Fixed Wing Single Engine · CONT MOTOR IO 520 SERIES · as of Sep 21, 2026
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Distribution · currently registered
By state (top 10)
- TX 9.7% 3
- FL 9.7% 3
- CA 6.5% 2
- WA 6.5% 2
- AR 3.2% 1
- UT 3.2% 1
- OH 3.2% 1
- IN 3.2% 1
- NE 3.2% 1
- MT 3.2% 1
+15 more states
By decade of manufacture
- 1960s 90.3% 28
- Unknown 9.7% 3
NTSB records
12 event(s) on file. Showing the most recent 12.
- Mar 16, 2025 N4672F Frankston, Texas NTSB docket ↗
- Aug 15, 1999 N4605F CORDOVA, Alaska NTSB docket ↗
- Jul 18, 1994 N4685F ANCHORAGE, Alaska NTSB docket ↗
- Jan 23, 1991 N4626F CLEVELAND, Ohio Minor NTSB docket ↗
- May 12, 1986 N4626F WELLSBORO, Pennsylvania NTSB docket ↗
- Dec 15, 1983 N4648F CHARLESTON, South Carolina NTSB docket ↗
- Jan 5, 1976 N2674X ILIAMNA, Alaska NTSB docket ↗
- Mar 11, 1975 N4658F MACON, Missouri NTSB docket ↗
- Nov 4, 1972 N2690X SPRINGFIELD, Missouri NTSB docket ↗
- Sep 5, 1971 N4644F RICHMOND, Missouri NTSB docket ↗
- Nov 4, 1967 N2677X GRACE, Idaho NTSB docket ↗
- Oct 19, 1966 N4644F CLEAR LAKE, Iowa Minor NTSB docket ↗
Airworthiness directives
26 directive(s) on file. Showing the most recent 25 · 1 more in the Federal Register.
- 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…
- Oct 7, 2020
Airworthiness Directives; Textron Aviation Inc. Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain Textron Aviation Inc. (Textron) Model 172N, 172P, 172Q, 172RG, F172N, F172P, FR172K, R172K, 182E, 182F, 182G, 182H, 182J, 182K, 182L, 182M, 182N, 182P, 182Q, 182R, T182, F182P, F182Q, FR182, R182, TR182, 206, P206, P206A, P206B, P206C, P206D, P206E, TP…
- 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…
- May 29, 2020
Airworthiness Directives; Textron Aviation Inc. Airplanes
The FAA is revising an earlier proposal for certain Textron Aviation Inc. (Textron) Model 172N, 172P, 172Q, 172RG, F172N, F172P, FR172K, R172K, 182E, 182F, 182G, 182H, 182J, 182K, 182L, 182M, 182N, 182P, 182Q, 182R, T182, F182P, F182Q, F182RG, R182, TR182, 206, P206/ TP206, U206/TU206, 207/T207, 210-5 (205), 210-5A (2…
- 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…
- May 13, 2011
Airworthiness Directives; Cessna Aircraft Company Models 150, 152, 170, 172, 175, 177, 180, 182, 185, 188, 190, 195, 206, 207, 210, T303, 336, and 337 Airplanes
We are superseding an existing airworthiness directive (AD) for Cessna Aircraft Company (Cessna) 150, 152, 170, 172, 175, 177, 180, 182, 185, 188, 190, 195, 206, 207, 210, T303, 336, and 337 series airplanes. That AD currently requires repetitive inspections and replacement of parts, if necessary, of the seat rail and…
- Nov 8, 2010
Airworthiness Directives; Cessna Aircraft Company Models 150, 152, 170, 172, 175, 177, 180, 182, 185, 188, 190, 195, 206, 207, 210, T303, 336, and 337 Airplanes
We propose to supersede Airworthiness Directive (AD) 87-20-03 R2, which applies to certain Cessna Aircraft Company (Cessna) 150, 152, 170, 172, 175, 177, 180, 182, 185, 188, 190, 195, 206, 207, 210, T303, 336, and 337 series airplanes. AD 87-20-03 R2 currently requires repetitive inspections and replacement of parts,…
- Dec 24, 2008
Airworthiness Directives; Cessna Aircraft Company 172, 175, 177, 180, 182, 185, 188, 206, 207, 208, 210, 303, 336, and 337 Series Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) 172, 175, 177, 180, 182, 185, 188, 206, 207, 208, 210, 303, 336, and 337 series airplanes. This AD requires you to inspect the alternate static air source selector valve to assure that the part number identification pla…
- Feb 7, 2006
Airworthiness Directives; Aero Advantage ADV200 Series (Part Numbers ADV211CC and ADV212CW) Vacuum Pumps
The FAA adopts a new airworthiness directive (AD) for all airplanes equipped with Aero Advantage ADV200 series (part numbers ADV211CC and ADV212CW) vacuum pumps installed under supplemental type certificate number SA10126SC, through field approval, or other methods. This AD requires you to remove from service any affe…
- May 11, 2005
Airworthiness Directives; Aero Advantage ADV200 Series (Part Numbers ADVPL211CC and ADVPL212CW) Vacuum Pumps
The FAA proposes to adopt a new airworthiness directive (AD) for all airplanes equipped with Aero Advantage ADV200 series (part numbers ADVPL211CC and ADVPL212CW) vacuum pumps installed under supplemental type certificate number SA10126SC, through field approval, or other methods. This proposed AD would require you to…
- Jan 19, 2005
Airworthiness Directives; GARMIN International Inc. GTX 33, GTX 33D, GTX 330, and GTX 330D Mode S Transponders
The FAA is adopting a new airworthiness directive (AD) to supersede Airworthiness Directive 2004-10-15, which applies to certain GTX 330 and GTX 330D Mode S transponders that are installed on airplanes. AD 2004-10-15 currently requires you to install GTX 330/330D Software Upgrade Version 3.03, 3.04, or 3.05. This AD a…
- Oct 7, 2004
Airworthiness Directives; GARMIN International Inc. GTX 33, GTX 33D, GTX 330, and GTX 330D Mode S Transponders
The FAA proposes to supersede Airworthiness Directive (AD) 2004-10-15, which applies to certain GTX 330 and GTX 330D Mode S transponders that are installed on airplanes. AD 2004-10-15 currently requires you to install GTX 330/330D Software Upgrade Version 3.03, 3.04, or 3.05. This proposed AD applies to certain GTX 33…
- Sep 17, 2004
Airworthiness Directives; Cessna Aircraft Company 120, 140, 140A, 150, F150, 170, 172, F172, FR172, P172D, 175, 177, 180, 182, 185, A185E, 190, 195, 206, P206, U206, TP206, TU206, 207, T207, 210, T210, 336, 337, and T337 Series Airplanes
The FAA adopts a new airworthiness directive (AD) that will supersede AD 86-26-04, which applies to certain Cessna Aircraft Company (Cessna) 120, 140, 140A, 150, F150, 170, 172, F172, FR172, P172D, 175, 177, 180, 182, 185, A185E, 190, 195, 205, 205A, 206, P206, P206E, TP206A, TU206, TU206E, U206, U206E, 207, T207, 210…
- May 21, 2004
Airworthiness Directives; GARMIN International Inc. GTX 330 Mode S Transponders and GTX 330D Diversity Mode S Transponders
The FAA adopts a new airworthiness directive (AD) for certain GARMIN International Inc. GTX 330/GTX 330D Mode S transponders that are installed on aircraft. This AD requires you to install GTX 330/330D Software Upgrade Version 3.03, 3.04, or 3.05. This AD is the result of observations that the GTX 330 and GTX 330D may…
- Apr 20, 2004
Airworthiness Directives; Engine Components Incorporated (ECi) Reciprocating Engine Cylinders
The FAA is adopting a new airworthiness directive (AD) for Teledyne Continental Motors (TCM) models 520 and 550 series engines with certain ECi cylinders installed. This AD requires replacing certain serial-numbered (SN) cylinders supplied by ECi before further flight. This AD results from reports of 34 failures of cy…
- Feb 27, 2004
Airworthiness Directives; Cessna Aircraft Company 120, 140, 140A, 150, F150, 170, 172, F172, FR172, P172D, 175, 177, 180, 182, 185, A185E, 190, 195, 206, P206, U206, TP206, TU206, 207, T207, 210, T210, 336, 337, and T337 Series Airplanes
The FAA proposes to revise an earlier proposed airworthiness directive (AD) to supersede AD 86-26-04 that applies to certain Cessna Aircraft Company (Cessna) 120, 140, 140A, 150, F150, 170, 172, F172, FR172, P172D, 175, 177, 180, 182, 185, A185E, 190, 195, 205, 205A, 206, P206, P206E, TP206A, TU206, TU206E, U206, U206…
- Dec 30, 2003
Airworthiness Directives; GARMIN International Inc. GTX 330 Mode S Transponders and GTX 330D Diversity Mode S Transponders
The FAA proposes to adopt a new airworthiness directive (AD) for certain GARMIN International Inc. GTX 330/GTX 330D Mode S transponders. This proposed AD would require you to install GTX 330/ 330D Software Upgrade Version 3.03. This proposed AD is the result of observations that the GTX 330 and GTX 330D may detect, fr…
- Nov 13, 2003
Airworthiness Directives; Cessna Aircraft Company 120, 140, 140A, 150, F150, 170, 172, F172, FR172, P172D, 175, 177, 180, 182, 185, A185E, 190, 195, 206, P206, U206, TP206, TU206, 207, T207, 210, T210, 336, 337, and T337 Series Airplanes
The FAA proposes to supersede Airworthiness Directive (AD) 86- 26-04, which applies to certain Cessna Aircraft Company (Cessna) 120, 140, 140A, 150, F150, 170, 172, F172, FR172, P172D, 175, 177, 180, 182, 185, A185E, 190, 195, 205, 205A, 206, P206, P206E, TP206A, TU206, TU206E, U206, U206E, 207, T207, 210, T210, 336,…
- Mar 22, 2000
Airworthiness Directives; Cessna Aircraft Company 150, 152, 172, 177, 180, 182, 185, 188, 206, 207, 210, and 337 Series Airplanes
This amendment adopts a new airworthiness directive (AD) that applies to Cessna Aircraft Company (Cessna) 150, 152, 172, 177, 180, 182, 185, 188, 206, 207, 210, and 337 series airplanes. This AD requires measuring the visible length of standpipe (tube) in the top assembly of the fuel strainer assembly for the correct…
- Nov 30, 1999
Airworthiness Directives; Precise Flight, Inc. Model SVS III Standby Vacuum Systems
This amendment adopts a new airworthiness directive (AD) that applies to all aircraft equipped with Precise Flight, Inc. Model SVS III standby vacuum systems installed in accordance with the applicable supplemental type certificate (STC) or through field approval. This AD requires incorporating revised operating limit…
- Oct 29, 1999
Airworthiness Directives; Bob Fields Aerocessories Inflatable Door Seals
This document proposes to revise Airworthiness Directive (AD) 98-21-21, which currently requires de-activating the electric door seal inflation system for all aircraft equipped with Bob Fields Aerocessories inflatable door seals. Since issuance of that AD, the manufacturer has developed a modification that would allow…
- Jul 7, 1999
Airworthiness Directives; Precise Flight, Inc. Model SVS III Standby Vacuum Systems
This document proposes to adopt a new airworthiness directive (AD) that would apply to all U.S. owners and operators of aircraft equipped with Precise Flight, Inc. Model SVS III standby vacuum systems installed in accordance with the applicable supplemental type certificate (STC) or through field approval. The propose…
- Oct 15, 1998
Airworthiness Directives; Bob Fields Aerocessories Inflatable Door Seals
This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 98-21-21, which was sent previously to all known U.S. owners and operators of aircraft equipped with Bob Fields Aerocessories inflatable door seals installed in accordance with the applicable supplemental type certificat…
- Jul 22, 1998
Airworthiness Directives; Cessna Aircraft Company 150, 152, 172, 177, 180, 182, 185, 188, 206, 207, 210, and 337 Series Airplanes
This document proposes to adopt a new airworthiness directive (AD) that would apply to Cessna Aircraft Company (Cessna) Model 150, 152, 172, 177, 180, 182, 185, 188, 206, 207, 210, and 337 series airplanes. The proposed AD would require measuring the visible length of standpipe (tube) in the top assembly of the fuel s…
Type certificate data sheets · 1 match in the FAA catalog
- A4CE Cessna Aircraft Company Historical Rev 46 · 12/21/2007
Models: U206A, TU206A, U206C, U206F + 25 more
Supplemental type certificates · 648 on file
- 03/03/2026 STC SA02511SE Installation of replacement fuel quantity indicator sending unit(s) CiES Inc. DRS ↗
- 07/24/2025 STC SA02511SE Installation of replacement fuel quantity indicator sending unit(s) CiES Inc. DRS ↗
- 07/21/2025 STC SA02511SE Installation of replacement fuel quantity indicator sending unit(s) CiES Inc. DRS ↗
- 05/15/2025 STC SA02076AK Fabrication of left hand and right hand exhaust stack assemblies(P/N LEES1250256-3 and LEES1250257-3). Power Flow Systems Inc. DRS ↗
- 04/01/2025 STC SA02738CH (PAGE 5) Installation of L-3 Communications Avionics Systems Acron Aviation Inc. DRS ↗
- 04/01/2025 STC SA04046CH Page 1 Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500) Acron Aviation Inc. DRS ↗
- 12/13/2024 STC SA01330LA Installation of alternate avionics support assembly. Radiorax Aviation Systems LLC DRS ↗
- 11/20/2024 STC SA01120SE Installation of Door Steward. Mountain View Aviation LLC DRS ↗
- 10/23/2024 STC SA39CH Installation of an Amphibian Landing Gear Position Advisory System/Laser Gear Advisory System Wipaire Inc. DRS ↗
- 09/26/2024 STC SA02594SE SkyView HDX Instrumentation and Autopilot System manufactured Dynon Avionics DRS ↗
- 08/27/2024 STC SA04837NY Installation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lights AeroLED's Holdings, LLC DRS ↗
- 08/27/2024 STC SA02386AK Replacement of existing landing and/or taxi light reflector and bulbs with Light Emitting Diode (LED) lighting systems AeroLED's Holding LLC DRS ↗
- 06/13/2024 STC SA02511SE Installation of replacement fuel quantity indicator sending unit(s) CiES Inc. DRS ↗
- 11/17/2023 STC SA3462WE Installation of Knisley mufflers in lieu of original Cessna mufflers. Aerospace Welding Minneapolis Inc. DRS ↗
- 11/16/2023 STC SA02532AT Installation of subject Michelin tires on appropriate aircraft. For Michelin 5, 6, 8, and 10-inch rim diameter tires on General Aviation Aircraft. Michelin North America Inc. DRS ↗
- 04/05/2023 STC SA00756DE Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out Equipment using a Trig Avionics TT22 Transponder and an approved Global Positioning System (GPS) Position Se… Peregrine DRS ↗
- 04/04/2023 STC SA11137SC Installation of Plane-Power ALT-FLX alternator Hartzell Engine Technologies, LLC DRS ↗
- 02/09/2023 STC SA01606CH Installation of alternate electro-hydraulic power pack system for operation of main wheel skis. F.Atlee Dodge Aircraft Services DRS ↗
- 01/01/2023 STC SA00406WI Installation of replacement flap trailing edge bulbs with AOG Drawing Athena Aircraft, LLC DRS ↗
- 12/16/2022 STC SA990CE Install STOL kits (wing leading edge cuffs, drooped tips, and stall fences) Curry Aviation LLC DRS ↗
- 12/16/2022 STC SA2521CE Installation of replacement wing tips. Curry Aviation LLC DRS ↗
- 12/16/2022 STC SA2488CE Establishes the compatibility to install the flap actuated aileron droop system Curry Aviation LLC DRS ↗
- 12/12/2022 STC SA02738CH (PAGE 5) Installation of L-3 Communications Avionics Systems L3Harris Aviation Products Inc. DRS ↗
- 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. DRS ↗
- 10/12/2022 STC SA02594SE SkyView HDX Instrumentation and Autopilot System manufactured Dynon Avionics DRS ↗
- 09/21/2022 STC SA02507AT-D Installation of Teledyne Continental Motors IO-550-N engine and Hartzell PHC-J3YF-1RF/F8068( ) propeller. Summit Aviation Inc DRS ↗
- 07/06/2022 STC SA02203AK (PAGE 2) Installation of FlightLogic Synthetic Vision Electronic Flight Information System (EFIS-SV). Genesys Aerosystems Inc. DRS ↗
- 06/06/2022 STC SA02203AK (PAGE 2) Installation of FlightLogic Synthetic Vision Electronic Flight Information System (EFIS-SV). Genesys Aerosystems Inc. DRS ↗
- 03/30/2022 STC SA02444AK (PAGE 1) Approval of the L-3 Communications NGT 9000/9000R ADS-B system installed ADS-B Technologies LLC DRS ↗
- 10/25/2021 STC SA2123NM Installation of Lycoming TIO-540-J2BD engine AiResearch Model THO8A60 Turbocharger, Hartzell HC-C3YR-1RF/F7854 (Three-Blade) propeller, Hartzell Model F4-13 Governor and associated… PSA Commerce & Services LLC DRS ↗
+ 618 more STCs on file
PMA replacement parts · 4 on file
- 21293001#https://drs.faa.gov/browse/excelExternalWindow/F8A6A034A6B9D4FC862582C9006EA719.0001## Installation of a Continental Motors I0-550-N Engine. Summit Aviation replaces Modification Part
- 21293001#https://drs.faa.gov/browse/excelExternalWindow/4DBCC74A343CE372862578C6004BEA0E.0001## Components to support installation of a Teledyne Continental Motors IO-550-N engine and Hartzell PHC-J3YF-1RF/F8068() propeller Atlantic Aero, Inc. replaces Atlantic Aero P/N 21293001
- 07717-13#https://drs.faa.gov/browse/excelExternalWindow/CD0A8C991B89079C862574CD005750A8.0001## Body Fairing - Rear Knots 2U Ltd replaces Modification Part
- 07717-11#https://drs.faa.gov/browse/excelExternalWindow/6EB8B71C8F4129FD862574CD00575045.0001## Body Fairing - Forward Knots 2U Ltd replaces Modification Part
Advisory circulars & Federal Register
Advisory circulars
No ACs explicitly mention this type. Showing universal operating-rule ACs that apply to all aircraft.
Recent Federal Register · Parts 91 & 43
- 2026-09-14 Use of Certain Restricted Category Aircraft for the Transport of Firefighters for Wildfire Suppression FR ↗
- 2026-07-31 Requirements for Interference-Tolerant Radio Altimeter Systems FR ↗
- 2026-07-02 Enabling Supersonic Overland Flight FR ↗
- 2026-07-01 Mechanic Certification: Inspection Rating and Recent Experience Requirements FR ↗
- 2026-06-30 Designation-Restrict the Operation of Unmanned Aircraft in Close Proximity to a Fixed Site Facility; Extension of Comment Period FR ↗
Registered N-numbers · 31
| N-number | St | Year | NTSB | FAA |
|---|---|---|---|---|
| N146FC | AR | 1966 | · | Look up ↗ |
| N206TX | UT | — | · | Look up ↗ |
| N2669X | OH | 1965 | · | Look up ↗ |
| N2674X | IN | 1966 | ● | Look up ↗ |
| N2677X | TX | 1965 | ● | Look up ↗ |
| N2678X | TX | 1965 | · | Look up ↗ |
| N2681X | FL | 1965 | · | Look up ↗ |
| N2690X | NE | — | ● | Look up ↗ |
| N2699X | MT | 1966 | · | Look up ↗ |
| N4444T | OK | 1966 | · | Look up ↗ |
| N4605F | FL | 1966 | ● | Look up ↗ |
| N4608F | FL | 1966 | · | Look up ↗ |
| N4611F | IL | 1966 | · | Look up ↗ |
| N4626F | MD | 1966 | ● | Look up ↗ |
| N4629F | GA | 1966 | · | Look up ↗ |
| N4634F | NY | 1966 | · | Look up ↗ |
| N4638F | CA | 1966 | · | Look up ↗ |
| N4640F | WA | 1966 | · | Look up ↗ |
| N4644F | SC | 1966 | ● | Look up ↗ |
| N4648F | AL | 1966 | ● | Look up ↗ |
| N4656F | OR | 1966 | · | Look up ↗ |
| N4657F | VT | — | · | Look up ↗ |
| N4658F | NV | 1966 | ● | Look up ↗ |
| N4672F | TX | 1966 | ● | Look up ↗ |
| N4673F | VA | 1966 | · | Look up ↗ |
| N4678F | TN | 1966 | · | Look up ↗ |
| N4681F | CA | 1966 | · | Look up ↗ |
| N4685F | MI | 1966 | ● | Look up ↗ |
| N4699F | ID | 1966 | · | Look up ↗ |
| N4700F | WA | 1966 | · | Look up ↗ |
| N648DW | LA | 1966 | · | Look up ↗ |
Source — FAA Aircraft Registry
Sources
- FAA Aircraft Registry ↗ Refreshed Apr 27, 2026 Available
- NTSB CAROL ↗ Refreshed Jun 10, 2026 Available
- Federal Register (FAA Airworthiness Directives) ↗ Refreshed Apr 27, 2026 Available