N404VB

2015 Robinson Helicopter Co R66

Helicopter · serial 0663

Valid registration

Registered with the FAA until Oct 31, 2028.

Registered owner

Mammoth Sierra LLC

Owner type: LLC
Address: 28961 Sommet Du Monde, Laguna Beach, CA 92651

Aircraft

Make and model: Robinson Helicopter Co R66
Year built: 2015
Serial number: 0663
Type: Helicopter · Land
Engines: 1 × Turboshaft · Rolls-Royc 250-C300/A1 · 300 hp
Seats: 5
Weight class: Up to 12,499 lb
Certification: Type certificated · Standard airworthiness (issued Sep 9, 2015)
Mode S code: A4BD5A (the transponder's ICAO address, used by ADS-B flight trackers)
Registered since: Oct 2, 2015 · last FAA action Jun 16, 2023

What a Robinson R66 looks likePhoto of a Robinson R66, not this aircraft: Alan Wilson, 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 A4BD5A: 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.