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Also listed on Trade-A-Plane.com
1973 CESSNA 421B
Starts from the median asking price of 18 comparable Cessna 421B listings ($329,000), then adjusts for:
- Airframe time +2,234 hr vs comps -4.5%
- Engine time -213 hr vs comps +3.0%
- Modern GPS navigator (78% of comps) +3.1%
- Garmin G600 (28% of comps) +14.4%
- Autopilot (83% of comps) +0.5%
- ADS-B (67% of comps) +0.9%
- Market supply: 18 for sale of 224 FAA-registered -1.7%
Shown as a range. An estimate from asking-price comparables and FAA supply data — not an appraisal.
Overview
| Make / Model | Cessna 421B |
|---|---|
| Type | Multi-Engine Piston |
| Airframe time | 8,901 hrs |
| Engine time | 540 SFRM |
| Avionics / flight deck | GARMIN G600 TXI |
| Avionics / GPS | Garmin GNS 530 |
| Avionics / Transponder | Garmin GTX 330ES |
| Avionics / Primary flight display | GARMIN GI 275, GARMIN G600 |
| Avionics / Audio panel | Garmin GMA345 |
| Avionics / GPS / nav | GNS 530W |
| Avionics / Autopilot | S-Tec 3100 |
| ADS-B | Yes |
| Annual | 05/01/2027 |
| Inspection | Annual |
Description
Details: • Registration: N477MG • Serial Number: 421B-0477 • Airframe Time: 8,901 hours total time since new • Price: $329,000 USD • Location: Kissimmee Gateway Airport (KISM), Orlando, FL Specifications: • Wingspan: 41' 9" • Length: 36' 1" • Height: 11' 6" • Gross Weight: 7,450 lbs. • Useful Load: 2,299.4 lbs. actual • Fuel Capacity: 248-gallon capacity (244 gals usable, extended range w/aux tanks)
Modifications
Additional Features: • Overhauled right evaporator blower motor installed 06/25/2024 • New Concord RG24-20 battery installed 05/29/2024 • Cessna Auxiliary Kit AK414-34 rudder gust lock installed 05/07/2024 • SMR Technologies Ice Shield deice boots installed on left and right inboard wings, left and right horizontal stabilizers 05/07/2024 per STC SA02003NY • Overhauled left engine outboard exhaust assembly installed 05/07/2024 • Pressurization system door seals and ducts replaced, dump, outflow and safety valves serviced 07/14/2023 • Windshield heat DC heat module replaced 06/22/2023 • Micro Aerodynamics wing and rudder vortex generators and left and right engine strakes installed 03/16/2023 per STC SA00514SE • BNC Aerospace door snubber installed 03/16/2023 per STC SA2440SW • Pilot storm window replaced 03/16/2023 • Right engine overhauled Hartzell starter installed 09/08/2022 • 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 • Lee Aerospace refurbished cabin windows and installed new right windshield, right cockpit side window, and storm windows 12/17/2021 • Left and right brake discs, pads and shims replaced with new 03/30/2021 • Cessna Service Kit SK414-BE wing rib modification main landing gear side brace installed on left and right wings 02/25/1998 • Cessna Service Kit SK421-119B1 and -119B2 glass D.C. windshield installed 03/17/1989 • Brackett air filter assemblies installed 06/03/1987 per STC SA71GL • J. B. Systems freon air conditioning system installed 10/12/1973 per STC A7CE • FIKI equipped • Heated pilot windshield • Surface deicing boots (condition 7 out of 10) and hot props • Spacious nose baggage compartment left and right side accessible • Aileron, rudder and elevator trim • Alternate static air source • Right side cabin side emergency exit window • Heated pitot static head • Pilot and copilot cockpit storm window • External ground power receptacle • Parking brake
Avionics
• Audio Panel: Garmin GMA 345 Bluetooth audio panel with 3LMB • EFIS: Garmin G600 TXi electronic flight information system • EFI: Garmin GI 275 ADAHRS standby ADI • GPS/Nav/Com: Garmin GNS 530W WAAS GPS/Nav/Com • Nav/Com: Garmin GNC 255A Nav/Com • iPad Mount: Guardian Avionics • Autopilot/FD: S-Tec 3100 autopilot/flight director system with trim module, altitude hold, preselect, alerter, yaw damper and FIKI option kit • Transponder #1: Garmin GTX 345 ADS-B In/Out • Transponder #2: Garmin GTX 330ES Mode ES extended squitter transponder • Encoding Alt.: Aerosonic encoding altimeter • Engine Analyzer: JPI EDM 790 color engine analyzer • ELT: ACK ELT with panel mounted switch and indicator • ICS: GMA 345 with pilot and copilot Bose powered and standard jacks • Hour Meter: Datcon recording hour meter • Aux power: Auxiliary lighter port with two USB power ports • Pilot control yoke with PTT, electric trim, go around, CWS and map light switches • Copilot control yoke PTT and map light switches
Recommended avionics upgrades
A GNS 530 is a drop-in upgrade to the GTN 750Xi — bigger touchscreen, WAAS/LPV, and modern nav/comm/MFD.
See prices & suppliers ›Suggestions are based on the panel described in this listing; verify STC approval for this make/model before any installation.
Service Difficulty Reports (SDRs)
Checking FAA service difficulty reports…
Airworthiness Directives (ADs)
Checking airworthiness directives…
How this aircraft compares
Where this Cessna 421B lands versus other Cessna 421B listings on fyiAero.
Price
56th pct$329k · 56th percentile of 18 listings
Airframe time
95th pct8,901 hours total (TTAF) · 95th percentile of 19 listings
Engine time (Engine 1)
47th pct540 hours since factory reman · 47th percentile of 19 listings
Engine time (Engine 2)
37th pct540 hours since factory reman · 37th percentile of 19 listings
Percentile = share of comparable listings at or below this value. Lower airframe/engine hours are generally fresher; price reflects the asking price only.
General
| Year | 1973 |
|---|---|
| Manufacturer | CESSNA |
| Model | 421B |
| Serial Number | 421B-0477 |
| Registration # | N477MG |
| Condition | Used |
| Based at | ISM |
Airframe
| Total Time | 8,901 |
|---|---|
| Auxiliary Fuel Tank | Yes |
| Complete Logs | Yes |
Engine 1
| Engine 1 Time | 540 SFRM |
|---|---|
| Engine 1 TBO | 1600 |
| Engine 1 Turbocharged | Yes |
Engine 2
| Engine 2 Time | 540 SFRM |
|---|---|
| Engine 2 TBO | 1600 |
| Engine 2 Turbocharged | Yes |
Props
| Prop 1 Time | 827 SOH |
|---|---|
| Prop 2 Time | 827 SOH |
Avionics
| Flight Deck Manufacturer/Model | GARMIN G600 TXI |
|---|---|
| ADS-B Equipped | Yes |
| WAAS | Yes |
| LPV | Yes |
| Yaw Damper | Yes |
| Engine Monitor | Yes |
| Avionics/Radios | • Audio Panel: Garmin GMA 345 Bluetooth audio panel with 3LMB • EFIS: Garmin G600 TXi electronic flight information system • EFI: Garmin GI 275 ADAHRS standby ADI • GPS/Nav/Com: Garmin GNS 530W WAAS GPS/Nav/Com • Nav/Com: Garmin GNC 255A Nav/Com • iPad Mount: Guardian Avionics • Autopilot/FD: S-Tec 3100 autopilot/flight director system with trim module, altitude hold, preselect, alerter, yaw damper and FIKI option kit • Transponder #1: Garmin GTX 345 ADS-B In/Out • Transponder #2: Garmin GTX 330ES Mode ES extended squitter transponder • Encoding Alt.: Aerosonic encoding altimeter • Engine Analyzer: JPI EDM 790 color engine analyzer • ELT: ACK ELT with panel mounted switch and indicator • ICS: GMA 345 with pilot and copilot Bose powered and standard jacks • Hour Meter: Datcon recording hour meter • Aux power: Auxiliary lighter port with two USB power ports • Pilot control yoke with PTT, electric trim, go around, CWS and map light switches • Copilot control yoke PTT and map light switches |
Additional Equipment
| Pressurized | Yes |
|---|---|
| Oxygen System | Yes |
| Flight Into Known Icing (FIKI) | Yes |
| Inadvertent Ice Protection | Yes |
| A/C | Yes |
| Additional Equipment | Additional Features: • Overhauled right evaporator blower motor installed 06/25/2024 • New Concord RG24-20 battery installed 05/29/2024 • Cessna Auxiliary Kit AK414-34 rudder gust lock installed 05/07/2024 • SMR Technologies Ice Shield deice boots installed on left and right inboard wings, left and right horizontal stabilizers 05/07/2024 per STC SA02003NY • Overhauled left engine outboard exhaust assembly installed 05/07/2024 • Pressurization system door seals and ducts replaced, dump, outflow and safety valves serviced 07/14/2023 • Windshield heat DC heat module replaced 06/22/2023 • Micro Aerodynamics wing and rudder vortex generators and left and right engine strakes installed 03/16/2023 per STC SA00514SE • BNC Aerospace door snubber installed 03/16/2023 per STC SA2440SW • Pilot storm window replaced 03/16/2023 • Right engine overhauled Hartzell starter installed 09/08/2022 • 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 • Lee Aerospace refurbished cabin windows and installed new right windshield, right cockpit side window, and storm windows 12/17/2021 • Left and right brake discs, pads and shims replaced with new 03/30/2021 • Cessna Service Kit SK414-BE wing rib modification main landing gear side brace installed on left and right wings 02/25/1998 • Cessna Service Kit SK421-119B1 and -119B2 glass D.C. windshield installed 03/17/1989 • Brackett air filter assemblies installed 06/03/1987 per STC SA71GL • J. B. Systems freon air conditioning system installed 10/12/1973 per STC A7CE • FIKI equipped • Heated pilot windshield • Surface deicing boots (condition 7 out of 10) and hot props • Spacious nose baggage compartment left and right side accessible • Aileron, rudder and elevator trim • Alternate static air source • Right side cabin side emergency exit window • Heated pitot static head • Pilot and copilot cockpit storm window • External ground power receptacle • Parking brake |
Modifications/Conversions
| Vortex Generators | Yes |
|---|
Interior
| Year Interior | 2015 |
|---|---|
| Number of Seats | 7 |
| Lavatory | Yes |
| Configuration | Passenger |
Exterior
| Year Painted | 2015 |
|---|
Inspection Status
| Inspection Status | Inspection: • Annual inspection due by 05/01/2027 • IFR recertification due by 06/30/2027 • ELT battery replacement next due by 06/30/2029 • Oxygen cylinder hydrostatic test due 11/30/2026 Logbooks: • All original and complete airframe and engine logbooks • Propeller logbooks start with overhauls at 10/12/2008 Repairs: • 10/30/2018 prop strike existing engines repaired @ 506.2 SFRM • 10/13/1988 prop strike repairs (non-structural, old engines not on airframe) • 11/01/1986 airframe, engine and prop repairs made by Beegles Aircraft Svc. (see airframe logbook this date) • 01/17/1984 airframe, engine and prop repairs made by Beegles Aircraft Svc. (see airframe logbook this date) |
|---|
Operating costs & specifications — Cessna 421
Typical model-level figures for the Cessna 421 (not this specific airframe).
Performance & dimensions
| Range | 826 nm |
|---|---|
| Cruise speed | 222 kts · 255 mph |
| Takeoff / landing | 2012.0 / 1045.0 |
About this plane
Twin engine piston aircraft with retractable landing gear. The 421 seats up to 6 passengers plus 1 pilot.
Range from base
Still-air range ring — type an aircraft to change it. Compare aircraft on the Range tool ›
Last flight
Actual flight path from FlightAware for N477MG. More flight tracking ›
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