Twin turboprop

N1801B

1974 Beechcraft KING Air C90

Registered 1 NTSB/FAA record
Built
1974
Serial
LJ-634
Class
Twin turboprop
Engines
2 × U/A Canada PT6A-6A&6B
Status
Current as of October 2026
Registered owner
Sjd Flight LLC (LLC)
Based
Houston, TX
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Registration record

N1801B on the FAA register

Type
1974 Beechcraft KING Air C90
Serial
LJ-634
Engines
2 × U/A Canada PT6A-6A&6B
Registered owner
Sjd Flight LLC
Houston, TX
Certificate issued
2018-07-31
Airworthiness date
1974-05-01
Registration expires
2028-07-31
Airworthiness class
Standard · normal
Mode S (hex)
A14329
Mode S (octal)
50241451
Seats (type)
9
Weight class
up to 12,499 lb
Range (type)
900 nm
Cruise (type)
195 kt
Status
Current as of October 2026
Registry history

Timeline

  • 2028-07-31
    Registration expires (renewal due).
  • 2018-07-31
    Certificate of registration issued as N1801B to the current registrant.
  • 2000-10-17
    Accident at Van Nuys, CA; damage: substantial.
  • 1974-05-01
    Airworthiness date on the current FAA record (standard category (normal)).
  • 1971-07-14
    N1801B previously assigned to a Luscombe 8E (s/n 6228); cancelled.
Overview

About N1801B

N1801B is a 1974 Beechcraft KING Air C90, serial number LJ-634. The FAA register lists Sjd Flight LLC as the registrant in Houston, Texas. The current certificate of registration was issued on July 31, 2018 and expires on July 31, 2028.

The FAA aircraft reference file describes the type as a twin turboprop, two U/A Canada PT6A-6A&6B engines and 9 seats. Published figures for the type give a cruise speed of about 195 knots and a range of about 900 nm; actual performance depends on configuration, load and conditions. Its airworthiness certificate is standard category (normal), dated May 1, 1974.

N1801B has 1 accident/incident record on file (most serious damage: substantial); details are below. 1 earlier record involves a different aircraft that carried the same N-number.

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

Published figures for the Beechcraft KING Air C90 type. They describe the model, not this airframe's equipment or condition. Beechcraft KING Air C90 specs, prices and for-sale inventory →

Safety record

Accident & incident history

2000-10-17 Accident · Van Nuys, CA Damage: Substantial NTSB · LAX01FA018A
Reported aircraft: Beechcraft C90
Probable cause: The failure of the pilot to correctly set a new transponder code and an anomaly in ATC software that precluded the controller from manually overriding the resulting inhibition of displayed data. Factors in the accident were impaired function of the collision avoidance system in the other airplane due to structural masking of the airplane's transponder antenna, an intermittent failure of the approach controller's communication radio transmitter which interfered with his ability to communicate traffic information to the flight crew of other airplane, the failure of both the approach controller and the tower controller to issue safety alerts when the traffic conflict became apparent, and the…
1968-06-08 Accident · Cooperstown,N Dak, 34 Damage: Destroyed NTSB · 3 3467
Reported aircraft: Luscombe 8E — a different aircraft that carried the N1801B registration before this airframe.
Probable cause: ILING

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

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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.