Single-engine piston

N645BK

1984 Mooney M20K 231

Registered No accidents on file
Built
1984
Serial
25-0843
Class
Single-engine piston
Engines
Continental TSIO-360-LB
Status
Current as of October 2026
Registered owner
Bk Earnest LLC (LLC)
Based
Oviedo, FL
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1984 Mooney M20K 231
Representative photo of a Mooney M20K 231. Not a photo of N645BK.
Registration record

N645BK on the FAA register

Type
1984 Mooney M20K 231
Serial
25-0843
Engines
Continental TSIO-360-LB
Registered owner
Bk Earnest LLC
Oviedo, FL
Certificate issued
2025-02-14
Airworthiness date
2025-03-04
Registration expires
2032-02-29
Airworthiness class
Standard · normal
Mode S (hex)
A877F1
Mode S (octal)
52073761
Seats (type)
4
Weight class
up to 12,499 lb
Range (type)
980 nm
Cruise (type)
191 kt
Status
Current as of October 2026
Market asking range
$121,250 to $149,750
Middle half of 20 live Mooney M20K 231 listings, 1979–1985 models (median $139,950). Asking prices, not an appraisal of N645BK.
Registry history

Timeline

  • 2032-02-29
    Registration expires (renewal due).
  • 2025-03-04
    Airworthiness date on the current FAA record (standard category (normal)).
  • 2025-02-14
    Certificate of registration issued as N645BK.
  • 1984
    Manufactured (1984).
Overview

About N645BK

N645BK is a 1984 Mooney M20K 231, serial number 25-0843. The FAA register lists Bk Earnest LLC as the registrant in Oviedo, Florida. The current certificate of registration was issued on February 14, 2025 and expires on February 29, 2032.

The FAA aircraft reference file describes the type as a single-engine piston, one Continental TSIO-360-LB engine and 4 seats. Published figures for the type give a cruise speed of about 191 knots and a range of about 980 nm; actual performance depends on configuration, load and conditions. Its airworthiness certificate is standard category (normal), dated March 4, 2025.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N645BK.

Cruise
191 kt
Range
980 nm
Power / thrust (each)
210
Takeoff over 50 ft
2,060 ft
Landing over 50 ft
2,280 ft
Fuel burn
13 gph

Published figures for the Mooney M20K 231 type. They describe the model, not this airframe's equipment or condition. Mooney M20K 231 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 N645BK.

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

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Browse: Mooney aircraft for sale· Mooney M20K 231 overview· Aircraft registered in Florida· 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.