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1973 Cessna 421BMulti-Engine Piston Aircraft • Caldwell, ID, USA

This 1973 Cessna 421B (N477MG) presents as a well-equipped pressurized twin with recent maintenance and avionics upgrades. The airframe shows 8,881 total hours and features two factory-remanned Teledyne Continental GTSIO-520-C-C-H engines with 520 hours since factory remanufacture, converted to -C-C-H configuration in December 2024 with freshly overhauled magnetos. Both McCauley props have 807 hours since overhaul and feature electrothermal deice capability. The aircraft boasts a comprehensive Garmin panel including G600 TXi, GNS 530W WAAS, GTX 345 ADS-B In/Out, and an S-Tec 3100 autopilot with flight director and FIKI option.

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Year: 1973

Make: Cessna

Series: 421

Model: 421B

Tail #: N477MG

Serial #: 421B-0477

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Specifications

Category: Multi-Engine Piston

Intended Use: Business, Passenger

Flight Rules: IFR

Useful Load: 2,299.4 lbs

Seats: 7

Hours, Logs & Inspections

Total Time: 8,881 hrs

Engine 1 Time: 520 hrs

Engine 2 Time: 520 hrs

Prop 1 Time: 807 hrs (SPOH)

Prop 2 Time: 807 hrs (SPOH)

Logbook Status: All original and complete airframe and engine logbooks. Propeller logbooks start with overhauls at 10/12/2008

Inspection Status: Annual inspection due by 04/01/2026. IFR recertification due by 06/30/2027. ELT battery replacement next due by 02/28/2026. Oxygen cylinder hydrostatic test due 11/30/2026.

Avionics

GPS

Garmin GNS 530W - GNS WAAS GPS/Nav/Com

Comms

Garmin GNC 255A - GNC Nav/Com

S-Tec 3100 - autopilot/flight system with trim module, altitude hold, alerter, yaw damper and FIKI option kit

Audio

Garmin GMA 345 - GMA Bluetooth audio panel with 3LMB

Traffic

Garmin GTX 345 - GTX ADS-B In/Out

ADS-B Out

Garmin GTX 330ES - GTX Mode ES extended squitter transponder

PFD

Garmin G600 TXi - system

EMS/EIS

JPI EDM 790 - JPI EDM color engine analyzer

ADS-B In

Garmin GTX 345 - GTX ADS-B In/Out

Additional Equipment

Ice Protection

S-Tec 3100 autopilot/flight director system with FIKI option kit

Air Conditioning

J. B. Systems freon air conditioning system installed 10/12/1973 per STC A7CE

Lighting

Whelen LED landing, taxi lights installed 07/07/2022. Whelen LED wingtip, lower fuselage, tail cone and top rudder strobe, nav and anti-collision lights installed 04/22/2022

Vortex Generators

Micro Aerodynamics wing and rudder vortex generators and left and right engine strakes installed 03/16/2023 per STC SA00514SE

Deicing System

Surface deicing boots (condition 7 out of 10) and hot props

Pressurization

Pressurization system door seals and ducts replaced, dump, outflow and safety valves serviced 07/14/2023

Oxygen System

Oxygen cylinder hydrostatic test due 11/30/2026

Flight Into Known Icing

FIKI equipped

Interior & Exterior

Interior Rating: 7/10

Interior Year: 2015

Paint Rating: 6/10

Paint Year: 2015

Interior Notes: Interior refurbished in 2015. Beige leather headliner, window trim, and side panels. Fully articulating pilot and copilot beige leather seats with sheepskin inserts. Four place club beige leather seats with headrests. Aft cabin beige leather belted lav seat. Right and left side cabin stowable dark wood executive writing tables with dual cup holders. Dark beige tweed floor carpeting with tweed carpeting runners.