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1973 Cessna 421BMulti-Engine Piston Aircraft • Stockton, CA, USA

This 1973 Cessna 421B (N477MG) presents as a well-maintained pressurized twin with recent upgrades and comprehensive maintenance history. With 8,881 total airframe hours, the aircraft features freshly converted GTSIO-520-C-C-H engines from Certified Engines Unlimited in December 2024, each showing only 520 hours since remanufacture with 1,600-hour TBOs remaining. Both McCauley propellers have 807 hours since overhaul with electrothermal deice capability, recently serviced in February 2025. The aircraft boasts a modern Garmin G600 TXi glass cockpit with GNS 530W WAAS GPS, S-Tec 3100 autopilot with flight director, and full ADS-B In/Out...

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 (SOH)

Prop 2 Time: 807 hrs (SOH)

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

Autopilot

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

ADS-B Out

Garmin GTX 345 - GTX ADS-B In/Out

ADS-B In

Garmin GTX 345 - GTX ADS-B In/Out

PFD

Garmin G600 TXi - system

EMS/EIS

JPI EDM 790 - JPI EDM color engine analyzer

Additional Equipment

Pressurized

Oxygen System

Flight Into Known Icing (FIKI)

FIKI equipped

Inadvertent Ice Protection

Air Conditioning

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

Deice Boots

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

Vortex Generators

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

LED 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

Interior & Exterior

Interior Rating: 7/10

Interior Year: 2015

Paint Rating: 6/10

Paint Year: 2015

Interior Notes: Interior refurbished in 2015 • Cabin entryway light • Beige leather headliner • Beige leather window trim • Beige and dark beige leather side panels • Fully articulating pilot and copilot beige leather seats with sheepskin inserts, stowable center armrests, shoulder harnesses and lap belts • Four place club beige leather seats with headrests, stowable center armrests and lap belts • 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 • Cockpit overhead air conditioning vents • Overhead speaker • Cabin overhead individual air conditioning vents and spot lights • Aft cabin cargo/baggage area