Twin piston

N87MK

1974 Cessna 421B

Registered No accidents on file
Built
1974
Serial
421B0808
Class
Twin piston
Engines
2 × Continental GTSIO-520-C
Status
Current as of October 2026
Registered owner
Wind River Aviation LLC (LLC)
Based
Lawton, OK
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1974 Cessna 421B
Representative photo of a Cessna 421B. Not a photo of N87MK.
Registration record

N87MK on the FAA register

Type
1974 Cessna 421B
Serial
421B0808
Engines
2 × Continental GTSIO-520-C
Registered owner
Wind River Aviation LLC
Lawton, OK
Certificate issued
2024-01-26
Airworthiness date
1974-11-01
Registration expires
2031-01-31
Airworthiness class
Standard · normal
Mode S (hex)
ABF51A
Mode S (octal)
52772432
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 N87MK.
Registry history

Timeline

  • 2031-01-31
    Registration expires (renewal due).
  • 2024-01-26
    Certificate of registration issued as N87MK to the current registrant.
  • 2014-10-21
    N87MK previously assigned to a Cessna 182J / 182 Skylane (s/n 18257392); cancelled.
  • 1974-11-01
    Airworthiness date on the current FAA record (standard category (normal)).
Overview

About N87MK

N87MK is a 1974 Cessna 421B, serial number 421B0808. The FAA register lists Wind River Aviation LLC as the registrant in Lawton, Oklahoma. The current certificate of registration was issued on January 26, 2024 and expires on January 31, 2031.

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 November 1, 1974.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N87MK.

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 N87MK.

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 Oklahoma· 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.