Twin turboprop

N5641X

1990 Beechcraft KING Air C90A

Registered No accidents on file
Built
1990
Serial
LJ-1241
Class
Twin turboprop
Engines
2 × U/A Canada PT6A series
Status
Current as of October 2026
Registered owner
Buche-Air LLC (LLC)
Based
Sioux Falls, SD
Registration record

N5641X on the FAA register

Type
1990 Beechcraft KING Air C90A
Serial
LJ-1241
Engines
2 × U/A Canada PT6A series
Registered owner
Buche-Air LLC
Sioux Falls, SD
Certificate issued
2021-04-13
Airworthiness date
1990-04-11
Registration expires
2028-04-30
Airworthiness class
Standard · normal
Mode S (hex)
A73857
Mode S (octal)
51634127
Seats (type)
9
Weight class
up to 12,499 lb
Range (type)
1,150 nm
Cruise (type)
225 kt
Status
Current as of October 2026
Registry history

Timeline

  • 2028-04-30
    Registration expires (renewal due).
  • 2021-04-13
    Certificate of registration issued as N5641X to the current registrant.
  • 1990-04-11
    Airworthiness date on the current FAA record (standard category (normal)).
Overview

About N5641X

N5641X is a 1990 Beechcraft KING Air C90A, serial number LJ-1241. The FAA register lists Buche-Air LLC as the registrant in Sioux Falls, South Dakota. The current certificate of registration was issued on April 13, 2021 and expires on April 30, 2028.

The FAA aircraft reference file describes the type as a twin turboprop, two U/A Canada PT6A series engines and 9 seats. Published figures for the type give a cruise speed of about 225 knots and a range of about 1,150 nm; actual performance depends on configuration, load and conditions. Its airworthiness certificate is standard category (normal), dated April 11, 1990.

No NTSB accident or incident reports and no FAA preliminary notices are on file for this airframe as N5641X. 1 earlier record involves a different aircraft that carried the same N-number.

Cruise
225 kt
Range
1,150 nm
Power / thrust (each)
550
Takeoff over 50 ft
2,261 ft
Landing over 50 ft
1,672 ft
Fuel burn
83 gph

Published figures for the Beechcraft KING Air C90A type. They describe the model, not this airframe's equipment or condition. Beechcraft KING Air C90A specs, prices and for-sale inventory →

Safety record

Accident & incident history

1984-05-16 Accident · Alexandria, LA Damage: Substantial NTSB · FTW84LA240
Reported aircraft: Rockwell S2R — a different aircraft that carried the N5641X registration before this airframe.

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

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  • N43WA1970 Beechcraft KING Air B90
  • N162DE1979 Dehavilland DHC-6 TWIN Otter
  • N351TA1989 Short Bros SD3-60
  • N331JP2005 Raytheon C90GT
  • N328RE1983 Piper Cheyenne IIXL
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Browse: Beechcraft aircraft for sale· Beechcraft KING Air C90A overview· Aircraft registered in South Dakota· 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.