Twin piston

N237SM

1976 Cessna 421C

Registered 1 NTSB/FAA record
Built
1976
Serial
421C0237
Class
Twin piston
Engines
2 × Continental GTSI0-520-F-K
Status
Current as of October 2026
Registered owner
Western Rivers Aircraft LLC (LLC)
Based
Paducah, KY
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1976 Cessna 421C
Representative photo of a Cessna 421C. Not a photo of N237SM.
Registration record

N237SM on the FAA register

Type
1976 Cessna 421C
Serial
421C0237
Engines
2 × Continental GTSI0-520-F-K
Registered owner
Western Rivers Aircraft LLC
Paducah, KY
Certificate issued
2007-10-29
Airworthiness date
1976-12-29
Registration expires
2028-07-31
Airworthiness class
Standard · normal
Mode S (hex)
A2241D
Mode S (octal)
50422035
Seats (type)
8
Weight class
up to 12,499 lb
Range (type)
1,197 nm
Cruise (type)
241 kt
Status
Current as of October 2026
Market asking range
$300,000 to $549,000
Middle half of 43 live Cessna 421C listings, 1976–1984 models (median $439,000). Asking prices, not an appraisal of N237SM.
Registry history

Timeline

  • 2028-07-31
    Registration expires (renewal due).
  • 2007-10-29
    Certificate of registration issued as N237SM.
  • 2002-04-25
    Accident at Tampa, FL; damage: substantial.
  • 1976-12-29
    Airworthiness date on the current FAA record (standard category (normal)).
Overview

About N237SM

N237SM is a 1976 Cessna 421C, serial number 421C0237. The FAA register lists Western Rivers Aircraft LLC as the registrant in Paducah, Kentucky. The current certificate of registration was issued on October 29, 2007 and expires on July 31, 2028.

The FAA aircraft reference file describes the type as a twin piston, two Continental GTSI0-520-F-K engines and 8 seats. Published figures for the type give a cruise speed of about 241 knots and a range of about 1,197 nm; actual performance depends on configuration, load and conditions. Its airworthiness certificate is standard category (normal), dated December 29, 1976.

N237SM has 1 accident/incident record on file (most serious damage: substantial); details are below.

Cruise
241 kt
Range
1,197 nm
Power / thrust (each)
375
Takeoff over 50 ft
2,323 ft
Landing over 50 ft
2,293 ft
Fuel burn
47 gph

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

Safety record

Accident & incident history

2002-04-25 Accident · Tampa, FL Damage: Substantial NTSB · MIA02LA089
Reported aircraft: Cessna 421C
Probable cause: the fracture of the landing gear upper barrel due to fatigue cracking, caused by improper machining after the barrel was assembled during the manufacturing process, resulting in damage to the airplane.

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 421C overview· Aircraft registered in Kentucky· 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.