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Registered aircraft · FAA record as of October 26, 2026Flight Research Inc FRI H58C
N173FR is a Flight Research Inc FRI H58C, a rotorcraft with turboshaft engines (a helicopter or multicopter), built in 2000. It has 4 seats. It is registered to National Test Pilot School, a corporation in Mojave, California. The registration is valid: it was issued on May 25, 2023 and expires on May 31, 2030. It holds an experimental airworthiness certificate for research and development, dated March 31, 2018.
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Flight history: where it flew in the last seven days · follow it on the live map
Aircraft
- Maker
- Flight Research Inc
- Model
- FRI H58C
- Serial number
- FRI 004
- Type
- RotorcraftFAA type of aircraft code 6 (the FAA's broad category for the airframe). Every aircraft with this code · All codes
- Power
- TurboshaftFAA type of engine code 3 (what powers it, as the FAA classes engines). Every aircraft with this code · All codes, 1 motor · Allison T63 SERIES · 250 hp
- Seats
- 4
- Year built
- 2000
- Transponder code
- A124DF (octal 50222337)
Registration
- Status
- Valid registrationFAA registration status code V (whether the registration certificate is in force). Every aircraft with this code · All codes
- Certificate issued
- May 25, 2023
- Expires
- May 31, 2030
- Last FAA action
- May 25, 2023
- 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 · March 31, 2018
- FAA region
- Western-PacificFAA region code 4 (the FAA regional office that handles the record). All codes
- FAA record id
- 00327081
Owner as the FAA publishes it
- Name
- National Test Pilot School (flight school: its whole fleet and safety record)
- 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
- 1030 Flight Line Bldg 72
Mojave, CA 93501-1679
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.
Connections how N173FR links to the rest of the register
- Flight Research Inc 2 aircraft on the register
- Allison (Rolls-Royce) T63 series 46 aircraft with this engine series · 250 hp
- National Test Pilot School 35 aircraft in the fleet
- Mojave, CA 108 aircraft registered in this town
- Mojave Air & Space Port/Rutan Field · MHV
- California 27,642 aircraft registered
- Failure reports on the Allison (Rolls-Royce) T63 series 1 reports since 1995
The whole map of how records connect · these connections as data: /graph/aircraft/N173FR.json.
Records check free · 1 to understand · 4 clear
The public federal record on N173FR, 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 National Test Pilot School, a corporation, certificate issued May 25, 2023, expires May 31, 2030. No fractional interest recorded. [1]
The airworthiness certificate on file is dated March 31, 2018, 18 years after the 2000 manufacture year. A re-issued certificate commonly follows export and re-import, a rebuild, or a return to the register after cancellation. The cause is documented in the FAA aircraft records file, which the full report obtains. [1]
No earlier tail number is recorded against serial FRI 004 for this model in the deregistered file. [2]
No other airframe has carried N173FR according to the deregistered file. [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 N173FR. 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 26, 2026. registry.faa.gov/
- FAA deregistered aircraft file (part of the same download), file of October 26, 2026. registry.faa.gov/
- FAA document index: registry documents received in recent weeks, file of October 26, 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 26, 2026. See this record on the FAA site · This record as data