N2121T - Gulfstream American CORP AA-5B Aircraft Registration

G150

GULFSTREAM AMERICAN CORP AA-5B

Aircraft Description

N2121T is a Gulfstream American Corp AA-5B, a single-engine reciprocating (piston) aircraft registered to Siebols Johan in Friendswood, TX. This aircraft holds a standard airworthiness certificate issued by the Federal Aviation Administration on December 11, 1978. The registration certificate was issued on June 9, 1995. The registration is set to expire on July 31, 2027. Powered by a Lycoming O&VO-360 SER engine producing 180 horsepower, N2121T is. The aircraft's Mode S transponder code is A1C37D (hex), used for ADS-B identification and flight tracking. The FAA registry record for N2121T was last updated on March 4, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

Gulfstream Aerospace, a subsidiary of General Dynamics based in Savannah, Georgia, manufactures some of the world's most advanced business jets. From the G280 to the flagship G700, Gulfstream aircraft are known for their range, speed, and cabin luxury. AviatorDB tracks 315 Gulfstream American Corp aircraft currently registered in the FAA database, including the AA-5B model.

AviatorDB has found no NTSB accident or incident reports involving N2121T. 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
Manufacturer
GULFSTREAM AMERICAN CORP
Model
AA-5B
Type Aircraft
Fixed Wing Single Engine
ICAO Type Code
G150Gulfstream G150
Weight Class
Up to 12,500 lbs
Airworthiness Date
December 11, 1978
Classification
Standard Normal Category
Type Registration
Individual
Status
Valid Registration
Cert Issue Date
June 9, 1995

Registered Owner

Name
SIEBOLS JOHAN
Address
205 HOLLY SPRING DR
City
FRIENDSWOOD
State / Zip Code
Texas77546-4630
Country
United States

Powerplant & Avionics

Engine Type
Reciprocating
Number of Engines
1
Engine Manufacturer
LYCOMING
Engine Model
O&VO-360 SER
Horsepower
180 HP
Mode S Code (Oct)
50341575
Mode S Code (Hex)
A1C37D

Additional Details

Registration
N2121T
Serial Number
AA5B-1031
Number of Engines
1
Number of Seats
4
Expiration Date
July 31, 2027
Last Action Date
March 4, 2023
Last Update Date
January 19, 2026
Unique ID
00111302

Last Known Position

Date
August 27, 2025 (UTC 10:07:12)
Airport
Latitude
51.570562
Longitude
0.693627

Data Source

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

Last updated: 2026-05-01 01:32:20 UTC