Robinson Helicopter R44 II
N484AK is a Robinson Helicopter R44 II, a rotorcraft with a piston engine (a helicopter or multicopter), built in 2007. It has 4 seats. It is registered to United Therapeutics CORP, a corporation in Silver Spring, Maryland. The registration is valid: it was issued on June 19, 2018 and expires on June 30, 2028. It holds an experimental airworthiness certificate for unmanned aircraft, research and development, dated August 2, 2018.
Aircraft
- Maker
- Robinson Helicopter (United States)FAA spelling: ROBINSON HELICOPTER COMPANY
- Model
- R44 II · all R44 IIs and related versions
- Serial number
- 11638
- Type
- Rotorcraft
- Power
- Piston (reciprocating), 1 motor
- Seats
- 4
- Year built
- 2007
- Transponder code
- A5F77F (octal 51373577)
Registration
- Status
- Valid registration
- Certificate issued
- June 19, 2018
- Expires
- June 30, 2028
- Last FAA action
- August 6, 2025
- Airworthiness
- Experimental · Unmanned aircraft, research and development · August 2, 2018
- FAA region
- Eastern
- FAA record id
- 01270648
Owner as the FAA publishes it
- Name
- United Therapeutics CORP
- Type
- Corporation
- Address
- 1110 Spring St
Silver Spring, MD 20910-4019
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.
Records check free · 1 to understand · 4 clear
The public federal record on N484AK, 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 United Therapeutics CORP, a corporation, certificate issued June 19, 2018, expires June 30, 2028. No fractional interest recorded. [1]
The airworthiness certificate on file is dated August 2, 2018, 11 years after the 2007 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 11638 for this model in the deregistered file. [2]
No other airframe has carried N484AK 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 N484AK. 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 2, 2026. registry.faa.gov/
- FAA deregistered aircraft file (part of the same download), file of October 2, 2026. registry.faa.gov/
- FAA document index: registry documents received in recent weeks, file of October 2, 2026. registry.faa.gov/
- NTSB aviation accident database (CAROL), records through August 27, 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 2, 2026. See this record on the FAA site · This record as data