N421BX - Cessna 421B Aircraft Registration

C421

CESSNA 421B

Aircraft Description

N421BX is a Cessna 421B, a twin-engine reciprocating (piston) aircraft registered to Crystal Air LLC in Brighton, MA. This aircraft holds a standard airworthiness certificate issued by the Federal Aviation Administration on August 7, 2006. The registration certificate was issued on September 19, 2025. The registration is set to expire on September 30, 2032. Powered by a Cont Motor GTSIO-520-H engine producing 375 horsepower, N421BX is. The aircraft's Mode S transponder code is A4FF85 (hex), used for ADS-B identification and flight tracking. The FAA registry record for N421BX was last updated on September 19, 2025. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

The Cessna 421 Golden Eagle was a pressurized twin-engine aircraft that brought high-altitude comfort to the business aviation market at a fraction of turboprop costs. First flown on May 1, 1967, it was a low-wing monoplane powered by two Continental GTSIO-520 turbocharged engines, seating six to eight occupants. With a service ceiling of 30,000 feet and cruise speed of 277 mph, the 421 spanned 43 feet 2 inches with a length of approximately 39 feet. Cessna Aircraft Company manufactured 1,901 examples between 1967 and 1985. AviatorDB tracks 80,556 Cessna aircraft currently registered in the FAA database. The ICAO type designator for this aircraft model is C421.

AviatorDB has found no NTSB accident or incident reports involving N421BX. AviatorDB cross-references all FAA registration data with NTSB accident and incident reports, providing a comprehensive safety overview for every registered aircraft in the United States.

Model Year
Manufacturer
CESSNA
Model
421B
Type Aircraft
Fixed Wing Multi Engine
ICAO Type Code
C421421 Executive Commuter
Cruise Speed
172 mph
Weight Class
Up to 12,500 lbs
Airworthiness Date
August 7, 2006
Classification
Standard Normal Category
Type Registration
LLC
Status
Valid Registration
Cert Issue Date
September 19, 2025

Registered Owner

Name
CRYSTAL AIR LLC
Address
PO BOX 350981
City
BRIGHTON
State / Zip Code
Massachusetts02135-0017
Country
United States

Powerplant & Avionics

Engine Type
Reciprocating
Number of Engines
2
Engine Manufacturer
CONT MOTOR
Engine Model
GTSIO-520-H
Horsepower
375 HP
Mode S Code (Oct)
51177605
Mode S Code (Hex)
A4FF85

Additional Details

Registration
N421BX
Serial Number
421B0391
Number of Engines
2
Number of Seats
8
Expiration Date
September 30, 2032
Last Action Date
September 19, 2025
Last Update Date
January 19, 2026
Unique ID
00272649

Data Source

Data provided by the US Federal Aviation Administration. View on FAA.gov

Last updated: 2026-05-15 01:32:20 UTC