N21SR - Oneill Terrence Z Aircraft Registration

HBLD

Oneill Terrence Z

Aircraft Description

N21SR is a Oneill Terrence Z, a single-engine reciprocating (piston) aircraft registered to Oneill Terrence in Carlyle, IL. The registration certificate was issued on July 21, 1987. The registration is set to expire on October 31, 2027. The aircraft is configured with 4 seats. The aircraft's Mode S transponder code is A1B8C9 (hex), used for ADS-B identification and flight tracking. The FAA registry record for N21SR was last updated on March 24, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

Oneill Terrence is an aircraft manufacturer with aircraft registered in the FAA database tracked by AviatorDB. AviatorDB tracks 1 Oneill Terrence aircraft currently registered in the FAA database, including the Z model.

AviatorDB has found no NTSB accident or incident reports involving N21SR. 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
Oneill Terrence
Model
Z
Type Aircraft
Fixed Wing Single Engine
ICAO Type Code
HBLDExperimental Amateur-Built (one-off / homebuilt)
Weight Class
Up to 12,500 lbs
Airworthiness Date
Classification
Type Registration
Individual
Status
Valid Registration
Cert Issue Date
July 21, 1987

Registered Owner

Name
ONEILL TERRENCE
Address
7659 NIKAU DR
City
NIWOT
State / Zip Code
Colorado80503-8671
Country
United States

Powerplant & Avionics

Engine Type
Reciprocating
Number of Engines
1
Mode S Code (Oct)
50334311
Mode S Code (Hex)
A1B8C9

Additional Details

Registration
N21SR
Serial Number
1
Number of Engines
1
Number of Seats
4
Expiration Date
October 31, 2027
Last Action Date
July 1, 2026
Last Update Date
January 19, 2026
Unique ID
00775580

Data Source

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

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