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Registered aircraft · FAA record as of September 25, 2026
N644AK

Robinson Helicopter R44 II

Valid Texas

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
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

2004-01-16Robinson Helicopter R44 · exported to New Zealand · Valid registration

Source: FAA Civil Aviation Registry, Releasable Aircraft Database, September 25, 2026. See this record on the FAA site · This record as data