Skip to content
KnownTail
Aircraft record

N431BG1980 Beechcraft C90

Registration validUnclaimedSource: FAA, updated Oct 20, 2026

Safety record in brief:No NTSB accidents or incidents since 19827 ADs may apply2 service difficulty reports

Registration
Valid
expires Dec 31, 2029
Based in
Bismarck, ND
owner city / state
Engine
PT6A-21 · 550 hp
P&W Canada
Owners
1
since 2022
NTSB events
None
since 1982
ADs may apply
7
confirm with A&P
Service reports
2
since 1995

Registration

FAA Aircraft Registry · Oct 20, 2026
Registered owner
Bismarck Air Medical LLC
Owner type
LLC
City, state
Bismarck, ND
Certificate issued
Dec 7, 2022
Expires
Dec 31, 2029
Airworthiness
Standard · Normal
Airworthiness date
Oct 31, 1980

We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.

Airframe & engine

FAA Registry + type data

Airframe

Manufacturer
Beechcraft
Model
C90
Year
1980
Serial number
LJ-933
Aircraft type
Fixed wing multi engine
Category
Land
Certification
Type Certificated
Seats
9
Engines
2
Max takeoff weight
Up to 12,499 lb
Mode S code
A526F5

Engine

Make and model
P&W Canada Pt6a-21
Type
Turbo-prop
Power
550 hp

Total time and engine hours aren't public. They appear here once the owner adds logbooks.

Ownership history

Ownership history from FAA records
  1. 2022 – nowBismarck Air Medical LLCBismarck, ND · current

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 20, 2026 · SDRs · Oct 16, 2026

NTSB events (0)

No NTSB accidents or incidents found for this airframe since 1982.

Accident history for this model

ADs published since 1998 that may apply (7)

These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.

ADSubjectEffectiveApplies to
2004-17-02Raytheon Aircraft Company 65, 90, 99, 100, 200, 300, and 1900 Series AirplanesOct 4, 2004Airframe (C90)Certain serial numbers: 65-A90, B90, C90, C90A LJ-76; 65-A90, B90, C90, C90A LJ-114–LJ-1691; E90 LW-1–LW-347; F90 LA-2–LA-236; 99, 99A, A99A, B99, C99 U-1–U-239; 100, A100 B-1–B-94; …
2002-23-13Pratt & Whitney Canada PT6A Series Turboprop EnginesDec 31, 2002Engine (PT6A-21)Only with: Engines with turbine exhaust ducts P/N 3012290, 3031988, 3032117, 3035784, 3035786, 3105890-01, 3112167-01, or 3111780-01 installed.
2002-01-10Raytheon Aircraft Company Beech Models 65-90, 65-A90, 65-A90-1, 65-A90-4, B90, C90…Feb 22, 2002Airframe (C90)Certain serial numbers: 65-90 LJ-1–LJ-1559; 65-A90 LJ-1–LJ-1559; B90 LJ-1–LJ-1559; C90 LJ-1–LJ-1559; C90A LJ-1–LJ-1559; 65-A90-1 LM-1–LM-141; …
2000-02-15Raytheon Aircraft Company Beech Models 65-90, 65-A90, B90, and C90 AirplanesFeb 18, 2000Airframe (C90)Only with: At least one Motorlet Walter M601E-11 turboprop engine (with Avia-Hamilton Standard VJ8-510 propeller) installed per STC SA01366AT.
99-10-07Raytheon Aircraft Corporation Beech Models 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3…Jun 8, 1999Airframe (C90)
Show all 7 ADs
ADSubjectEffectiveApplies to
97-25-03Raytheon Aircraft Company 65, 90, 99, 100, 200, 300, 1900, and 2000 Series AirplanesJan 21, 1998Airframe (C90)
97-23-17Raytheon Aircraft Company 90, 100, 200, and 300 Series Airplanes (Formerly Known as…Dec 29, 1997Airframe (C90)Certain serial numbers: C90 LJ-683–LJ-1463; C90A LJ-683–LJ-1463; E90 LW-177–LW-347; F90 LA-1–LA-236; H90 LL-1–LL-61; A100 B-228–B-247; …

AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.

Service Difficulty Reports (2)

Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.

  • Air conditioning and pressurization · blower motor · overheatedFeb 4, 2022

    ON CLIMB OUT IT APPEARS THAT THE VENT BLOWER MOTOR BELOW THE PILOT'S FEET SEIZED UP AND THEN THE MOTOR ITSELF STARTED TO SMOKE. THE BREAKER FOR THE MOTOR TRIPPED AT THIS TIME.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Landing gear · wheel · crackedOct 5, 2017

    CRACK LIKE INDICATION LOCATED ON THE BEAD AREA OF WHEEL ON BOTH HALVES. CRACK INDICATION WERE FOUND BY THE EDDY CURRENT EXAMINATION METHOD.

    From FAA Service Difficulty Reports; matched by N-number and serial number.

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 20, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 20, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

Request owner name removalReport an error in this record