N503ST

1959 Cessna 180B

Fixed-wing, single engine · serial 50583

Valid registration

Registered with the FAA until Apr 30, 2029.

Registered owner

N503st LLC

Owner type: LLC
Address: 414 W 5th St, Royal Oak, MI 48067

Aircraft

Make and model: Cessna 180B
Year built: 1959
Serial number: 50583
Type: Fixed-wing, single engine · Land
Engines: 1 × Piston · Cont Motor O-470 SERIES · 230 hp
Seats: 4
Weight class: Up to 12,499 lb
Certification: Type certificated · Standard airworthiness (issued Jul 21, 2004)
Mode S code: A646B7 (the transponder's ICAO address, used by ADS-B flight trackers)
Registered since: Apr 9, 2022 · last FAA action Jul 28, 2023

What a Cessna 180/185 looks likePhoto of a Cessna 180/185, not this aircraft: Tomás Del Coro from Las Vegas, Nevada, USA, CC BY-SA 2.0, 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 A646B7: 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.