__Apr_2017.pdf; the requested text is at pages 43 and 221, and discussed beginning at page 238. PO 00000 Frm 00020 Fmt 4700 Sfmt 4700 terminology in the Report; but notes that the design feature being addressed by these special conditions remains the same as proposed. The FAA has also added ‘‘simultaneous’’ to the beginning of paragraph (e) as a final conformance with the requested text of the Report. Applicability As discussed above, these special conditions are applicable to the Gulfstream Model GVIII–G700 and GVIII–G800 series airplanes. Should Gulfstream apply at a later date for a change to the type certificate to include another model that incorporates the same novel or unusual design feature, or should any other model already included on the same type certificate be modified to incorporate the same novel or unusual design feature, these special conditions would apply to the other model as well. Under standard practice, the effective date of final special conditions would be 30 days after the date of publication in the Federal Register. However, as the certification date for the Gulfstream Model GVIII–G700 and GVIII–G800 is imminent, the FAA finds that good cause exists to make these special conditions effective upon publication. Conclusion This action affects only a certain novel or unusual design feature on Gulfstream Model GVIII–G700 and GVIII–G800 series of airplanes. It is not a rule of general applicability. List of Subjects in 14 CFR Part 25 Aircraft, Aviation safety, Reporting and recordkeeping requirements. Authority Citation The authority citation for these special conditions is as follows: Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701, 44702, 44704. The Special Conditions Accordingly, pursuant to the authority delegated to me by the Administrator, the following special conditions are issued as part of the type certification basis for the Gulfstream Model GVIII–G700 and GVIII–G800 series airplanes, and will be applied by the FAA to the extent necessary to certify the envelope protection function within the electronic flight control system (EFCS) that protects the airplane from over- and rapid-rotation on takeoff. For airplanes that employ envelope protection functions: (a) Envelope protection functions must not unduly limit the maneuvering capability of the airplane nor interfere with its ability to perform maneuvers E:\FR\FM\15MRR1.SGM 15MRR1 Federal Register / Vol. 89, No. 52 / Friday, March 15, 2024 / Rules and Regulations required for normal and emergency operations. (b) Onset characteristics of each envelope protection function must be appropriate to the phase of flight and type of maneuver and must not conflict with the ability of the pilot to satisfactorily control the airplane flight path, speed, or attitude. (c) Excursions of a limited flight parameter beyond its nominal design limit value due to dynamic maneuvering, airframe and system tolerances, and non-steady atmospheric conditions must not result in unsafe flight characteristics or conditions. (d) Operation of envelope protection functions must not adversely affect aircraft control during expected levels of atmospheric disturbances, nor impede the application of recovery procedures in case of windshear. (e) Simultaneous activation of envelope protection functions must not result in adverse coupling or adverse priority. (f) In case of abnormal attitude or excursion of any flight parameters outside the protected boundaries, operation of envelope protection functions must not hinder airplane recovery. Issued in Kansas City, Missouri, on March 12, 2024. James David Foltz, Manager, Technical Policy Branch, Policy and Standards Division, Aircraft Certification Service. [FR Doc. 2024–05661 Filed 3–13–24; 11:15 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2023–1995; Project Identifier MCAI–2023–00905–T; Amendment 39–22682; AD 2024–04–03] RIN 2120–AA64 Airworthiness Directives; Airbus SAS Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Final rule. AGENCY: The FAA is adopting a new airworthiness directive (AD) for certain Airbus SAS Model A318, A319, A320, and A321 series airplanes. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD requires revising the existing maintenance or inspection program, as khammond on DSKJM1Z7X2PROD with RULES SUMMARY: VerDate Sep<11>2014 16:00 Mar 14, 2024 Jkt 262001 applicable, to incorporate new or more restrictive airworthiness limitations, as specified in a European Union Aviation Safety Agency (EASA) 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 19, 2024. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of April 19, 2024. ADDRESSES: AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA–2023–1995; 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 EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email ADs@easa.europa.eu; website easa.europa.eu. You may find this material on the EASA website at ad.easa.europa.eu. • You may view this material that is incorporated by reference 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– 2023–1995. FOR FURTHER INFORMATION CONTACT: Timothy Dowling, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 817–222–5102; email timothy.p.dowling@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 certain Model A318–111, –112, –121, and –122; A319–111, –112, –113, –114, –115, –131, –132, –133, –151N, –153N, and –171N; A320–211, –212, –214, –216, –231, –232, –233, –251N, –252N, –253N, –271N, –272N, and –273N; and A321–111, –112, –131, –211, –212, –213, –231, –232, –251N, PO 00000 Frm 00021 Fmt 4700 Sfmt 4700 18769 –251NX, –252N, –252NX, –253N, –253NX, –271N, –271NX, –272N, and –272NX airplanes. The NPRM published in the Federal Register on October 17, 2023 (88 FR 71506). The NPRM was prompted by AD 2023–0151, dated July 25, 2023 (EASA AD 2023– 0151) (also referred to as the MCAI), issued by EASA, which is the Technical Agent for the Member States of the European Union. The MCAI states that new or more restrictive airworthiness limitations have been developed. In the NPRM, the FAA proposed to require a task (limitation) related to the center wing box front spar stiffeners already in Airbus A318/A319/A320/ A321 ALS Part 2 DT–ALI Revision 09 or A318/A319/A320/A321 ALS Part 2 DT– ALI Revision 09 Variation 9.2 that are required by EASA AD 2022–0085 and EASA AD 2023–0008 respectively (which correspond to FAA AD 2023– 13–10, Amendment 39–22495 (88 FR 50005, August 1, 2023) (AD 2023–13– 10)), and that incorporation of EASA AD 2023–0151 invalidates (terminates) prior instructions for that task. This AD therefore terminates the limitations for tasks identified in the service information referenced in EASA AD 2023–0151 only, as required by paragraph (o) of AD 2023–13–10. The FAA is issuing this AD to address fatigue cracking, accidental damage, or corrosion in principal structural elements, which could result in reduced structural integrity of the airplane. You may examine the MCAI in the AD docket at regulations.gov under Docket No. FAA–2023–1995. Discussion of Final Airworthiness Directive Comments The FAA received a comment from United Airlines (UAL). The following presents the comment received on the NPRM and the FAA’s response. Request To Allow Extensions to Certain Compliance Times UAL requested that the AD allow extensions provided in an Airbus approved Airbus Statement of Airworthiness Compliance (ASAC), when it supports extensions to compliance time of specified ALS part 2 tasks, as an alternative method of compliance (AMOC). UAL noted that Airbus does not have the authority for Design Organization Approval signatures on ASACs, and that Airbus analysis and technical substantiations justifying the extensions provided in an ASAC provide an acceptable level of safety to ensure that the structural integrity of the aircraft is maintained. E:\FR\FM\15MRR1.SGM 15MRR1

Agencies

[Federal Register Volume 89, Number 52 (Friday, March 15, 2024)]
[Rules and Regulations]
[Pages 18767-18769]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2024-05661]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 25

[Docket No. FAA-2023-2437; Special Conditions No. 25-858-SC]


Special Conditions: Gulfstream Aerospace Corporation Model GVIII-
G700 and GVIII-G800 Series Airplanes; Flight Envelope Protection: 
Takeoff Stall Protection

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final special conditions.

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

SUMMARY: These special conditions are issued for the Gulfstream 
Aerospace Corporation (Gulfstream) Model GVIII-G700 and GVIII-G800 
series airplanes. These airplanes will have a novel or unusual design 
feature when compared to the state of technology envisioned in the 
airworthiness standards for transport category airplanes. This design 
feature is an envelope protection function to protect the airplane from 
over- and rapid-rotation on takeoff. The applicable airworthiness 
regulations do not contain adequate or appropriate safety standards for 
this design feature. These special conditions contain the additional 
safety standards that the Administrator considers necessary to 
establish a level of safety equivalent to that established by the 
existing airworthiness standards.

DATES: Effective March 15, 2024.

FOR FURTHER INFORMATION CONTACT: Troy Brown, Performance and 
Environment Unit, AIR-621A, Technical Policy Branch, Policy and 
Standards Division, Aircraft Certification Service, Federal Aviation 
Administration, 1801 S Airport Rd., Wichita, KS 67209-2190; telephone 
and fax 405-666-1050; email [email protected].

SUPPLEMENTARY INFORMATION:

Background

    On December 31, 2019, Gulfstream applied for an amendment to Type 
Certificate No. T00015AT to include the new Model GVIII-G700 and GVIII-
G800 series airplanes. These airplanes, which will be derivatives of 
the Model GVI currently approved under Type Certificate No. T00015AT, 
are twin-engine, transport-category airplanes, with seating for 19 
passengers, and a maximum take-off weight of 107,600 pounds (GVIII-
G700) and 105,600 pounds (GVIII-G800).

Type Certification Basis

    Under the provisions of title 14, Code of Federal Regulations (14 
CFR) 21.101, Gulfstream must show that the Model GVIII-G700 and GVIII-
G800 series airplanes meet the applicable provisions of the regulations 
listed in Type Certificate No. T00015AT, or the applicable regulations 
in effect on the date of application for the change, except for earlier 
amendments as agreed upon by the FAA.
    If the Administrator finds that the applicable airworthiness 
regulations (e.g., 14 CFR part 25) do not contain adequate or 
appropriate safety standards for the Gulfstream Model GVIII-G700 and 
GVIII-G800 series airplanes because of a novel or unusual design 
feature, special conditions are prescribed under the provisions of 
Sec.  21.16.
    Special conditions are initially applicable to the model for which 
they are issued. Should the type certificate for that model be amended 
later to include any other model that incorporates the same novel or 
unusual design feature, or should any other model already included on 
the same type certificate be modified to incorporate the same novel or 
unusual design feature, these special conditions

[[Page 18768]]

would also apply to the other model under Sec.  21.101.
    In addition to the applicable airworthiness regulations and special 
conditions, the Gulfstream Model GVIII-G700 and GVIII-G800 series 
airplanes must comply with the exhaust-emission requirements of 14 CFR 
part 34, and the noise-certification requirements of 14 CFR part 36.
    The FAA issues special conditions, as defined in 14 CFR 11.19, in 
accordance with 14 CFR 11.38, and they become part of the type 
certification basis under Sec.  21.101.

Novel or Unusual Design Features

    The Gulfstream Model GVIII-G700 and GVIII-G800 airplanes will 
incorporate the following novel or unusual design feature:
    An envelope protection function within the electronic flight 
control system (EFCS) to protect the airplane from over- and rapid-
rotation on takeoff.

Discussion

    The Gulfstream Model GVIII-G700 and GVIII-G800 series airplanes are 
equipped with an envelope protection function within the EFCS that is 
designed to provide enhanced takeoff stall protection (TSP) function. 
This feature protects against excessive pitch rate and pitch attitude 
during takeoff using a limitation in the electronic flight controls. It 
is designed to provide conventional behavior using a normal takeoff 
technique, including ``performance'' takeoffs. The limit to pitch 
attitude will indirectly limit the angle of attack.
    The TSP involves a control law update in the on-ground control mode 
only. The Model GVIII-G700 and GVIII-G800 series airplane's pitch 
control behavior, with regard to rotation rates and attitudes for 
normal takeoffs, will be similar to other Gulfstream airplanes equipped 
with side sticks; however, takeoffs with rapid rotation rates and over-
rotation will be influenced by the TSP.
    The current regulations in Subpart B of 14 CFR part 25 do not 
address envelope protections for electronic flight control systems as 
this technology is novel or unusual for transport category airplanes. 
These special conditions are specific to the GVIII-G700 and GVIII-G800 
series airplanes. These conditions are necessary to ensure that the TSP 
function supports safe operation and does not interfere with required 
maneuvering in normal and emergency operations and in foreseeable 
atmospheric conditions.
    The special conditions contain the additional safety standards that 
the Administrator considers necessary to establish a level of safety 
equivalent to that established by the existing airworthiness standards.

Discussion of Comments and Final Special Conditions

    The FAA issued Notice of Proposed Special Conditions No. 25-24-01-
SC, for the GVIII-G700 and GVIII-G800 series airplanes. This Notice was 
published in the Federal Register on January 18, 2024 (89 FR 3364). The 
only comment the FAA received was from the applicant (Gulfstream).
    Gulfstream requested that the FAA revise the third paragraph of the 
Discussion section, to better reflect the content and scope of the 
proposed special conditions. The FAA agrees with this comment as it 
aligns with proposed regulation text from the Flight Test Harmonization 
Working Group Phase 2 Rev A Final Report. The identified text has been 
revised in a manner consistent with Gulfstream's request.\1\
---------------------------------------------------------------------------

    \1\ Specifically, the Discussion in Notice contained the 
following text: ``These special conditions are specific to the 
GVIII-700 and GVIII-G800 series airplanes. These conditions are 
necessary to ensure a smooth transition from normal flight to the 
TSP mode and adequate maneuver capability. These conditions also 
ensure that the structural limits of the airplane are not exceeded. 
Furthermore, failure of the TSP function must not create hazardous 
flight conditions.'' This text is replaced in these final special 
conditions with: ``These special conditions are specific to the 
Takeoff Stall Protection Function of the GVIII-G700 and GVIII-G800 
series airplanes. These conditions are necessary to ensure that the 
TSP function supports safe operation and does not interfere with 
required maneuvering in normal and emergency operations and in 
foreseeable atmospheric conditions.''
---------------------------------------------------------------------------

    Gulfstream requested that the FAA remove certain text from the 
first paragraph of the Discussion section. The FAA finds that the 
referenced text is unnecessary for the Discussion and has removed it in 
these final special conditions.
    Gulfstream requested that the FAA revise the text of the Special 
Conditions section (i.e., the requirements) to align with the text of 
the Flight Test Harmonization Working Group Phase 2 Rev A Final 
Report.\2\ The primary difference is that the proposed special 
conditions included terms applicable to the ``takeoff stall protection 
function,'' but the term in the Report, which Gulfstream requested to 
be used, is the more general ``envelope protection function.'' The FAA 
agrees with Gulfstream's request to make this change for consistency 
with the terminology in the Report; but notes that the design feature 
being addressed by these special conditions remains the same as 
proposed. The FAA has also added ``simultaneous'' to the beginning of 
paragraph (e) as a final conformance with the requested text of the 
Report.
---------------------------------------------------------------------------

    \2\ The Report is available at https://www.faa.gov/regulations_policies/rulemaking/committees/documents/media/09%20-%20FTHWG_Final_Report_Phase_2_RevA__Apr_2017.pdf; the requested text 
is at pages 43 and 221, and discussed beginning at page 238.
---------------------------------------------------------------------------

Applicability

    As discussed above, these special conditions are applicable to the 
Gulfstream Model GVIII-G700 and GVIII-G800 series airplanes. Should 
Gulfstream apply at a later date for a change to the type certificate 
to include another model that incorporates the same novel or unusual 
design feature, or should any other model already included on the same 
type certificate be modified to incorporate the same novel or unusual 
design feature, these special conditions would apply to the other model 
as well.
    Under standard practice, the effective date of final special 
conditions would be 30 days after the date of publication in the 
Federal Register. However, as the certification date for the Gulfstream 
Model GVIII-G700 and GVIII-G800 is imminent, the FAA finds that good 
cause exists to make these special conditions effective upon 
publication.

Conclusion

    This action affects only a certain novel or unusual design feature 
on Gulfstream Model GVIII-G700 and GVIII-G800 series of airplanes. It 
is not a rule of general applicability.

List of Subjects in 14 CFR Part 25

    Aircraft, Aviation safety, Reporting and recordkeeping 
requirements.

Authority Citation

    The authority citation for these special conditions is as follows:

    Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701, 44702, 44704.

The Special Conditions

    Accordingly, pursuant to the authority delegated to me by the 
Administrator, the following special conditions are issued as part of 
the type certification basis for the Gulfstream Model GVIII-G700 and 
GVIII-G800 series airplanes, and will be applied by the FAA to the 
extent necessary to certify the envelope protection function within the 
electronic flight control system (EFCS) that protects the airplane from 
over- and rapid-rotation on takeoff.
    For airplanes that employ envelope protection functions:
    (a) Envelope protection functions must not unduly limit the 
maneuvering capability of the airplane nor interfere with its ability 
to perform maneuvers

[[Page 18769]]

required for normal and emergency operations.
    (b) Onset characteristics of each envelope protection function must 
be appropriate to the phase of flight and type of maneuver and must not 
conflict with the ability of the pilot to satisfactorily control the 
airplane flight path, speed, or attitude.
    (c) Excursions of a limited flight parameter beyond its nominal 
design limit value due to dynamic maneuvering, airframe and system 
tolerances, and non-steady atmospheric conditions must not result in 
unsafe flight characteristics or conditions.
    (d) Operation of envelope protection functions must not adversely 
affect aircraft control during expected levels of atmospheric 
disturbances, nor impede the application of recovery procedures in case 
of windshear.
    (e) Simultaneous activation of envelope protection functions must 
not result in adverse coupling or adverse priority.
    (f) In case of abnormal attitude or excursion of any flight 
parameters outside the protected boundaries, operation of envelope 
protection functions must not hinder airplane recovery.

    Issued in Kansas City, Missouri, on March 12, 2024.
James David Foltz,
Manager, Technical Policy Branch, Policy and Standards Division, 
Aircraft Certification Service.
[FR Doc. 2024-05661 Filed 3-13-24; 11:15 am]
BILLING CODE 4910-13-P

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