N6858C - 1978 Cessna 421C Aircraft Registration

C421

1978 CESSNA 421C

Aircraft Description

N6858C is a 1978 Cessna 421C, a twin-engine reciprocating (piston) aircraft registered to Sns Air LLC in Billings, MT. This aircraft holds a standard airworthiness certificate issued by the Federal Aviation Administration on March 10, 1978. The registration certificate was issued on August 3, 2016. The registration is set to expire on August 31, 2029. Powered by a Cont Motor GTSI0-520-F-K engine producing 435 horsepower, N6858C is. The aircraft's Mode S transponder code is A9193D (hex), used for ADS-B identification and flight tracking. N6858C was last tracked by AviatorDB near Billings Logan International Airport (KBIL) on March 19, 2026. The FAA registry record for N6858C was last updated on August 25, 2023. 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 N6858C. 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
1978
Manufacturer
CESSNA
Model
421C
Type Aircraft
Fixed Wing Multi Engine
ICAO Type Code
C421421 Executive Commuter
Cruise Speed
90 mph
Weight Class
Up to 12,500 lbs
Airworthiness Date
March 10, 1978
Classification
Standard Normal Category
Type Registration
LLC
Status
Valid Registration
Cert Issue Date
August 3, 2016

Registered Owner

Name
SNS AIR LLC
Address
3262 AVENUE F
City
BILLINGS
State / Zip Code
Montana59102-6517
Country
United States

Powerplant & Avionics

Engine Type
Reciprocating
Number of Engines
2
Engine Manufacturer
CONT MOTOR
Engine Model
GTSI0-520-F-K
Horsepower
435 HP
Mode S Code (Oct)
52214475
Mode S Code (Hex)
A9193D

Additional Details

Registration
N6858C
Serial Number
421C0481
Number of Engines
2
Number of Seats
8
Expiration Date
August 31, 2029
Last Action Date
August 25, 2023
Last Update Date
January 19, 2026
Unique ID
00060127

Last Known Position

Date
March 19, 2026 (UTC 03:54:09)
Airport
Latitude
45.804749
Longitude
-108.526165

Data Source

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

Last updated: 2026-04-01 01:32:20 UTC