Twin piston

N421ZM

1981 Cessna 421C

Registered No accidents on file
Built
1981
Serial
421C1058
Class
Twin piston
Engines
2 × Continental GTSIO-520 series
Status
Current as of October 2026
Registered owner
3Tr Aviation LLC (LLC)
Based
Longview, TX
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1981 Cessna 421C
Representative photo of a Cessna 421C. Not a photo of N421ZM.
Registration record

N421ZM on the FAA register

Type
1981 Cessna 421C
Serial
421C1058
Engines
2 × Continental GTSIO-520 series
Registered owner
3Tr Aviation LLC
Longview, TX
Certificate issued
2025-11-23
Airworthiness date
1998-04-03
Registration expires
2032-11-30
Airworthiness class
Standard · normal
Mode S (hex)
A501A1
Mode S (octal)
51200641
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 N421ZM.
Registry history

Timeline

  • 2032-11-30
    Registration expires (renewal due).
  • 2025-11-23
    Certificate of registration issued as N421ZM.
  • 1998-04-03
    Airworthiness date on the current FAA record (standard category (normal)).
  • 1981
    Manufactured (1981).
Overview

About N421ZM

N421ZM is a 1981 Cessna 421C, serial number 421C1058. The FAA register lists 3Tr Aviation LLC as the registrant in Longview, Texas. The current certificate of registration was issued on November 23, 2025 and expires on November 30, 2032.

The FAA aircraft reference file describes the type as a twin piston, two Continental GTSIO-520 series 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 April 3, 1998.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N421ZM.

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

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N421ZM.

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 Texas· 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.