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Type Record · As of May 3, 2026

CESSNA AIRCRAFT CO LC41-550FG

Fixed Wing Single Engine · CONT MOTOR TSIO-550-C

Registered

144

Year Range

2008–2010

NTSB Events

23

Airworthiness Directives

18

01 /  Distribution

Where the fleet lives and was built

Counts of currently-registered CESSNA AIRCRAFT CO LC41-550FG aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.

By State (top 10)

  • TX 13.2% 19
  • CA 11.8% 17
  • DE 9.7% 14
  • FL 8.3% 12
  • NC 4.9% 7
  • GA 4.2% 6
  • SC 4.2% 6
  • CO 3.5% 5
  • KS 3.5% 5
  • MT 2.8% 4

+27 more states

By Decade of Manufacture

  • 2000s 86.1% 124
  • 2010s 5.6% 8
  • Unknown 8.3% 12

02 /  NTSB Records

Events involving CESSNA AIRCRAFT CO LC41-550FG aircraft

23 event(s) on file. Showing the most recent 23.

03 /  Airworthiness Directives

FAA directives applicable to CESSNA AIRCRAFT CO LC41-550FG

18 directive(s) on file. Showing the most recent 18.

  • Jun 12, 2023

    Airworthiness Directives; Various Airplanes, Helicopters, and Engines

    The FAA is adopting a new airworthiness directive (AD) for turbocharged, reciprocating engine-powered airplanes and helicopters and turbocharged, reciprocating engines with a certain v-band coupling installed. This AD was prompted by multiple failures of spot-welded, multi-segment v-band couplings at the tailpipe to t…

  • Aug 17, 2020

    Airworthiness Directives; Aspen Avionics, Inc.

    The FAA is correcting an airworthiness directive (AD) that published in the Federal Register. The AD applies to certain Aspen Avionics, Inc., Evolution Flight Display (EFD) EFD1000 Emergency Backup Display, EFD1000 Multi-Function Display, and EFD1000 Primary Flight Display systems installed on various airplanes. As pu…

  • Jul 31, 2020

    Airworthiness Directives; Aspen Avionics, Inc.

    The FAA is adopting a new airworthiness directive (AD) for certain Aspen Avionics, Inc., Evolution Flight Display (EFD) EFD1000 Emergency Backup Display, EFD1000 Multi-Function Display, and EFD1000 Primary Flight Display systems installed on various airplanes. This AD imposes operating restrictions on these display sy…

  • Jan 23, 2019

    Airworthiness Directives; Aspen Avionics, Inc., Evolution Flight Display Units

    We are adopting a new airworthiness directive (AD) for certain Aspen Avionics, Inc. (Aspen), Evolution Flight Display (EFD) EFD1000 Primary Flight Display (PFD), EFD1000 Multi-Function Display (MFD), EFD1000 Emergency Backup Display (EBD), and EFD500 MFD units installed on various aircraft. This AD requires disabling…

  • Jun 21, 2013

    Airworthiness Directives; Cessna Aircraft Company Airplanes

    We are adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) (previously COLUMBIA or LANCAIR) Models LC40-550FG, LC41-550FG, and LC42-550FG airplanes. This AD was prompted by reports that during maximum braking, if the brakes lock up and a skid occurs, a severe oscillatory yawing mot…

  • Dec 21, 2012

    Airworthiness Directives; Cessna Aircraft Company Airplanes

    We propose to adopt a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) (previously COLUMBIA or LANCAIR) Models LC40-550FG, LC41-550FG, and LC42-550FG airplanes. This proposed AD was prompted by reports that during maximum braking, if the brakes lock up and a skid occurs, a severe oscillato…

  • Feb 7, 2011

    Airworthiness Directives; Cessna Aircraft Company (Type Certificate Previously Held by Columbia Aircraft Manufacturing (Previously the Lancair Company)) Models LC40-550FG, LC41-550FG, and LC42-550FG Airplanes

    We are superseding an existing airworthiness directive (AD) for the products listed above. AD 2009-09-09 currently requires repetitive inspections of the rudder hinges and the rudder hinge brackets for damage, i.e., cracking, deformation, and discoloration. If damage is found during any inspection, AD 2009-09-09 also…

  • Jan 10, 2011

    Airworthiness Directives; Cessna Aircraft Company (Cessna) (Type Certificate A00003SE Previously Held by Columbia Aircraft Manufacturing (Previously The Lancair Company)) Models LC41-550FG and LC42-550FG Airplanes

    We are adopting a new airworthiness directive (AD) for the products listed above. This emergency AD was sent previously to all known U.S. owners and operators of these airplanes. This AD requires obtaining written approval from the Manager, Wichita Aircraft Certification Office (ACO), to operate the airplane. This wri…

  • Oct 27, 2010

    Airworthiness Directives; Cessna Aircraft Company (Type Certificate Previously Held by Columbia Aircraft Manufacturing (Previously the Lancair Company)) Models LC40-550FG, LC41-550FG, and LC42-550FG Airplanes

    We are revising an earlier proposed airworthiness directive (AD) for the products listed above. That NPRM proposed to retain the inspection requirements of AD 2009-09-09 and add a terminating action for the repetitive inspection requirements. That NPRM resulted from the manufacturer developing a modification that, whe…

  • Dec 17, 2009

    Airworthiness Directives; Cessna Aircraft Company (Type Certificate Previously Held by Columbia Aircraft Manufacturing (Previously The Lancair Company)) Models LC40-550FG, LC41-550FG, and LC42-550FG Airplanes

    We propose to supersede Airworthiness Directive (AD) 2009-09- 09, which applies to certain Cessna Aircraft Company (Cessna) (type certificate previously held by Columbia Aircraft Manufacturing (previously The Lancair Company)) Models LC40-550FG, LC41-550FG, and LC42-550FG airplanes. AD 2009-09-09 currently requires re…

  • Apr 30, 2009

    Airworthiness Directives; Cessna Aircraft Company (Type Certificate Previously Held by Columbia Aircraft Manufacturing (Previously The Lancair Company)) Models LC40-550FG, LC41-550FG, and LC42-550FG Airplanes

    We are adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company (Type Certificate previously held by Columbia Aircraft Manufacturing (previously The Lancair Company)) Models LC40- 550FG, LC41-550FG, and LC42-550FG airplanes. This AD requires you to repetitively inspect the rudder hinges and the…

  • Feb 27, 2009

    Airworthiness Directives; Avidyne Corporation Primary Flight Displays (Part Numbers 700-00006-000, -001, -002, -003, and -100)

    We are adopting a new airworthiness directive (AD) to supersede AD 2008-06-28 R1, which applies to certain Avidyne Corporation (Avidyne) Primary Flight Displays (PFDs) (part numbers (P/Ns) 700-00006-000, -001, -002, -003, and -100) that are installed on airplanes. AD 2008-06-28 R1 currently requires you to do a check…

  • Nov 14, 2008

    Airworthiness Directives; Avidyne Corporation Primary Flight Displays (Part Numbers 700-00006-000, -001, -002, -003, and -100)

    We propose to supersede Airworthiness Directive (AD) 2008-06- 28 R1, which applies to certain Avidyne Corporation (Avidyne) Primary Flight Displays (PFDs) (part numbers (P/Ns) 700-00006-000, -001, -002, -003, and -100) that are installed on airplanes. AD 2008-06-28 R1 currently requires you to do a check of the mainte…

  • Oct 31, 2008

    Airworthiness Directives; Cessna Aircraft Company (Type Certificate Previously Held by Columbia Aircraft Manufacturing) Models LC40-550FG, LC41-550FG, and LC42-550FG Airplanes

    We are adopting a new airworthiness directive (AD) to revise AD 2007-07-06, which applies to certain Cessna Aircraft Company (type certificate previously held by Columbia Aircraft Manufacturing) (Cessna) Models LC40-550FG, LC41-550FG, and LC42-550FG airplanes. AD 2007-07-06 currently requires the following: Adding inf…

  • Sep 2, 2008

    Airworthiness Directives; Cessna Aircraft Company (Type Certificate Previously Held by Columbia Aircraft Manufacturing) Models LC40-550FG, LC41-550FG, and LC42-550FG Airplanes

    This document makes a correction to a proposed airworthiness directive (AD), which was published in the Federal Register on August 7, 2008 (73 FR 45902), and applies to certain Cessna Aircraft Company (type certificate previously held by Columbia Aircraft Manufacturing) (Cessna) Models LC40-550FG, LC41-550FG, and LC42…

  • Aug 7, 2008

    Airworthiness Directives; Cessna Aircraft Company (Type Certificate Previously Held by Columbia Aircraft Manufacturing) Models LC40-550FG, LC41-550FG, and LC42-550FG Airplanes

    We propose to revise Airworthiness Directive (AD) 2007-07- 06, which applies to certain Cessna Aircraft Company (type certificate previously held by Columbia Aircraft Manufacturing) (Cessna) Models LC40-550FG, LC41-550FG, and LC42-550FG airplanes. AD 2007-07-06 currently requires the following: adding information to t…

  • Apr 14, 2008

    Airworthiness Directives; Avidyne Corporation Primary Flight Displays (Part Numbers 700-00006-000, -001, -002, -003, and -100)

    The FAA is adopting a new airworthiness directive (AD) to revise AD 2008-06-28, which applies to certain Avidyne Corporation (Avidyne) Primary Flight Displays (PFDs) (Part Numbers (P/Ns) 700- 00006-000, -001, -002, -003, and -100) that are installed on airplanes. AD 2008-06-28 currently requires you to do a check of t…

  • Mar 26, 2008

    Airworthiness Directives; Avidyne Corporation Primary Flight Displays (Part Numbers 700-00006-000, -001, -002, -003, and -100)

    The FAA is adopting a new airworthiness directive (AD) for certain Avidyne Corporation (Avidyne) Primary Flight Displays (PFDs) (Part Numbers (P/Ns) 700-00006-000, -001, -002, -003, and -100) that are installed on airplanes. This AD requires a check of the maintenance records and inspection of the PFD (if necessary) t…

04 /  Type Certificate Data Sheets

FAA TCDS for CESSNA AIRCRAFT CO LC41-550FG

The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 1 match in the FAA catalog.

  • A00003SE Historical Rev 14 · 12/30/2005

    Columbia Aircraft Manufacturing

    Models: LC42-550FG, LC40-550FG, LC41-550FG, T240 + 1 more

06 /  Supplemental Type Certificates

Modifications approved for CESSNA AIRCRAFT CO LC41-550FG

148 STCs on file — every FAA-approved modification, alteration, or installation for this aircraft. STOL kits, avionics, fuel systems, floats, engine swaps, you name it.

  • 03/03/2026

    STC SA02511SE

    Installation of replacement fuel quantity indicator sending unit(s)

    CiES Inc.

  • 07/24/2025

    STC SA02511SE

    Installation of replacement fuel quantity indicator sending unit(s)

    CiES Inc.

  • 07/21/2025

    STC SA02511SE

    Installation of replacement fuel quantity indicator sending unit(s)

    CiES Inc.

  • 04/01/2025

    STC SA02738CH (PAGE 5)

    Installation of L-3 Communications Avionics Systems

    Acron Aviation Inc.

  • 04/01/2025

    STC SA04046CH Page 1

    Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500)

    Acron Aviation Inc.

  • 08/27/2024

    STC SA04837NY

    Installation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lights

    AeroLED's Holdings, LLC

  • 06/13/2024

    STC SA02511SE

    Installation of replacement fuel quantity indicator sending unit(s)

    CiES Inc.

  • 12/12/2022

    STC SA02738CH (PAGE 5)

    Installation of L-3 Communications Avionics Systems

    L3Harris Aviation Products Inc.

  • 12/12/2022

    STC SA04046CH Page 1

    Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500)

    L3Harris Aviation Products Inc.

  • 03/30/2022

    STC SA02444AK (PAGE 1)

    Approval of the L-3 Communications NGT 9000/9000R ADS-B system installed

    ADS-B Technologies LLC

  • 09/01/2021

    STC SA11174SC PAGE 1

    Installation of BendixKing by Honeywell KSN 770 and KSN 765 WAAS LPV approach capable nav/comm systems

    Honeywell International Inc (Bendix King)

  • 07/15/2021

    STC SA10822SC

    Installation of EFD1000 Primary Flight Display

    Aspen Avionics Inc.

  • 07/15/2021

    STC SA10822SC

    Installation of EFD1000 Primary Flight Display

    Aspen Avionics Inc.

  • 06/04/2020

    STC SA02268CH (PAGE 3)

    Installation of Airwolf Filter Corp. Air Oil Separator

    Airwolf Filter Corporation

  • 06/04/2020

    STC SA02268CH (PAGE 2)

    Installation of Airwolf Filter Corp. Air Oil Separator

    Airwolf Filter Corporation

  • 03/07/2020

    STC SA00079NY

    Installation of Airwolf remote mounted engine oil filter kit AFC-K008 on single and multi engine fixed wing light aircraft incorporating Teledyne Continental reciprocating engines …

    Airwolf Filter Corporation

  • 07/25/2019

    STC SA02636SE

    Installation of Garmin GPS 175 Navigation System and GNX 375 Navigation System with ADS-B In/Out Transponder.

    Garmin International Inc

  • 07/16/2019

    STC SA01861SE (PAGE 2)

    Fabrication and installation of Landing Light Controller

    Seaton Engineering Corp.

  • 07/16/2019

    STC SA01800SE (PG 2)

    Fabrication and installation of new or replacement of existing instrument panel lights dimmer control.

    Seaton Engineering Corp.

  • 07/11/2019

    STC SA03286CH

    Install an electronic engine ignition system

    Electroair Acquisition Corporation

  • 07/11/2019

    STC SA04032CH

    Install rocker switch assemblies

    Electroair Acquisition Corporation

  • 06/19/2019

    STC SA00344BO PAGE 1

    Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights.

    Whelen Aerospace Technologies

  • 05/24/2019

    STC SA02019SE-D (1 OF 3)

    Installation of Garmin GTN 6XX/7XX Navigation System

    Garmin International Inc

  • 05/24/2019

    STC SA02019SE-D (1 OF 2)

    Installation of Garmin GTN 6XX/7XX Navigation System

    Garmin International Inc

  • 05/24/2019

    STC SA02019SE-D (3 OF 3)

    Installation of Garmin GTN 6XX/7XX Navigation System

    Garmin International Inc

  • 02/06/2019

    STC SA01714WI (PAGE 2)

    Installation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R wit…

    Garmin International Inc

  • 12/12/2018

    STC SA02511SE

    Installation of replacement fuel quantity indicator sending unit(s)

    CiES Inc.

  • 10/22/2018

    STC SA02511SE

    Installation of replacement fuel quantity indicator sending unit(s)

    CiES Inc.

  • 06/11/2018

    STC SA02013CH

    Installation of Avidyne Corporation Traffic Advisory System (TAS)

    Avidyne Corporation

  • 04/19/2018

    STC SA02511SE

    Installation of replacement fuel quantity indicator sending unit(s)

    CiES Inc.

+ 118 more STCs on file

07 /  PMA replacement parts

FAA-approved replacement parts for CESSNA AIRCRAFT CO LC41-550FG

8 parts on file from the FAA Parts Manufacturer Approval database. Each is a non-OEM part the FAA has authorized for use as a replacement on this aircraft type.

  • KATS-11-008#https://drs.faa.gov/browse/excelExternalWindow/FEE00170905DAA3B86257A8C0050BDD4.0001##

    Oil Cooler Door

    Kelly Aerospace Thermal Systems, LLC replaces Modification Part

    PMA holder →
  • KATS-11-006#https://drs.faa.gov/browse/excelExternalWindow/56E1D90C7EED7AA186257A8C0050BDD7.0001##

    Heat Exchanger

    Kelly Aerospace Thermal Systems, LLC replaces Modification Part

    PMA holder →
  • NCK-04-005#https://drs.faa.gov/browse/excelExternalWindow/F96F9AE3F07BB40E862576150060034E.0001##

    Columbia 400 Wing Deice Without Factory Installed Electric Air Conditioning Kit

    Kelly Aerospace Thermal Systems, LLC replaces Modification Part

    PMA holder →
  • KATS-07-009#https://drs.faa.gov/browse/excelExternalWindow/42C0A3D87D60B749862576150060038E.0001##

    Columbia 400 Wing Deice With Factory Installed Electric Air Conditioning Kit

    Kelly Aerospace Thermal Systems, LLC replaces Modification Part

    PMA holder →
  • KATS-09-003#https://drs.faa.gov/browse/excelExternalWindow/6C3966B6392318A38625760800644993.0001##

    C350/C400 Mechanical to Electrical Air Conditioning System Upgrade Kit

    Kelly Aerospace Thermal Systems, LLC replaces Modification Part

    PMA holder →
  • NCK-04-005#https://drs.faa.gov/browse/excelExternalWindow/49ED0A0B70B86728862573AA005F1B4B.0001##

    Airframe De-icing Kit

    Kelly Aerospace Thermal Systems, LLC replaces Modification Part

    PMA holder →
  • NCK-05-002#https://drs.faa.gov/browse/excelExternalWindow/7C0DDD43333C57A3862573AA005F1BCF.0001##

    Propeller De-Icing Kit

    Kelly Aerospace Thermal Systems, LLC replaces Modification Part

    PMA holder →
  • NCK-04-005#https://drs.faa.gov/browse/excelExternalWindow/F5B56677978BBA688625716100486E98.0001##

    Airframe De-icing Kit

    Kelly Aerospace Thermal Systems, LLC replaces Modification Part

    PMA holder →

05 /  Aircraft of this type

All 144 registered N-numbers

Every tail currently on the FAA registry for this make/model. Click an N-number to query the FAA Aircraft Inquiry; rows flagged have NTSB events on file. Tails seeded with full TallyAero pages link directly.

144 of 144
N-number St Year NTSB FAA
N10222 FL 2009 Look up ↗
N10332 CA 2009 · Look up ↗
N1036P GA 2009 · Look up ↗
N103PF MO 2008 · Look up ↗
N10580 CO Look up ↗
N10582 DE · Look up ↗
N1058Z DE 2008 · Look up ↗
N1087T TX 2008 · Look up ↗
N1131V FL 2008 · Look up ↗
N1133G TX 2009 · Look up ↗
N1134N MT 2009 · Look up ↗
N11390 UT 2009 Look up ↗
N1141Y ID 2009 · Look up ↗
N1143Z DE 2008 Look up ↗
N1159Q CO 2008 · Look up ↗
N116FT IL 2008 · Look up ↗
N1198Z FL Look up ↗
N119PE SD · Look up ↗
N1211D TX 2008 Look up ↗
N1229V OH 2008 Look up ↗
N1239Z DE 2009 · Look up ↗
N1253Y MO 2009 Look up ↗
N125BT NM 2009 · Look up ↗
N1274X TX 2008 Look up ↗
N1276Z GA 2009 · Look up ↗
N1282M WA 2008 · Look up ↗
N1285V CA 2008 · Look up ↗
N1287D DE 2009 · Look up ↗
N1288N KS 2008 · Look up ↗
N1291N NV 2009 Look up ↗
N1297E GA 2008 · Look up ↗
N1299H MT 2008 · Look up ↗
N1299K DE 2008 · Look up ↗
N13106 NC 2008 · Look up ↗
N135TT NM 2010 · Look up ↗
N136TT MO 2010 · Look up ↗
N13HE MI 2008 · Look up ↗
N142KM TX 2008 · Look up ↗
N143TT CA 2010 · Look up ↗
N149LB MS 2008 · Look up ↗
N157TT SC 2010 · Look up ↗
N158TA LA 2008 · Look up ↗
N160MC DE 2010 · Look up ↗
N161MC TX 2008 · Look up ↗
N166TT FL 2010 · Look up ↗
N169SW TN 2009 · Look up ↗
N176JM MI 2008 · Look up ↗
N212CJ AL 2008 · Look up ↗
N235DT CA · Look up ↗
N235JA NJ 2008 · Look up ↗
N240CA DE 2010 · Look up ↗
N247MC FL 2008 · Look up ↗
N25NH CO 2008 · Look up ↗
N309JL LA 2008 · Look up ↗
N33HE TX 2008 · Look up ↗
N33TP DE 2008 · Look up ↗
N347CA MI · Look up ↗
N351KA DE 2008 · Look up ↗
N373DF CA 2008 · Look up ↗
N37SR OR 2008 · Look up ↗
N384AD AZ 2008 · Look up ↗
N400BA IN 2008 · Look up ↗
N400BU OK 2008 · Look up ↗
N400EA MN 2008 · Look up ↗
N400FA OR 2008 Look up ↗
N400FN TX 2008 · Look up ↗
N400KG TX 2008 · Look up ↗
N400LX NV · Look up ↗
N400ML DE 2008 · Look up ↗
N400PL TX 2008 · Look up ↗
N403JA KS 2008 · Look up ↗
N403KH CA 2008 · Look up ↗
N403MC TX 2009 · Look up ↗
N404JA TX 2008 · Look up ↗
N404MJ IL 2008 · Look up ↗
N405TW PA 2008 · Look up ↗
N408AB CA · Look up ↗
N409HA DE 2008 · Look up ↗
N40BZ KS 2008 · Look up ↗
N410TW TX 2008 · Look up ↗
N411BN CA 2009 · Look up ↗
N422TJ DE 2008 · Look up ↗
N427PA FL 2008 Look up ↗
N428X CA 2008 · Look up ↗
N432JA CA 2008 · Look up ↗
N43TT FL 2009 · Look up ↗
N440TM IL 2008 · Look up ↗
N450K CA 2008 · Look up ↗
N450TF KY 2008 · Look up ↗
N454MC NC 2008 · Look up ↗
N455MC SC 2009 · Look up ↗
N465HC UT 2009 · Look up ↗
N4777D MT Look up ↗
N477MT SD 2008 · Look up ↗
N478AB DE 2009 · Look up ↗
N497BC MD 2010 · Look up ↗
N499RA NV 2008 · Look up ↗
N501AR TX 2008 · Look up ↗
N510ML SC 2008 · Look up ↗
N512RP TX 2008 · Look up ↗
N517X OH 2008 · Look up ↗
N5194C FL 2008 · Look up ↗
N5194Y CO 2008 Look up ↗
N5195L GA 2008 Look up ↗
N51KJ CA 2008 · Look up ↗
N522RH TX 2008 · Look up ↗
N524TG KS 2008 · Look up ↗
N554Z NC 2008 Look up ↗
N56MB FL 2008 Look up ↗
N577ST GA 2008 · Look up ↗
N581GL NC 2009 · Look up ↗
N588PF GA 2009 · Look up ↗
N617SS OH 2009 · Look up ↗
N619VB NJ 2008 · Look up ↗
N620VB TX 2008 · Look up ↗
N660BA LA 2008 · Look up ↗
N667AF TX 2008 · Look up ↗
N66NS CA 2009 · Look up ↗
N679JD MA · Look up ↗
N68LP NC 2008 · Look up ↗
N6AA NH 2008 · Look up ↗
N6WT MT · Look up ↗
N714JM CO 2008 · Look up ↗
N725EA TX 2008 · Look up ↗
N762CS CA · Look up ↗
N765SM CA 2008 · Look up ↗
N7711Y FL 2008 · Look up ↗
N774BW FL 2008 · Look up ↗
N7772A ME 2008 · Look up ↗
N78JE KS 2008 Look up ↗
N816SF UT 2008 · Look up ↗
N85EA SC 2008 · Look up ↗
N86DE NY 2008 · Look up ↗
N86LP CA 2008 · Look up ↗
N89KC NV 2009 · Look up ↗
N910ML MD 2008 · Look up ↗
N912AV CA 2008 · Look up ↗
N915ML NC 2008 · Look up ↗
N928PC LA 2008 · Look up ↗
N932AC SC 2008 Look up ↗
N969AB SC 2008 · Look up ↗
N98UT WA 2008 · Look up ↗
N99MM FL 2008 · Look up ↗
N99VL NC 2009 · Look up ↗

Source — FAA Aircraft Registry · click "Look up" to query the live registry record (owner, address, last airworthiness)

05 /  Sources & Methodology

Every count traces back to a primary US-government source

We render counts and lists as the agency publishes them. Read the methodology →