Twin piston

N521RM

1977 Cessna 421C

Registered No accidents on file
Built
1977
Serial
421C0335
Class
Twin piston
Engines
2 × Continental GTSI0-520-F-K
Status
Current as of October 2026
Registered owner
Individual · sign in to see
Based
Denton, TX
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1977 Cessna 421C
Representative photo of a Cessna 421C. Not a photo of N521RM.
Registration record

N521RM on the FAA register

Type
1977 Cessna 421C
Serial
421C0335
Engines
2 × Continental GTSI0-520-F-K
Registered owner
Individual — the name of an individual registrant is shown to signed-in users. Sign in
Denton, TX
Certificate issued
2026-02-04
Airworthiness date
1977-08-09
Registration expires
2033-02-28
Airworthiness class
Standard · normal
Mode S (hex)
A68E28
Mode S (octal)
51507050
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 N521RM.
Registry history

Timeline

  • 2033-02-28
    Registration expires (renewal due).
  • 2026-02-04
    Certificate of registration issued as N521RM.
  • 1977-08-09
    Airworthiness date on the current FAA record (standard category (normal)).
Overview

About N521RM

N521RM is a 1977 Cessna 421C, serial number 421C0335. It is registered to an individual in Denton, Texas. The current certificate of registration was issued on February 4, 2026 and expires on February 28, 2033.

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 August 9, 1977.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N521RM.

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 N521RM.

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.