N557SM

2007 Robinson Helicopter Company R44 II

Helicopter · serial 11700

Valid registration

Registered with the FAA until Jul 31, 2032.

Registered owner

Acmeflight LLC

Owner type: LLC
Address: 1212 13th St, Santa Rosa, CA 95404

Aircraft

Make and model: Robinson Helicopter Company R44 II
Year built: 2007
Serial number: 11700
Type: Helicopter · Land
Engines: 1 × Piston · Lycoming IO-540-AE1A5 · 260 hp
Seats: 4
Weight class: Up to 12,499 lb
Certification: Type certificated · Standard airworthiness (issued Jun 14, 2007)
Mode S code: A71B08 (the transponder's ICAO address, used by ADS-B flight trackers)
Registered since: Jul 9, 2025 · last FAA action Jul 9, 2025

What a Robinson R44 looks likePhoto of a Robinson R44, not this aircraft: D. Miller, CC BY 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 A71B08: 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.