Twin piston

N421BX

Cessna 421B

Registered No accidents on file
Built
—
Serial
421B0391
Class
Twin piston
Engines
2 × Continental GTSIO-520-H
Status
Current as of October 2026
Registered owner
Crystal Air LLC (LLC)
Based
Brighton, MA
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Cessna 421B
Representative photo of a Cessna 421B. Not a photo of N421BX.
Registration record

N421BX on the FAA register

Type
Cessna 421B
Serial
421B0391
Engines
2 × Continental GTSIO-520-H
Registered owner
Crystal Air LLC
Brighton, MA
Certificate issued
2025-09-19
Airworthiness date
2006-08-07
Registration expires
2032-09-30
Airworthiness class
Standard · normal
Mode S (hex)
A4FF85
Mode S (octal)
51177605
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 N421BX.
Registry history

Timeline

  • 2032-09-30
    Registration expires (renewal due).
  • 2025-09-19
    Certificate of registration issued as N421BX.
  • 2006-08-07
    Airworthiness date on the current FAA record (standard category (normal)).
Overview

About N421BX

N421BX is a Cessna 421B, serial number 421B0391. The FAA register lists Crystal Air LLC as the registrant in Brighton, Massachusetts. The current certificate of registration was issued on September 19, 2025 and expires on September 30, 2032.

The FAA aircraft reference file describes the type as a twin piston, two Continental GTSIO-520-H 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 August 7, 2006.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N421BX.

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 N421BX.

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

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Same state

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Browse: Cessna aircraft for sale· Cessna 421B overview· Aircraft registered in Massachusetts· 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.