Twin piston

N4440K

1974 Cessna 421B

Registered 1 NTSB/FAA record
Built
1974
Serial
421B0567
Class
Twin piston
Engines
2 × Continental TSIO-520 series
Status
Current as of October 2026
Registered owner
Kate & Jennifer Airlines LLC (LLC)
Based
Tampa, FL
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1974 Cessna 421B
Representative photo of a Cessna 421B. Not a photo of N4440K.
Registration record

N4440K on the FAA register

Type
1974 Cessna 421B
Serial
421B0567
Engines
2 × Continental TSIO-520 series
Registered owner
Kate & Jennifer Airlines LLC
Tampa, FL
Certificate issued
2022-11-04
Airworthiness date
1974-01-30
Registration expires
2029-11-30
Airworthiness class
Standard · normal
Mode S (hex)
A55BDB
Mode S (octal)
51255733
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 N4440K.
Registry history

Timeline

  • 2029-11-30
    Registration expires (renewal due).
  • 2022-11-04
    Certificate of registration issued as N4440K to the current registrant.
  • 1990-09-24
    Accident at St. Thomas; damage: substantial.
  • 1974-01-30
    Airworthiness date on the current FAA record (standard category (normal)).
  • 1965-05-20
    N4440K previously assigned to a Ryan Navion (s/n NAV-4-1440); cancelled.
Overview

About N4440K

N4440K is a 1974 Cessna 421B, serial number 421B0567. The FAA register lists Kate & Jennifer Airlines LLC as the registrant in Tampa, Florida. The current certificate of registration was issued on November 4, 2022 and expires on November 30, 2029.

The FAA aircraft reference file describes the type as a twin piston, two Continental TSIO-520 series 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 January 30, 1974.

N4440K has 1 accident/incident record on file (most serious damage: substantial); details are below.

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

1990-09-24 Accident · St. Thomas Damage: Substantial NTSB · MIA90LA192
Reported aircraft: Cessna 402B
Probable cause: SEPARATION OF THE LEFT MAIN LANDING GEAR TORQUE TUBE BRACKET ASSEMBLY DUE TO SHEARED RIVETS FROM A PREVIOUS HARD SIDE LOAD LANDING WHICH WAS NOT REPORTED.

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

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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.