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Who Owns This Plane?

N421B

2019 Textron Aviation Inc B300C

Fixed-wing, multi-engine · serial FM-81

Valid registration

Registered with the FAA until Jul 31, 2028.

Registered owner

Department of Homeland Security

Owner type: Government
Address: 1300 Pennsylvania Ave NW #6.4a, Washington, DC 20229
Fleet: 122 aircraft registered to this owner

Aircraft

Make and model: Textron Aviation Inc B300C
Year built: 2019
Serial number: FM-81
Type: Fixed-wing, multi-engine · Land
Engines: 2 × Turboprop · P&w Canada PT6A-60A · 1,050 hp
Seats: 18
Weight class: 12,500 to 19,999 lb
Certification: Type certificated · Standard airworthiness (issued Sep 22, 2019)
Mode S code: A4FF6F (the transponder's ICAO address, used by ADS-B flight trackers)
Registered since: Jul 10, 2021 · last FAA action Sep 9, 2024

Past registrations of N421B

N-numbers are reused. Each line is an earlier registration, ending on the date the FAA canceled it.

Oct 6, 2014 1948 Beech 35 · serial D-1428 Griffith Anthony W · Rockdale, TX

What a Beechcraft King Air 200/350 looks likePhoto of a Beechcraft King Air 200/350, not this aircraft: Gordon Elias, OGL v1.0, via Wikimedia Commons

Check the official record

This page mirrors the FAA's public registry file dated Oct 30, 2026. The FAA's own N-number inquiry is the official record, with the full owner address and documents.

Where is it now?

The registry doesn't show where an aircraft is flying. Flight trackers do, by tail number or Mode S code A4FF6F: FlightAware or ADS-B Exchange. Some owners block tracking through the FAA's privacy programs.

Something wrong?

Owners update their registration with the FAA Aircraft Registry; changes appear here the day after the FAA publishes them. Email admin@whoownsthisplane.com about how this site shows a record.