Twin piston

N421SE

1973 Cessna 421B

Registered No accidents on file
Built
1973
Serial
421B0393
Class
Twin piston
Engines
2 × Continental GTSIO-520-C
Status
Current as of October 2026
Registered owner
Quonset Aviation LLC (LLC)
Based
North Kingstown, RI
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1973 Cessna 421B
Representative photo of a Cessna 421B. Not a photo of N421SE.
Registration record

N421SE on the FAA register

Type
1973 Cessna 421B
Serial
421B0393
Engines
2 × Continental GTSIO-520-C
Registered owner
Quonset Aviation LLC
North Kingstown, RI
Certificate issued
2014-04-10
Airworthiness date
1973-04-23
Registration expires
2030-04-30
Airworthiness class
Standard · normal
Mode S (hex)
A500EB
Mode S (octal)
51200353
Seats (type)
8
Weight class
up to 12,499 lb
Range (type)
845 nm
Cruise (type)
235 kt
Status
Current as of October 2026
Market asking range
$219,000 to $389,000
Middle half of 15 live Cessna 421B listings, 1971–1975 models (median $339,000). Asking prices, not an appraisal of N421SE.
Registry history

Timeline

  • 2030-04-30
    Registration expires (renewal due).
  • 2014-04-10
    Certificate of registration issued as N421SE.
  • 1973-04-23
    Airworthiness date on the current FAA record (standard category (normal)).
Overview

About N421SE

N421SE is a 1973 Cessna 421B, serial number 421B0393. The FAA register lists Quonset Aviation LLC as the registrant in North Kingstown, Rhode Island. The current certificate of registration was issued on April 10, 2014 and expires on April 30, 2030.

The FAA aircraft reference file describes the type as a twin piston, two Continental GTSIO-520-C engines and 8 seats. Published figures for the type give a cruise speed of about 235 knots and a range of about 845 nm; actual performance depends on configuration, load and conditions. Its airworthiness certificate is standard category (normal), dated April 23, 1973.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N421SE.

Cruise
235 kt
Range
845 nm
Power / thrust (each)
375
Takeoff over 50 ft
2,387 ft
Landing over 50 ft
2,178 ft
Fuel burn
47 gph

Published figures for the Cessna 421B type. They describe the model, not this airframe's equipment or condition. Cessna 421B specs, prices and for-sale inventory →

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N421SE.

Sources: NTSB aviation accident database and CAROL case system, FAA preliminary accident & incident notices. Search accident records

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Browse: Cessna aircraft for sale· Cessna 421B overview· Aircraft registered in Rhode Island· Registry by state· FAA registry stats

Data: FAA Aircraft Registry (October 2026), including deregistered aircraft; NTSB and FAA accident data; fyiAero listing history. Individual owners' names are shown to signed-in users and street addresses are never shown. Type figures are published specifications, not this aircraft's.