1975 Cessna 421 B
Multi Engine Piston
Aircraft Details
Seller reportedDescription
No Damage History
Complete Logbooks
Always Hangered
Annual Due August 2027
IFR inspection Due August 2027
3,024 lbs Of Useful Load
Located Near Atlanta, GA Garmin GMA 345 Audio Panel
Dual Garmin GI-275 EFD's
Garmin GTN 750 WAAS Touchscreen GPS
Garmin GFC 600 Autopilot
Garmin GNC 255 Com/Nav
Garmin GTX 345 ADS-B In/Out Transponder
Garmin FlightStream 510 WIFI & Bluetooth Data-link Complete New Tan Leather Interior With Custom Diamond Stitching, New Seats, New Side Panels Carpets, Headliner
Description and equipment details provided by the seller. AeroGurus does not verify seller-provided information.
Price Comparison
| Source | Price | Location | Listed | Days on Market | Status | Action |
|---|---|---|---|---|---|---|
|
Listing Source
planesalesusa.com
|
$489,900
|
Georgia | Jul 21, 2026 | 4 days | Active |
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AeroGurus Data & Analysis
Independent data from FAA, NTSB, and market analysis
About This Cessna 421 B
This 1975 Cessna 421 B (N41SP) is a 8-seat multi engine piston with 5,800 hours on the airframe. This aircraft is listed at the market average at $489,900.
The 421 B cruises at 230 kts (426 km/h) with a range of 1,385 nm (2,565 km) — suitable for regional and medium-distance travel. Service ceiling of 30,200 ft allows operation above most weather.
Operating costs: Fuel burn is 35 GPH (132 L/h), which at current 100LL avgas prices (~$6.20/gal) means approximately $217/hr in fuel alone. Total variable cost including maintenance reserves is approximately $400/hr. Annual fixed costs (hangar, insurance, crew, annual inspection) average $35,000. With 5,800 hours on the airframe, this aircraft has exceeded TBO (1,600 hrs) — verify engine status and overhaul reserve.
NTSB records show 0 incidents for this airframe — a clean safety record. There are 1 airworthiness directive applicable to this aircraft type — review AD compliance carefully before purchase. Mechanics have filed 10 service difficulty reports for this type — common maintenance items to discuss during pre-buy.
Pre-Purchase Checklist
Cessna 421 B — Model Specs
Model specificationStandard specs for this model. Actual aircraft may differ.
Estimated Cost of Ownership
AeroGurus estimateCESSNA 421
AeroGurus estimates based on industry averages for the CESSNA 421. Actual costs vary by location, usage, maintenance history, and configuration. Not a financial quote.
Ownership & Registration
FAA registration data pending for N41SP.
Location & Ownership
Aircraft Location
Georgia
Seller reportedTitle Status
No FAA title records
Available for US-registered aircraft only
Source: FAA Aircraft Registry, FAA Civil Aviation Registry (DocIndex). Title data may be delayed. Always verify with an aviation attorney before purchase.
Safety Record
NTSB safety data coming soon.
We'll check N41SP against the NTSB accident database.
Airworthiness Directives — Cessna 421
ADs are mandatory safety instructions issued by the FAA. 1 recent AD found for this aircraft type.
The Cessna Aircraft Company Models 401, 401A, 401B, 402, 402A, 402B, 402C, 404, 411, 411A, 414, 414A, 421, 421A, 421B, 421C, 425, and 441 Airplanes
View full AD →Source: FAA Airworthiness Directives database. Showing most recent ADs for this aircraft type.
Service Difficulty Reports — Cessna 421
SDRs are reports filed by mechanics about problems found during maintenance. 10 recent reports for this aircraft type.
LOSS OF 5 INCHES OF MP AT FL 240 AND INFLIGHT INVESTIGATION SHOWED A ROUGH RUNNING RH MAGNETO. DISCOVERY OF A DEFECTIVE SPARK PLUG LEAD (SEE OTHER SDR) ON A 25 HR TTSN CHAMPION SPARK PLUG HARNESS LED WITH 25 HRS TTSN SPARK CHAMPION RHB32E SPARK PLU...
CRUISE FLIGHT FL 240, 25 HRS SINCE NEW CHAMPION IGNITION HARNESS, BLUE LABEL TCM/CAT BENDIX S6LN-1205 MAGNETO, AND CHAMPION RHB32E SPARK PLUGS AT ENGINE OVERHAUL (25 HRS TTSMOH OF ENGINE). IN CRUISE FLIGHT LOST 5 INCHES OF MP PRESSURE ON NEWLY OVER...
A CRACK ON THE SKIN AT THE RIGHT WING REAR SPAR AND TRAILING EDGE. THE LOCATION IS AT THE MAIN FUEL TANK REAR SPAR ATTACH POINT. THE CRACK IS CAUSED BY VIBRATION OR LOOSE REAR MAIN FUEL TANK ATTACH BOLT. RECOMMENDED AT EACH ANNUAL INSPECTION, INSP...
PERFORMED REPAIR WORK ON THE AIRCRAFT FOR LOW CABIN DIFFERENTIAL/PRESSURIZATION. FOUND MANY LEAKS AND REPAIRED. DIFFERENTIAL WAS REPAIRED TO BOOK VALUES. CUSTOMER TOOK POSSESSION OF THE AIRCRAFT AND AFTER SEVERAL FLIGHT HOURS HEARD A POP AND LOST SOM...
(CAN) AIRCRAFT SUFFERED AN UNCOMMANDED RIGHT ENGINE SHUT DOWN APPROXIMATELY 10 MINUTES INTO THE FLIGHT, PILOT EXECUTED AND ENGINE OUT SHUT DOWN AND FEATHERED THE PROPELLER, THEN DIVERTED. ON OPENING THE RIGHT ENGINE COWLS THE FOLLOWING WAS FOUND: TH...
HAD ONE ROUGH MAG CHECK AND 2 GOOD MAG CHECKS PRIOR TO FLIGHT. REDUCED POWER IN CLIMB AND MAG CHECK REVEALED NO SPARK ON LT MAGNETO. RETURNED TO AIRPORT. REMOVED IGNITION HARNESS FROM MAG AND NOTICED LOTS OF METAL FLAKES UNDER THE COVER OF THE MAG...
FOUND PILOTS SEAT LT PIVOT ARM BROKEN. REPLACED PIVOT ARM IAW SERVICE MANUAL (REV 15) SECTION 3.
WHEN OIL FILTER WAS SECTIONED FOR CHECK FOR CONTAMINATION, LARGE CHIPS OF ALUMINUM WERE NOTED. SENT OIL FILTER TO AVIATION OIL ANALYSIS LABS AND CONTACTED ENGINE MFG FOR GUIDANCE. REMOVED AND INSPECTED OIL PUMP, NO DEFECTS FOUND. REMOVED VALVE TRA...
WHILE REPAIRING RUDDER DUE TO WIND DAMAGE, FOUND RUDDER TORQUE TUBE, PN 5133011-9 TO BE BADLY CORRODED. REPLACED WITH NEW.
RPM AND MANIFOLD PRESSURE STARTED FLUCTUATING FOR THE RT ENGINE. WHITE SMOKE FROM TURBO CHARGER VENTS WAS NOTED AS WELL AS OIL STREAKS NOTED. OIL PRESSURE DROPPED TO BOTTOM OF GREEN ARC ON THE OIL PRESSURE GAGE. EMERGENCY PROCEDURE CHECKLIST CALLE...
Source: FAA Service Difficulty Reporting System. Shows maintenance issues reported by mechanics for this aircraft type.
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