Federal Register / Vol. 89, No. 20 / Tuesday, January 30, 2024 / Rules and Regulations 5765 

access any emergency exit, the glass 

installations on the Gulfstream Model 

GVIII–G700 and GVIII–G800 series 

airplanes must meet the following 

conditions: 

1. Material Fragmentation—The glass 

used must be tempered or otherwise 

treated to ensure that when fractured, it 

breaks into small pieces with relatively 

dull edges. The glass component 

installation must retain all glass 

fragments to minimize the danger from 

flying glass shards or pieces. The 

applicant must demonstrate this by 

impact and puncture testing and testing 

to failure. 

2. Strength—The glass component 

must be strong enough to meet the load 

requirements for all flight and landing 

loads including any of the applicable 

emergency landing conditions in 

subparts C & D of 14 CFR part 25. In 

addition, glass components that are 

located such that they are not protected 

from contact with cabin occupants must 

not fail due to abusive loading, such as 

impact from occupants stumbling into, 

leaning against, sitting on, or performing 

other intentional or unintentional 

forceful contact. The effect of design 

details such as geometric discontinuities 

or surface finish e.g., embossing, 

etching, etc., must be assessed. 

3. Retention—The glass component, 

as installed in the airplane, must not 

come free of its restraint, or mounting 

system in the event of an emergency 

landing. Both the directional loading 

and rebound conditions must be 

assessed. The effect of design details 

such as geometric discontinuities or 

surface finish e.g., embossing, etching, 

etc., must be assessed. 

4. Instructions for Continued 

Airworthiness—The instructions for 

continued airworthiness must reflect the 

fastening method used and must ensure 

the reliability of the methods used (e.g., 

life limit of adhesives, or clamp 

connection). Inspection methods and 

intervals must be defined based upon 

adhesion data from the manufacturer of 

the adhesive or actual adhesion test 

data, if necessary. 

Issued in in Kansas City, Missouri, on 

January 24, 2024. 

Patrick R. Mullen, 

Manager, Technical Policy Branch, Policy and 

Standards Division, Aircraft Certification 

Service. 

[FR Doc. 2024–01739 Filed 1–29–24; 8:45 am] 

BILLING CODE P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 25 

[Docket No. FAA–2023–2442; Special 

Conditions No. 25–850–SC] 

Special Conditions: Gulfstream 

Aerospace Corporation Model GVIII– 

G700 and GVIII–G800 Series Airplanes; 

Limit Pilot Forces for Side-Stick 

Controllers 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final special conditions; request 

for comments. 

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 a side-stick controller 

for one-hand operation requiring wrist 

motion only, not arms. 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: This action is effective on 

Gulfstream on January 30, 2024. Send 

comments on or before March 15, 2024. 

ADDRESSES: Send comments identified 

by Docket No. FAA–2023–2442 using 

any of the following methods: 

• Federal eRegulations Portal: Go to 

www.regulations.gov and follow the 

online instructions for sending your 

comments electronically. 

• Mail: Send comments to Docket 

Operations, M–30, U.S. Department of 

Transportation (DOT), 1200 New Jersey 

Avenue SE, Room W12–140, West 

Building Ground Floor, Washington, DC 

20590–0001. 

• Hand Delivery or Courier: Take 

comments to Docket Operations in 

Room W12–140 of the West Building 

Ground Floor at 1200 New Jersey 

Avenue SE, Washington, DC, between 9 

a.m. and 5 p.m., Monday through 

Friday, except Federal holidays. 

• Fax: Fax comments to Docket 

Operations at 202–493–2251. 

• Docket: Background documents or 

comments received may be read at 

www.regulations.gov at any time. 

Follow the online instructions for 

accessing the docket or go to Docket 

Operations in Room W12–140 of the 

West Building Ground Floor at 1200 

New Jersey Avenue SE, Washington, 

DC, between 9 a.m. and 5 p.m., Monday 

through Friday, except Federal holidays. 

FOR FURTHER INFORMATION CONTACT: 

Todd Martin, Airframe Section, AIR– 

622, Technical Policy Branch, Aircraft 

Certification Service, Federal Aviation 

Administration, 2200 South 216th 

Street, Des Moines, Washington 98198; 

telephone 206–231–3210; email 

Todd.Martin@faa.gov. 

SUPPLEMENTARY INFORMATION: The 

substance of these special conditions 

has been published in the Federal 

Register for public comment in several 

prior instances with no substantive 

comments received. Therefore, the FAA 

finds, pursuant to title 14, Code of 

Federal Regulations (14 CFR) 11.38(b), 

that new comments are unlikely, and 

notice and comment prior to this 

publication are unnecessary. 

Privacy 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 

information as described in title 14 CFR 

11.35, the FAA will post all comments 

received without change to 

www.regulations.gov, including any 

personal information you provide. The 

FAA will also post a report 

summarizing each substantive verbal 

contact received about these special 

conditions. 

Confidential Business Information 

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 these special 

conditions contain commercial or 

financial information that is customarily 

treated as private, that you actually treat 

as private, and that is relevant or 

responsive to these special conditions, 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 the 

indicated comments will not be placed 

in the public docket of these special 

conditions. Send submissions 

containing CBI to Todd Martin, 

Airframe Section, AIR–622, Technical 

Policy Branch, Aircraft Certification 

Service, Federal Aviation 

Administration, 2200 South 216th 

Street, Des Moines, Washington 98198; 


khammond on DSKJM1Z7X2PROD with RULES
5766 Federal Register / Vol. 89, No. 20 / Tuesday, January 30, 2024 / Rules and Regulations 

email Todd.Martin@faa.gov. Comments 

the FAA receives, which are not 

specifically designated as CBI, will be 

placed in the public docket for these 

special conditions. 

Comments Invited 

The FAA invites interested people to 

take part in this rulemaking by sending 

written comments, data, or views. The 

most helpful comments reference a 

specific portion of the special 

conditions, explain the reason for any 

recommended change, and include 

supporting data. 

The FAA will consider all comments 

received by the closing date for 

comments and will consider comments 

filed late if it is possible to do so 

without incurring delay. The FAA may 

change these special conditions based 

on the comments received. 

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 

are derivatives of the Model GVI 

currently approved under Type 

Certificate No. T00015AT, are twinengine, transport-category airplanes, 

with maximum 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 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 

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. 

Novel or Unusual Design Feature 

The Gulfstream Model GVIII–G700 

and GVIII–G800 series airplanes will 

incorporate the following novel or 

unusual design feature: 

A side-stick controller for one-hand 

operation requiring wrist motion only, 

not arms. 

Discussion 

The Gulfstream Model GVIII–700 and 

GVIII–800 series airplanes are equipped 

with side-stick controllers instead of 

conventional wheel or control stick 

controllers. Side-stick controllers are 

designed to be operated using only one 

hand. The requirements of § 25.397(c), 

which define limit pilot forces and 

torques for conventional wheel or stick 

controllers, are not adequate for sidestick controllers because pilot forces are 

applied to side-stick controllers with 

only the wrist, not arms. Special 

conditions are necessary to specify the 

appropriate loading conditions for sidestick controllers. 

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. 

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 that model as 

well. 

Conclusion 

This action affects only a certain 

novel or unusual design feature on 

Gulfstream Model GVIII–G700 and 

GVIII–G800 series 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, and 44704. 

The Special Conditions 

D Accordingly, pursuant to the 

authority delegated to me by the 

Administrator, the following special 

conditions are issued, in lieu of the 

aileron-control and elevator-control 

forces specified in § 25.397(c), as part of 

the type certification basis for 

Gulfstream Aerospace Corporation 

Model GVIII–G700 and GVIII–G800 

series airplanes. 

For Gulfstream Aerospace 

Corporation Model GVIII–G700 and 

GVIII–G800 series airplanes equipped 

with side-stick controls designed for 

forces to be applied by one wrist and 

not arms, the limit pilot forces are as 

follows. 

(a) For all components between and 

including the side-stick controlassembly handle and its control stops: 

Pitch Roll 

Nose up, 200 lbs 

force.

Nose left, 100 lbs 

force. 

Nose down, 200 lbs 

force.

Nose right, 100 lbs 

force. 

(b) For all other components of the 

side-stick control assembly, but 

excluding the internal components of 

the electrical sensor assemblies, to avoid 

damage to the control system as the 

result of an in-flight jam: 

Pitch Roll 

Nose up, 125 lbs 

force.

Nose left, 50 lbs 

force. 

Nose down, 125 lbs 

force.

Nose right, 50 lbs 

force. 

Issued in Kansas City, Missouri, on January 

24, 2024. 

Patrick R. Mullen, 

Manager, Technical Innovation Policy 

Branch, Policy and Innovation Division, 

Aircraft Certification Service. 

[FR Doc. 2024–01741 Filed 1–29–24; 8:45 am] 

BILLING CODE 4910–13–P 


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