N644GD - 1993 Duda W Gregory SH-2F Aircraft Registration

H2

1993 Duda W Gregory SH-2F

Aircraft Description

N644GD is a 1993 Duda W Gregory SH-2F, a single-engine reciprocating (piston) aircraft registered to Duda W Gregory in Grass Valley, CA. This aircraft holds a experimental airworthiness certificate issued by the Federal Aviation Administration on November 21, 2000. The registration certificate was issued on September 9, 1993. The registration is set to expire on April 30, 2028. Powered by a Lycoming 0-320 SERIES engine producing 180 horsepower, N644GD is. The aircraft's Mode S transponder code is A874B1 (hex), used for ADS-B identification and flight tracking. N644GD was last tracked by AviatorDB at coordinates 39.1045, -121.0600 on May 16, 2026. The FAA registry record for N644GD was last updated on May 5, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

Duda W Gregory is an aircraft manufacturer with aircraft registered in the FAA database tracked by AviatorDB. AviatorDB tracks 1 Duda W Gregory aircraft currently registered in the FAA database, including the SH-2F model.

AviatorDB has found no NTSB accident or incident reports involving N644GD. AviatorDB cross-references all FAA registration data with NTSB accident and incident reports, providing a comprehensive safety overview for every registered aircraft in the United States.

Model Year
1993
Manufacturer
Duda W Gregory
Model
SH-2F
Type Aircraft
Fixed Wing Single Engine
ICAO Type Code
H2SH-2 Seasprite
Weight Class
Up to 12,500 lbs
Airworthiness Date
November 21, 2000
Classification
Experimental 2 Category
Type Registration
Co-Owned
Status
Valid Registration
Cert Issue Date
September 9, 1993

Registered Owner

Name
DUDA W GREGORY
Address
18855 SARGENT SKYWAY
City
GRASS VALLEY
State / Zip Code
California95949
Country
United States

Powerplant & Avionics

Engine Type
Reciprocating
Number of Engines
1
Engine Manufacturer
LYCOMING
Engine Model
0-320 SERIES
Horsepower
180 HP
Mode S Code (Oct)
52072261
Mode S Code (Hex)
A874B1

Additional Details

Registration
N644GD
Serial Number
644
Number of Engines
1
Number of Seats
2
Expiration Date
April 30, 2028
Last Action Date
May 5, 2023
Last Update Date
January 19, 2026
Unique ID
00675171

Last Known Position

Date
May 16, 2026 (UTC 22:41:02)
Airport
Latitude
39.104507
Longitude
-121.060021

Data Source

Data provided by the US Federal Aviation Administration. View on FAA.gov

Last updated: 2026-08-15 01:32:20 UTC