Special Conditions: Honeywell, Bombardier Model BD-100-1A10 Airplane; Electronic System Security Protection From Unauthorized Internal Access, 59840-59842 [2021-23553]

Download as PDF 59840 Federal Register / Vol. 86, No. 207 / Friday, October 29, 2021 / Rules and Regulations airplane, as changed, continues to meet the applicable provisions of the regulations listed in Type Certificate No. T00005NY, 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 Bombardier Model BD–100– 1A10 airplane 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 applicant apply for a supplemental type certificate to modify any other model included on the same type certificate 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 Bombardier Model BD– 100–1A10 airplane must comply with the fuel vent and 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 § 11.38, and they become part of the type certification basis under § 21.101. khammond on DSKJM1Z7X2PROD with RULES Novel or Unusual Design Feature The Bombardier Model BD–100–1A10 airplane, as modified by Honeywell, will incorporate the following novel or unusual design feature: Installation of the Honeywell Connected Engine Data Access System (CEDAS) which provides wireless data download capability from the engine’s electronic control unit (ECU) to Honeywell cloud-based storage. CEDAS allows maintenance personnel to wirelessly connect to the ECUs and allows autonomous engine data uploads to cloud data services over WiFi. Discussion The Honeywell supplemental type certificate for the Bombardier Model BD–100–1A10 airplane design adds the Connected Engine Data Access System (CEDAS) architecture which is novel for commercial transport category airplanes. CEDAS allows connection to airplane electronic systems and networks, and access from aircraft external sources (e.g., operator networks, wireless devices, internet connectivity, service provider satellite VerDate Sep<11>2014 15:56 Oct 28, 2021 Jkt 256001 communications, electronic flight bags, etc.) to the previously isolated airplane electronic assets (networks, systems, and databases). The installation of CEDAS may result in network security vulnerabilities from intentional or unintentional corruption of data and systems required for the operations and maintenance of the airplane. The existing FAA regulations did not anticipate these networked airplane system architectures. Furthermore, these regulations and the current guidance material do not address potential security vulnerabilities, which could be exploited by unauthorized access to airplane networks, data buses, and servers. Therefore, these special conditions ensure that the security (i.e., confidentiality, integrity, and availability) of airplane systems is not compromised by unauthorized wired or wireless electronic connections. This includes ensuring that the security of the airplane’s systems is not compromised during maintenance of the airplane’s electronic systems. These special conditions also require the applicant to provide appropriate instructions to the operator to maintain all electronic system safeguards that have been implemented as part of the original network design so that this feature does not allow or reintroduce security threats. 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 Bombardier Model BD–100–1A10 airplane. Should Honeywell apply at a later date for a supplemental type certificate to modify any other model included on Type Certificate No. T00005NY 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 one model of airplane, as modified by Honeywell. It is not a rule of general applicability and affects only the applicant. List of Subjects in 14 CFR Part 25 Aircraft, Aviation safety, Reporting and recordkeeping requirements. PO 00000 Frm 00002 Fmt 4700 Sfmt 4700 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 Bombardier Model BD–100–1A10 airplane, as modified by Honeywell, for airplane electronic system security protection from unauthorized external access. 1. The applicant must ensure airplane electronic system security protection 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 type certification modifications that may have an impact on the approved electronic system security safeguards. Issued in Kansas City, Missouri, on October 25, 2021. Patrick R. Mullen, Manager, Technical Innovation Policy Branch, Policy and Innovation Division, Aircraft Certification Service. [FR Doc. 2021–23552 Filed 10–28–21; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 25 [Docket No. FAA–2021–0907; Special Conditions No. 25–793–SC] Special Conditions: Honeywell, Bombardier Model BD–100–1A10 Airplane; Electronic System Security Protection From Unauthorized Internal Access Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final special conditions; request for comments. AGENCY: E:\FR\FM\29OCR1.SGM 29OCR1 Federal Register / Vol. 86, No. 207 / Friday, October 29, 2021 / Rules and Regulations These special conditions are issued for the Bombardier Model BD– 100–1A10 airplane. This airplane, as modified by Honeywell, 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 the installation of a system that provides wireless data download capability from the engine electronic control unit to Honeywell cloud-based storage. 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 Honeywell on October 29, 2021. Send comments on or before December 13, 2021. SUMMARY: Send comments identified by Docket No. FAA–2021–0907 using any of the following methods: • Federal eRegulations Portal: Go to https://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: Except for Confidential Business Information (CBI) as described in the following paragraph, and other information as described in 14 CFR 11.35, the FAA will post all comments received without change to https:// 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 khammond on DSKJM1Z7X2PROD with RULES ADDRESSES: VerDate Sep<11>2014 15:56 Oct 28, 2021 Jkt 256001 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 the Information Contact below. Comments the FAA receives, which are not specifically designated as CBI, will be placed in the public docket for these special conditions. Docket: Background documents or comments received may be read at https://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, Aircraft Information Systems, AIR–622, Technical Innovation Policy Branch, Policy and Innovation Division, Aircraft Certification Service, Federal Aviation Administration, 2200 South 216th Street, Des Moines, Washington 98198; telephone and fax 206–231–3159; email varun.khanna@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 has determined that prior public notice and comment are unnecessary, and finds that, for the same reason, good cause exists for adopting these special conditions upon publication in the Federal Register. 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. The FAA may change these special conditions based on the comments received. PO 00000 Frm 00003 Fmt 4700 Sfmt 4700 59841 Background On February 24, 2020, Honeywell applied for a supplemental type certificate for installation of the Honeywell Connected Engine Data Access System (CEDAS) in the Bombardier Model BD–100–1A10 airplane, requiring security protection from unauthorized internal access. The Bombardier Model BD–100–1A10 airplane is a twin-engine business jet with a passenger capacity of 16 and a maximum takeoff weight of 40,600 pounds. Type Certification Basis Under the provisions of title 14 Code of Federal Regulations (14 CFR) 21.101, Honeywell must show that the Bombardier Model BD–100–1A10 airplane, as changed, continues to meet the applicable provisions of the regulations listed in Type Certificate No. T00005NY 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 Bombardier Model BD–100– 1A10 airplane 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 applicant apply for a supplemental type certificate to modify any other model included on the same type certificate 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 Bombardier Model BD– 100–1A10 airplane must comply with the fuel vent and 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 § 11.38, and they become part of the type certification basis under § 21.101. Novel or Unusual Design Feature The Bombardier Model BD–100–1A10 airplane, as modified by Honeywell, will incorporate the following novel or unusual design feature: Installation of the Honeywell Connected Engine Data Access System (CEDAS) which provides wireless data E:\FR\FM\29OCR1.SGM 29OCR1 khammond on DSKJM1Z7X2PROD with RULES 59842 Federal Register / Vol. 86, No. 207 / Friday, October 29, 2021 / Rules and Regulations download capability from the engine’s electronic control unit (ECU) to Honeywell cloud-based storage. CEDAS allows maintenance personnel to wirelessly connect to the ECUs and allows autonomous engine data uploads to cloud data services over WiFi. later date for a supplemental type certificate to modify any other model included on Type Certificate No. T00005NY to incorporate the same novel or unusual design feature, these special conditions would apply to that model as well. Discussion The Honeywell supplemental type certificate for the Bombardier Model BD–100–1A10 airplane design adds the Connected Engine Data Access System (CEDAS) architecture which is novel for commercial transport category airplanes. CEDAS allows connection to airplane electronic systems and networks, and access from aircraft external sources (e.g., operator networks, wireless devices, internet connectivity, service provider satellite communications, electronic flight bags, etc.) to the previously isolated airplane electronic assets (networks, systems, and databases). The CEDAS design introduces the potential for unauthorized access to these previously isolated airplane electronic systems and networks by persons inside the airplane. The installation of CEDAS may result in network security vulnerabilities from intentional or unintentional corruption of data and systems required for the operations and maintenance of the airplane. The existing FAA regulations did not anticipate these networked airplane system architectures. Furthermore, these regulations and the current guidance material do not address potential security vulnerabilities, which could be exploited by unauthorized access to airplane networks, data buses, and servers. Therefore, these special conditions ensure that the security (i.e., confidentiality, integrity, and availability) of airplane systems will not be compromised by unauthorized wired or wireless connections from within the airplane. These special conditions also require the applicant to provide appropriate instructions to the operator to maintain all electronic system safeguards that have been implemented as part of the original network design so that this feature does not allow or reintroduce security threats. 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. Conclusion Applicability As discussed above, these special conditions are applicable to the Bombardier Model BD–100–1A10 airplane. Should Honeywell apply at a VerDate Sep<11>2014 15:56 Oct 28, 2021 Jkt 256001 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 Bombardier Model BD–100–1A10 airplane, as modified by Honeywell, for electronic system security protection from unauthorized internal access. 1. The applicant must ensure that the design provides isolation from, or airplane electronic system security protection against, access by unauthorized sources internal to the airplane. The design must prevent inadvertent and malicious changes to, and all adverse impacts upon, airplane equipment, systems, networks, or other assets required for safe flight and operations. 2. The applicant must establish appropriate procedures to allow the operator to ensure that continued airworthiness of the airplane is maintained, including all post type certification modifications that may have an impact on the approved electronic system security safeguards. Issued in Kansas City, Missouri, on October 25, 2021. Patrick R. Mullen, Manager, Technical Innovation Policy Branch, Policy and Innovation Division, Aircraft Certification Service. [FR Doc. 2021–23553 Filed 10–28–21; 8:45 am] BILLING CODE 4910–13–P Frm 00004 Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2021–0840; Project Identifier MCAI–2021–00262–T; Amendment 39–21760; AD 2021–20–22] RIN 2120–AA64 This action affects only a certain novel or unusual design feature on one model of airplane, as modified by Honeywell. It is not a rule of general applicability and affects only the applicant. PO 00000 DEPARTMENT OF TRANSPORTATION Fmt 4700 Sfmt 4700 Airworthiness Directives; Fokker Services B.V. Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Final rule; request for comments. AGENCY: The FAA is adopting a new airworthiness directive (AD) for certain Fokker Services B.V. Model F28 Mark 0070 and Mark 0100 airplanes. This AD was prompted by a report of exfoliation corrosion found during an inspection of the wing front spar lower boom. This AD requires an inspection for corrosion of the wing front spar lower boom, and applicable corrective actions, 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 becomes effective November 15, 2021. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of November 15, 2021. The FAA must receive comments on this AD by December 13, 2021. ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods: • Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments. • Fax: 202–493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For EASA material incorporated by reference (IBR) in this AD, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email ADs@easa.europa.eu; internet www.easa.europa.eu. You may find this IBR material on the EASA website at https://ad.easa.europa.eu. You may view this material at the FAA, Airworthiness Products Section, SUMMARY: E:\FR\FM\29OCR1.SGM 29OCR1

Agencies

[Federal Register Volume 86, Number 207 (Friday, October 29, 2021)]
[Rules and Regulations]
[Pages 59840-59842]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-23553]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 25

[Docket No. FAA-2021-0907; Special Conditions No. 25-793-SC]


Special Conditions: Honeywell, Bombardier Model BD-100-1A10 
Airplane; Electronic System Security Protection From Unauthorized 
Internal Access

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final special conditions; request for comments.

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

[[Page 59841]]

SUMMARY: These special conditions are issued for the Bombardier Model 
BD-100-1A10 airplane. This airplane, as modified by Honeywell, 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 the installation of a system 
that provides wireless data download capability from the engine 
electronic control unit to Honeywell cloud-based storage. 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 Honeywell on October 29, 2021. Send 
comments on or before December 13, 2021.

ADDRESSES: Send comments identified by Docket No. FAA-2021-0907 using 
any of the following methods:
     Federal eRegulations Portal: Go to https://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: Except for Confidential Business Information (CBI) as 
described in the following paragraph, and other information as 
described in 14 CFR 11.35, the FAA will post all comments received 
without change to https://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 
the Information Contact below. Comments the FAA receives, which are not 
specifically designated as CBI, will be placed in the public docket for 
these special conditions.
    Docket: Background documents or comments received may be read at 
https://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, Aircraft Information 
Systems, AIR-622, Technical Innovation Policy Branch, Policy and 
Innovation Division, Aircraft Certification Service, Federal Aviation 
Administration, 2200 South 216th Street, Des Moines, Washington 98198; 
telephone and fax 206-231-3159; email [email protected].

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 has determined that prior public notice and comment 
are unnecessary, and finds that, for the same reason, good cause exists 
for adopting these special conditions upon publication in the Federal 
Register.

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. The FAA may change these special conditions based on the 
comments received.

Background

    On February 24, 2020, Honeywell applied for a supplemental type 
certificate for installation of the Honeywell Connected Engine Data 
Access System (CEDAS) in the Bombardier Model BD-100-1A10 airplane, 
requiring security protection from unauthorized internal access. The 
Bombardier Model BD-100-1A10 airplane is a twin-engine business jet 
with a passenger capacity of 16 and a maximum takeoff weight of 40,600 
pounds.

Type Certification Basis

    Under the provisions of title 14 Code of Federal Regulations (14 
CFR) 21.101, Honeywell must show that the Bombardier Model BD-100-1A10 
airplane, as changed, continues to meet the applicable provisions of 
the regulations listed in Type Certificate No. T00005NY 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 Bombardier Model BD-100-1A10 
airplane 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 applicant apply for a supplemental type 
certificate to modify any other model included on the same type 
certificate to incorporate the same novel or unusual design feature, 
these special conditions would also apply to the other model under 
Sec.  21.101.
    In addition to the applicable airworthiness regulations and special 
conditions, the Bombardier Model BD-100-1A10 airplane must comply with 
the fuel vent and 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 Sec.  11.38, and they become part of the type 
certification basis under Sec.  21.101.

Novel or Unusual Design Feature

    The Bombardier Model BD-100-1A10 airplane, as modified by 
Honeywell, will incorporate the following novel or unusual design 
feature:
    Installation of the Honeywell Connected Engine Data Access System 
(CEDAS) which provides wireless data

[[Page 59842]]

download capability from the engine's electronic control unit (ECU) to 
Honeywell cloud-based storage. CEDAS allows maintenance personnel to 
wirelessly connect to the ECUs and allows autonomous engine data 
uploads to cloud data services over WiFi.

Discussion

    The Honeywell supplemental type certificate for the Bombardier 
Model BD-100-1A10 airplane design adds the Connected Engine Data Access 
System (CEDAS) architecture which is novel for commercial transport 
category airplanes. CEDAS allows connection to airplane electronic 
systems and networks, and access from aircraft external sources (e.g., 
operator networks, wireless devices, internet connectivity, service 
provider satellite communications, electronic flight bags, etc.) to the 
previously isolated airplane electronic assets (networks, systems, and 
databases). The CEDAS design introduces the potential for unauthorized 
access to these previously isolated airplane electronic systems and 
networks by persons inside the airplane. The installation of CEDAS may 
result in network security vulnerabilities from intentional or 
unintentional corruption of data and systems required for the 
operations and maintenance of the airplane.
    The existing FAA regulations did not anticipate these networked 
airplane system architectures. Furthermore, these regulations and the 
current guidance material do not address potential security 
vulnerabilities, which could be exploited by unauthorized access to 
airplane networks, data buses, and servers. Therefore, these special 
conditions ensure that the security (i.e., confidentiality, integrity, 
and availability) of airplane systems will not be compromised by 
unauthorized wired or wireless connections from within the airplane. 
These special conditions also require the applicant to provide 
appropriate instructions to the operator to maintain all electronic 
system safeguards that have been implemented as part of the original 
network design so that this feature does not allow or reintroduce 
security threats.
    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 
Bombardier Model BD-100-1A10 airplane. Should Honeywell apply at a 
later date for a supplemental type certificate to modify any other 
model included on Type Certificate No. T00005NY 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 one model of airplane, as modified by Honeywell. It is not a rule of 
general applicability and affects only the applicant.

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 Bombardier Model BD-100-1A10 
airplane, as modified by Honeywell, for electronic system security 
protection from unauthorized internal access.
    1. The applicant must ensure that the design provides isolation 
from, or airplane electronic system security protection against, access 
by unauthorized sources internal to the airplane. The design must 
prevent inadvertent and malicious changes to, and all adverse impacts 
upon, airplane equipment, systems, networks, or other assets required 
for safe flight and operations.
    2. The applicant must establish appropriate procedures to allow the 
operator to ensure that continued airworthiness of the airplane is 
maintained, including all post type certification modifications that 
may have an impact on the approved electronic system security 
safeguards.

    Issued in Kansas City, Missouri, on October 25, 2021.
Patrick R. Mullen,
Manager, Technical Innovation Policy Branch, Policy and Innovation 
Division, Aircraft Certification Service.
[FR Doc. 2021-23553 Filed 10-28-21; 8:45 am]
BILLING CODE 4910-13-P