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Electric and sustainable aircraft · FAA record as of October 23, 2026Bye Aerospace EFLYER 2 MODEL 10
N400EF is a Bye Aerospace EFLYER 2 MODEL 10, a fixed-wing airplane with one motor powered by electric motors, built in 2026. It has 2 seats. It is registered to Bye Aerospace INC, a corporation in Englewood, Colorado. The registration is valid: it was issued on June 26, 2026 and expires on June 30, 2033. It holds an experimental airworthiness certificate for research and development, dated September 8, 2026.
Bye Aerospace: eFlyer trainer, Denver, Colorado
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Flight history: where it flew in the last seven days · follow it on the live map
Aircraft
- Maker
- Bye Aerospace (United States)FAA spelling: BYE AEROSPACE INC
- Model
- EFLYER 2 MODEL 10
- Serial number
- 0001
- Type
- Fixed-wing, single engineFAA type of aircraft code 4 (the FAA's broad category for the airframe). Every aircraft with this code · All codes
- Power
- ElectricFAA type of engine code 10 (what powers it, as the FAA classes engines). Every aircraft with this code · All codes, 1 motor
- Seats
- 2
- Year built
- 2026
- Transponder code
- A4AD0B (octal 51126413)
Registration
- Status
- Valid registrationFAA registration status code V (whether the registration certificate is in force). Every aircraft with this code · All codes
- Certificate issued
- June 26, 2026
- Expires
- June 30, 2033
- Last FAA action
- June 26, 2026
- Airworthiness
- ExperimentalFAA airworthiness class code 4 (the kind of airworthiness certificate it flies under and what it is approved for). Every aircraft with this code · All codes · Research and developmentFAA certificate purpose code 1 (the kind of airworthiness certificate it flies under and what it is approved for). All codes · September 8, 2026
- FAA region
- Northwest MountainFAA region code S (the FAA regional office that handles the record). All codes
- FAA record id
- 01549424
Owner as the FAA publishes it
- Name
- Bye Aerospace INC
- Type
- CorporationFAA type of owner code 3 (who holds the registration: a person, a company, a trust or a government body). Every aircraft with this code · All codes
- Address
- 7395 S Peoria St Ste 206
Englewood, CO 80112-4158
Owners can ask the FAA to withhold their name and address from public files. When they do, those fields are blank here as well. How that works.
Documents on file 0
No bills of sale, loans or other documents are indexed against this tail number.
Earlier use of this number 1
Connections how N400EF links to the rest of the register
- Bye Aerospace 2 aircraft on the register
- Bye Aerospace INC 1 aircraft registered to this organisation
- Englewood, CO 150 aircraft registered in this town
- Colorado 7,454 aircraft registered
The whole map of how records connect · these connections as data: /graph/aircraft/N400EF.json.
Records check free · 1 to understand · 4 clear
The public federal record on N400EF, read the way a buyer, lender or insurer reads it: FAA registration, prior tail numbers keyed on the serial number, reuse of the tail number, recent registry filings, and the NTSB accident record under this and every earlier registration.
Valid registration to Bye Aerospace INC, a corporation, certificate issued June 26, 2026, expires June 30, 2033. No fractional interest recorded. [1]
Experimental certificate for research and development, dated September 8, 2026, consistent with the 2026 manufacture year. [1]
No earlier tail number is recorded against serial 0001 for this model in the deregistered file. [2]
N400EF was previously assigned to 1 other aircraft: Gates Learjet Corp. 35A (serial 561, cancelled July 13, 2005). Histories keyed to the tail number alone can mix aircraft up; this check keys on the serial number. [2]
No bills of sale, loans or releases have reached the registry in recent weeks. The index covers only recent filings; older liens are in the records file. [3]
No NTSB investigation records located under N400EF. CLEAR means the query ran and returned nothing, not that nothing ever happened. [4]
These live in the FAA aircraft records file (every document ever filed against the aircraft) and, for larger aircraft, the International Registry. Part of the full report.
AD compliance against the logbooks and flight-activity reconciliation are researched layers of the full report.
- FAA Releasable Aircraft Database, master file, file of October 23, 2026. registry.faa.gov/
- FAA deregistered aircraft file (part of the same download), file of October 23, 2026. registry.faa.gov/
- FAA document index: registry documents received in recent weeks, file of October 23, 2026. registry.faa.gov/
- NTSB aviation accident database (CAROL), records through September 30, 2026. data.ntsb.gov/carol-main-public/basic-search
This automated check reads the public federal record. Nothing here is a legal opinion, an appraisal or a statement about the aircraft's condition; a CLEAR line is a statement about the searched record, not the aircraft.
Source: FAA Civil Aviation Registry, Releasable Aircraft Database, October 23, 2026. See this record on the FAA site · This record as data