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1978 Cessna 421CMulti-Engine Piston Aircraft • Billings, MT, USA

This 1978 Cessna 421C Golden Eagle, registration N421MD, presents a well-equipped and recently maintained pressurized twin with significant upgrades. The airframe has a total time of 7,304 hours and is configured for eight belted passengers with a lavatory, privacy curtain, and a rear refreshment center. Its useful load is 2,285 lbs. The aircraft is in a strong maintenance position with an annual inspection completed in April 2025, and its engines and propellers are notably fresh. Both Continental GTSIO-520 engines (models L2B and L1B) were overhauled and installed as new in 2020, each showing 537 hours since overhaul with 1,063 hours...

Year
1978
Make
Cessna
Series
421 Golden Eagle
Model
421C
Tail #
N421MD
Serial #
421C0516

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Specifications

Category
Multi-Engine Piston
Intended Use
Business, Passenger
Flight Rules
IFR
Useful Load
2,285 lbs
Seats
8

Hours, Logs & Inspections

Total Time
7,304 hrs
Engine 1 Time
537 hrs
Engine 2 Time
537 hrs
Prop 1 Time
537.1 hrs (SNEW)
Prop 2 Time
537.1 hrs (SNEW)
Logbook Status
Complete Logs
Inspection Status
Annual Completed April 2025 F.A.R. 91.411 & F.A.R. 91.413 C/w March 2024 ELT Battery Pack Due Replacement June 2027 New O2 Bottle Feb 2022 O2 Bottle Hydrostatically Tested 4/ 2025-next Due April 2028 Nitrogen Gear Blowdown Bottle O/H + Hydro Test Feb 2022 LH Nacelle Fire Extinguisher Bottle Hydro Test March 2023 RH Nacelle Fire Extinguisher Bottle Hydro Test March 2023

Avionics

GPS

Garmin GTN 750 - GTN GTN

PFD

Garmin GDU 1060 - TXI

MFD

Garmin G600 TXI

AP

Garmin GFC 600

Weather

Garmin GWX 70 - Weather Radar W/ 12" Array

Traffic

BF Goodrich SKY 497 - BF TAS Blended With ADS-B TIS-B, Active Traffic

ADSB

Garmin GTX 345R

ADS-B In

Garmin GDL 69A - ADS-B Equipped, FIS And Sirius/XM Music

Comms

Garmin GMA 35c - W/ BT For Cell Phone Use, Radar Altimeter, Remote DME

Audio

Garmin GMA 35c - W/ BT For Cell Phone Use By Crew/Passengers

EMS

L-3 EIS 500 - Engine Monitor, Standby EFIS W/ ADAHRS

Additional Equipment

Oxygen System

Oxygen System, New O2 Bottle Feb 2022

Air Conditioning

Keith Air Conditioning

Exhaust System

Modified With GAMI Fuel Injectors

Spoilers

PowerPak Wing Spoilers

Vortex Generators

ATS Vortex Generators

Lighting

All Whelen External LED Lighting

Windows

Tinted Cabin Windows, FIKI DC Heated Windshield

Seating

Eight Belted Seats, Lav W/ Privacy Curtain And Aft Full Refreshment Cabinet

Chronometer

MCICo MD 93 - B&D Cabin Display And Digital W/ USB Charge

Power Ports

USB Charge Ports For Crew And At Both Cabin Entertainment Tables

Alternators

PlanePower High Capacity Alternators/ACUs

Sunvisors

Rosen Sunvisors

Control Yokes

Avion Padded Control Yokes With Revised O/H Maplight Rheostats

Fire Extinguisher System

Optional Factory Fire Extinguisher System

ELT

Ack 406 - ELT W/ GPS Position

Prop Synchrophaser

Prop Synchrophaser Is A RAM Aircraft Upgrade

Gross Weight Increase

RAM Aircraft Gross Weight Increase

Aft Body Strakes

Dual Aft Body Strakes

Wheel Speedcaps

Main Gear Wheel Speedcaps

Interior & Exterior

Interior Notes
Interior Refurbished-date In Logs. Eight Belted Seats (including Lav/potty Seat And Aft Jump Seat); Lav W/ Privacy Curtain And Aft Full Refreshment Cabinet. Working B&D Cabin Display And Chronometer; USB Charge Ports For Crew And At Both Cabin Entertainment Tables. All Rebuilt ELs For Cockpit Panels, Custom Colored To Match Cream Instrument Panels.
Exterior Notes
Aircraft Has Been Repainted; See Photos For Paint Scheme. All External LEDs.

Engine & Propeller

Engine Type
Piston
Engine Count
2
Engine Make
Continental
Engine Model
GTSIO-520
Engine Power
375 HP
Propeller Model
MTV-16-1-E

Asking Price

$650,000

Aircraft Location

Billings, MT, USA

Listing Details

Used
For Sale

Price History

Mar 13, 2026: $650,000(-$35,000) - controller

Dec 10, 2025: $685,000(-$40,000) - controller

Nov 19, 2025: $725,000 - controller

Contact Seller

First Seen: Nov 19, 2025

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Asking Price

$650,000