Base
RuleOpen for Comment2026-122732026-06-18

Special Conditions: Honeywell Aerospace US LLC, Dassault Aviation Model Falcon 900EX Airplane; Electronic System Security Protection From Unauthorized Internal Access

Transportation Department, Federal Aviation Administration

Abstract

These special conditions are issued for the Dassault Aviation (Dassault) Model Falcon 900EX airplane. This airplane, as modified by Honeywell Aerospace US LLC (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 digital system that contains a wireless and hardwired network with hosted application functionality that allows access, from sources internal to the airplane, to the airplane's internal electronic components. 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.

Action & Dates

Action
Final special conditions; request for comments.
Dates
This action is effective on Honeywell International Inc. on June 18, 2026. Send comments on or before August 3, 2026.
Effective Date
2026-06-18

CFR References

Topics

AircraftAviation safetyReporting and recordkeeping requirements

Public Comment

Comments Close
2026-08-03 — Open for comment

Document Excerpt

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Transportation Federal Aviation Administration 14 CFR Part 25 [Docket No. FAA-2026-4820; Special Conditions No. 25-893-SC] ( printed page 36747) AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final special conditions; request for comments. SUMMARY: These special conditions are issued for the Dassault Aviation (Dassault) Model Falcon 900EX airplane. This airplane, as modified by Honeywell Aerospace US LLC (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 digital system that contains a wireless and hardwired network with hosted application functionality that allows access, from sources internal to the airplane, to the airplane's internal electronic components. 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 International Inc. on June 18, 2026. Send comments on or before August 3, 2026. ADDRESSES: Send comments identified by Docket No. FAA-2026-4820 using any of the following methods: Federal eRegulations Portal: Go to www.regulations.gov and follow the online in

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Full Document

Citation: 91 FR 36747