# N644AK — ROBINSON HELICOPTER COMPANY R44 II
> **2004** Rotorcraft · Reciprocating · Owner: MD AG SERVICES LLC · STERLING CITY, TX
## Aircraft
- **N-Number:** N644AK
- **Serial Number:** 10364
- **Manufacturer:** ROBINSON HELICOPTER COMPANY
- **Model:** R44 II
- **Year manufactured:** 2004
- **Type:** Rotorcraft
- **Engine type:** Reciprocating (01 engines)
- **Seats:** 004
- **Weight class:** CLASS 1
- **Mode S code (hex):** `A87421`
## Owner
- **Name:** MD AG SERVICES LLC
- **Type of registrant:** LLC
- **Location:** STERLING CITY, TX 769510694, US
## Registration
- **Status:** Valid
- **Certificate issued:** 2024-06-11
- **Last action:** 2024-06-11
- **Expiration:** 2031-06-30
## Source
- [FAA Aircraft Inquiry](https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=644AK)
- [ADS-B Exchange live tracking](https://globe.adsbexchange.com/?icao=a87421)
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