Staging copy. The live site is at https://staging.data.eflight.com.
eFlight RegistryFAA data, updated daily
Registered aircraft · FAA record as of September 25, 2026
N55AT

Routt SEMINOLE RS-1

Valid Montana

N55AT is a Routt SEMINOLE RS-1, a fixed-wing airplane with one motor with a piston engine. It has 1 seat. It is registered to August Aero LLC, an LLC in Kalispell, Montana. The registration is valid: it was issued on May 8, 2020 and expires on May 31, 2027. It holds an experimental airworthiness certificate for amateur built, dated March 16, 1979.

Aircraft

Maker
Routt
Model
SEMINOLE RS-1
Serial number
001
Type
Fixed-wing, single engine
Power
Piston (reciprocating), 1 motor · Lycoming 0-290 SERIES · 140 hp
Seats
1
Year built
Not given
Cruising speed
85 mph
Transponder code
A6FD24 (octal 51576444)

Registration

Status
Valid registration
Certificate issued
May 8, 2020
Expires
May 31, 2027
Last FAA action
January 22, 2023
Airworthiness
Experimental · Amateur built · March 16, 1979
FAA region
Northwest Mountain
FAA record id
00733395

Owner as the FAA publishes it

Name
August Aero LLC
Type
LLC
Address
1001 S Main St Ste 600
Kalispell, MT 59901-5635

Owners can ask the FAA to withhold their name and address from public files. When they do, those fields are blank here as well. How that works.

Documents on file 0

No bills of sale, loans or other documents are indexed against this tail number.

Source: FAA Civil Aviation Registry, Releasable Aircraft Database, September 25, 2026. See this record on the FAA site · This record as data