23578 Federal Register / Vol. 81, No. 78 / Friday, April 22, 2016 / Rules and Regulations 

2. Prevent the occurrence of selfsustaining, uncontrollable increases in 

temperature or pressure. 

3. Not emit explosive or toxic gases, 

either in normal operation or as a result 

of its failure, that may accumulate in 

hazardous quantities within the 

airplane. 

4. Meet the requirements of § 25.863. 

5. Not damage surrounding structure 

or adjacent systems, equipment, or 

electrical wiring from corrosive fluids or 

gases that may escape in such a way as 

to cause a major or more-severe failure 

condition. 

6. Have provisions to prevent any 

hazardous effect on airplane structure or 

systems caused by the maximum 

amount of heat it can generate due to 

any failure of it or its individual cells. 

7. Have a failure sensing and warning 

system to alert the flightcrew if its 

failure affects safe operation of the 

airplane. 

8. Have a means for the flightcrew or 

maintenance personnel to determine the 

battery charge state if the battery’s 

function is required for safe operation of 

the airplane. 

Note 1: A battery system consists of the 

battery and any protective, monitoring, and 

alerting circuitry or hardware inside or 

outside of the battery. It also includes vents 

(where necessary) and packaging. For the 

purpose of these special conditions, a 

‘‘battery’’ and ‘‘battery system’’ are referred to 

as a battery. 

Issued in Renton, Washington, on April 14, 

2016. 

Victor Wicklund, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2016–09311 Filed 4–21–16; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 25 

[Docket No. FAA–2016–4819; Special 

Conditions No. 25–615–SC] 

Special Conditions: Bombardier Inc. 

Model BD–700–2A12 and BD–700– 

2A13 Airplanes; Airplane Electronic 

System Security Protection From 

Unauthorized External Access 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final special conditions; request 

for comments. 

SUMMARY: These special conditions are 

issued for the Bombardier Inc. Model 

BD–700–2A12 and BD–700–2A13 

airplanes. These airplanes will have a 

digital-systems network architecture 

composed of several connected 

networks that may allow access to or by 

external computer systems and 

networks, and may result in airplane 

systems-security vulnerabilities. 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 

Bombardier Inc. on April 22, 2016. We 

must receive your comments by June 6, 

2016. 

ADDRESSES: Send comments identified 

by docket number FAA–2016–4819 

using any of the following methods: 

• Federal eRegulations Portal: Go to 

http://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. 

Privacy: The FAA will post all 

comments it receives, without change, 

to http://www.regulations.gov/, 

including any personal information the 

commenter provides. Using the search 

function of the docket Web site, anyone 

can find and read the electronic form of 

all comments received into any FAA 

docket, including the name of the 

individual sending the comment (or 

signing the comment for an association, 

business, labor union, etc.). DOT’s 

complete Privacy Act Statement can be 

found in the Federal Register published 

on April 11, 2000 (65 FR 19477–19478), 

as well as at http://DocketsInfo.dot. 

gov/. 

Docket: Background documents or 

comments received may be read at 

http://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: 

Varun Khanna, FAA, Airplane and 

Flight Crew Interface, ANM–111, 

Transport Airplane Directorate, Aircraft 

Certification Service, 1601 Lind Avenue 

SW., Renton, Washington 98057–3356; 

telephone 425–227–1298; facsimile 

425–227–1149. 

SUPPLEMENTARY INFORMATION: The 

substance of these special conditions 

has been subject to the public comment 

process in several prior instances with 

no substantive comments received. The 

FAA therefore finds that good cause 

exists for making these special 

conditions effective upon publication in 

the Federal Register. 

Comments Invited 

We invite 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. 

We will consider all comments we 

receive by the closing date for 

comments. We may change these special 

conditions based on the comments we 

receive. 

Background 

On June 13, 2012, Bombardier Inc. 

applied for an amended type certificate 

for their new Model BD–700–2A12 and 

BD–700–2A13 airplanes. These 

airplanes are derivatives of the Model 

BD–700 series of airplanes, and are 

marketed as the Bombardier Global 7000 

and Global 8000, respectively. These 

airplanes are ultra-long-range, 

executive-interior business jets. 

The Model BD–700–2A12 and BD– 

700–2A13 airplanes have a maximum 

certified passenger capacity of 19, and 

include new high-speed transonic wings 

with improved aerodynamic efficiency 

and a pressurized cabin for luxury 

interiors. 

Type Certification Basis 

Under the provisions of Title 14, Code 

of Federal Regulations (14 CFR) 21.101, 

Bombardier Inc. must show that the 

Model BD–700–2A12 and BD–700– 

2A13 airplanes meet the applicable 

provisions of part 25 as amended by 

Amendments 25–1 through 25–137. 

If the Administrator finds that the 

applicable airworthiness regulations 

(i.e., 14 CFR part 25) do not contain 

adequate or appropriate safety standards 

for the Model BD–700–2A12 and BD– 

700–2A13 airplanes because of a novel 

or unusual design feature, special 

conditions are prescribed under the 

provisions of § 21.16. 


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Federal Register / Vol. 81, No. 78 / Friday, April 22, 2016 / Rules and Regulations 23579 

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 Model BD–700–2A12 

and BD–700–2A13 airplanes must 

comply with the fuel-vent and exhaustemission 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 § 11.38, and they become part of 

the type certification basis under 

§ 21.101. 

Novel or Unusual Design Features 

The Model BD–700–2A12 and BD– 

700–2A13 airplanes will incorporate the 

following novel or unusual design 

feature: A digital-systems network 

architecture composed of several 

connected networks. This network 

architecture and network configuration 

will have the capability to allow access 

to or by external network sources, and 

may be used for or interfaced with a 

diverse set of functions, including: 

• Flight-safety-related control, 

communication, and navigation systems 

(airplane-control domain); 

• Operator business and 

administrative support (operatorinformation domain); and 

• Passenger information and 

entertainment systems (passengerentertainment domain). 

Discussion 

The Model BD–700–2A12 and BD– 

700–2A13 airplanes’ digital-systems 

network architecture is novel or unusual 

for commercial transport airplanes as it 

allows connection to airplane electronic 

systems and networks, and access from 

sources external to the airplane (e.g., 

operator networks, wireless devices, 

Internet connectivity, service-provider 

satellite communications, electronic 

flight bags, etc.) to the previously 

isolated airplane electronic assets. 

Airplane electronic assets include 

electronic equipment and systems, 

instruments, networks, servers, software 

and electronic components, fieldloadable software and hardware 

applications, databases, etc. This 

proposed design may result in network 

security vulnerabilities from intentional 

or unintentional corruption of data and 

systems required for the safety, 

operation, and maintenance of the 

airplane. 

The existing regulations and guidance 

material did not anticipate these types 

of digital-system network architectures, 

nor access to airplane systems. 

Furthermore, 14 CFR part 25 

regulations, and current system-safety 

assessment policy and techniques, do 

not address potential security 

vulnerabilities by unauthorized access 

to airplane data busses and servers. 

Therefore, these special conditions are 

issued to ensure that the security, 

integrity, and availability of airplane 

systems are not compromised by certain 

wired or wireless electronic connections 

between airplane data busses and 

networks. 

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 Model 

BD–700–2A12 and BD–700–2A13 

airplanes. Should Bombardier Inc. apply 

at a later date for a change to the type 

certificate to include another model 

incorporating 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 one 

model series of airplanes. It is not a rule 

of general applicability. 

The substance of these special 

conditions has been subjected to the 

notice and comment period in several 

prior instances and has been derived 

without substantive change from those 

previously issued. It is unlikely that 

prior public comment would result in a 

significant change from the substance 

contained herein. Therefore, the FAA 

has determined that prior public notice 

and comment are unnecessary and 

impracticable, and good cause exists for 

adopting these special conditions upon 

issuance. The FAA is requesting 

comments to allow interested persons to 

submit views that may not have been 

submitted in response to the prior 

opportunities for comment described 

above. 

List of Subjects in 14 CFR Part 25 

Aircraft, Aviation safety, Reporting 

and recordkeeping requirements. 

The authority citation for these 

special conditions is as follows: 

Authority: 49 U.S.C. 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 electronic systemsecurity protection from unauthorized 

external access on Bombardier Inc. 

Model BD–700–2A12 and BD–700– 

2A13 airplanes. 

1. The applicant must ensure that the 

airplane electronic systems are 

protected from access by unauthorized 

sources external to the airplane, 

including those possibly caused by 

maintenance activity. 

2. The applicant must ensure that 

electronic system-security threats are 

identified and assessed, and that 

effective electronic system-security 

protection strategies are implemented to 

protect the airplane from all adverse 

impacts on safety, functionality, and 

continued airworthiness. 

3. The applicant must establish 

appropriate procedures to allow the 

operator to ensure that continued 

airworthiness of the airplane is 

maintained, including all post-typecertification modifications that may 

have an impact on the approved 

electronic system-security safeguards. 

Issued in Renton, Washington, on April 8, 

2016. 

Michael Kaszycki, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2016–09336 Filed 4–21–16; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 25 

[Docket No. FAA–2016–4238; Special 

Conditions No. 25–613–SC] 

Special Conditions: Gulfstream 

Aerospace Corporation Model GVII– 

G500 Airplanes; Airplane Electronic 

System Security Protection From 

Unauthorized External Access 

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 GVII– 

G500 airplane. These airplanes will 


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