Robinson Helicopter R44 II
N644AK is a Robinson Helicopter R44 II, a rotorcraft with a piston engine (a helicopter or multicopter), built in 2004. It has 4 seats. It is registered to MD AG Services LLC, an LLC in Sterling City, Texas. The registration is valid: it was issued on June 11, 2024 and expires on June 30, 2031. It holds a standard airworthiness certificate for normal, dated May 6, 2004.
Aircraft
- Maker
- Robinson Helicopter (United States)FAA spelling: ROBINSON HELICOPTER COMPANY
- Model
- R44 II · all R44 IIs and related versions
- Serial number
- 10364
- Type
- Rotorcraft
- Power
- Piston (reciprocating), 1 motor · Lycoming IO-540 SER · 300 hp
- Seats
- 4
- Year built
- 2004
- Transponder code
- A87421 (octal 52072041)
Registration
- Status
- Valid registration
- Certificate issued
- June 11, 2024
- Expires
- June 30, 2031
- Last FAA action
- June 11, 2024
- Airworthiness
- Standard · Normal · May 6, 2004
- FAA region
- Southwestern
- FAA record id
- 00098569
Owner as the FAA publishes it
- Name
- MD AG Services LLC
- Type
- LLC
- Address
- PO Box 694
Sterling City, TX 76951-0694
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
Records check free · 1 to understand · 4 clear
The public federal record on N644AK, 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 MD AG Services LLC, an LLC, certificate issued June 11, 2024, expires June 30, 2031. No fractional interest recorded. [1]
Standard certificate for normal, dated May 6, 2004, consistent with the 2004 manufacture year. [1]
No earlier tail number is recorded against serial 10364 for this model in the deregistered file. [2]
N644AK was previously assigned to 1 other aircraft: Robinson Helicopter R44 (serial 1081, cancelled January 16, 2004). 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 N644AK. 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