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
N421RR

Cessna 421

Valid Montana

N421RR is a Cessna 421, a fixed-wing airplane with more than one motor with a piston engine, built in 1968. It has 8 seats. It is registered to Blue Star Aviation LLC, an LLC in Billings, Montana. The registration is valid: it was issued on November 5, 2024 and expires on November 30, 2031. It holds a standard airworthiness certificate for normal, dated April 30, 1997.

Aircraft

Maker
Cessna
Model
421
Serial number
4210085
Type
Fixed-wing, multi-engine
Power
Piston (reciprocating), 2 motors · Cont Motor GTSIO-520-D · 375 hp
Seats
8
Year built
1968
Cruising speed
172 mph
Transponder code
A500DD (octal 51200335)

Registration

Status
Valid registration
Certificate issued
November 5, 2024
Expires
November 30, 2031
Last FAA action
November 5, 2024
Airworthiness
Standard · Normal · April 30, 1997
FAA region
Northwest Mountain
FAA record id
00072457

Owner as the FAA publishes it

Name
Blue Star Aviation LLC
Type
LLC
Address
115 N Broadway Ste 408
Billings, MT 59101

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