Type Record · As of May 3, 2026
AERO COMMANDER 520
Fixed Wing Multi Engine · LYCOMING GO-435C&D SER
Registered
12
Year Range
1952–1954
NTSB Events
2
Airworthiness Directives
20
Aircraft Resources
01 / Distribution
Where the fleet lives and was built
Counts of currently-registered AERO COMMANDER 520 aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.
By State (top 10)
- CA 16.7% 2
- FL 16.7% 2
- OK 16.7% 2
- TX 8.3% 1
- SC 8.3% 1
- UT 8.3% 1
- ND 8.3% 1
- WA 8.3% 1
- MI 8.3% 1
By Decade of Manufacture
- 1950s 75.0% 9
- Unknown 25.0% 3
02 / NTSB Records
Events involving AERO COMMANDER 520 aircraft
2 event(s) on file. Showing the most recent 2.
-
Apr 25, 1973
N4131BSTAN C, Other Foreign
NTSB Docket → -
Nov 17, 1965
N264RWOKLAHOMA CITY, Oklahoma
NTSB Docket →
02b / NASA ASRS Reports
Near-miss reports involving AERO COMMANDER 520
NASA's voluntary, confidential reporting system surfaces what almost went wrong. 3 de-identified ASRS reports reference this airframe. Pilot-written narrative. ASRS reports are voluntary and not investigated — they represent the reporter's perspective and cannot infer prevalence.
- ACN 1961081 Commuter and GA Icing Incidents
AC50 pilot reported a runway excursion resulted during landing roll out due to runway icing.
Aero Commander 500 Series
- ACN 2272560 Non-Tower Airport Incidents
Aero Commander 500 pilot reported left engine failed during initial climb. Pilot landed safely and discovered post-flight left engine fuel shutoff switch was in the off position.
Aero Commander 500 Series
- ACN 2022593 Runway Incursions
Pilot crossing a runway at a non-towered airport reported a near collision with another aircraft taking off on the same runway.
Aero Commander 695
03 / Airworthiness Directives
FAA directives applicable to AERO COMMANDER 520
20 directive(s) on file. Showing the most recent 20.
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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…
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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…
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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…
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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…
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Sep 22, 2009
Airworthiness Directives; Teledyne Continental Motors O-470, IO-470, TSIO-470, IO-520, TSIO-520, IO-550, and IOF-550 Series Reciprocating Engines
The FAA is adopting a new airworthiness directive (AD) for Teledyne Continental Motors (TCM) O-470, IO-470, TSIO-470, IO-520, TSIO-520, IO-550, and IOF-550 series reciprocating engines with TCM EQ3 cylinders installed. This AD requires initial and repetitive visual inspections of TCM EQ3 cylinders for cracks. This AD…
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Apr 2, 2007
Airworthiness Directives; Superior Air Parts, Inc. (SAP), Cylinder Assemblies Part Numbers Series: SA47000L, SA47000S, SA52000, SA55000, SL32000W, SL32000WH, SL32006W, SL36000TW, SL36000W, and SL36006W
The FAA is revising an existing airworthiness directive (AD) for certain SAP cylinder assemblies installed in Teledyne Continental Motors (TCM) 470, 520, and 550 series reciprocating engines, Lycoming Engines (LE) 320, 360, and 540 series reciprocating engines, Avco Lycoming (AL) 540 series reciprocating engines, and…
-
Mar 12, 2007
Airworthiness Directives; Teledyne Continental Motors GTSIO-520 Series Reciprocating Engines
The FAA is superseding an existing airworthiness directive (AD) for Teledyne Continental Motors (TCM) GTSIO-520 series reciprocating engines. That AD currently requires initial and repetitive visual inspections of the starter adapter assembly and crankshaft gear and unscheduled visual inspections of the starter adapte…
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Feb 23, 2007
Airworthiness Directives; Superior Air Parts, Inc. (SAP), Cast Cylinder Assemblies Part Numbers Series: SA47000L, SA47000S, SA52000, SA55000, SL32000W, SL32000WH, SL32006W, SL36000TW, SL36000W, and SL36006W
The FAA is adopting a new airworthiness directive (AD) for certain SAP cast cylinder assemblies installed in Teledyne Continental Motors (TCM) 470, 520, and 550 series reciprocating engines, Lycoming Engines (LE) 320, 360, and 540 series reciprocating engines, Avco Lycoming (AL) 540 series reciprocating engines, and S…
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Oct 26, 2006
Airworthiness Directives; Teledyne Continental Motors GTSIO-520 Series Reciprocating Engines
The FAA proposes to supersede an existing airworthiness directive (AD) for Teledyne Continental Motors (TCM) GTSIO-520 series reciprocating engines. That AD currently requires initial and repetitive visual inspections of the starter adapter assembly and crankshaft gear and unscheduled visual inspections of the starter…
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Sep 27, 2005
Airworthiness Directives; Teledyne Continental Motors GTSIO-520 Series Reciprocating Engines
The FAA is adopting a new airworthiness directive (AD) for Teledyne Continental Motors (TCM) GTSIO-520 series reciprocating engines. This AD requires initial and repetitive visual inspections of the starter adapter assembly and crankshaft gear. This AD also requires unscheduled visual inspections of the starter adapte…
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Apr 6, 2005
Airworthiness Directives; Teledyne Continental Motors GTSIO-520 Series Reciprocating Engines
The FAA proposes to adopt a new airworthiness directive (AD) for Teledyne Continental Motors (TCM) GTSIO-520 series reciprocating engines. This proposed AD would require initial and repetitive visual inspections of the starter adapter assembly and crankshaft gear. This proposed AD would also require unscheduled visual…
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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…
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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…
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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…
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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…
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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…
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Jun 26, 2003
Airworthiness Directives; Hartzell Propeller Inc. ( )HC-( )(2,3)(X,V)( )-( ) Series and HA-A2V20-1B Series Propellers with Aluminum Blades
This amendment revises an existing airworthiness directive (AD), that is applicable to Hartzell Propeller Inc. ( )HC-( )(2,3)(X,V)( )-( ) series and HA-A2V20-1B series propellers with aluminum blades. That AD currently requires initial and repetitive dye penetrant and eddy current inspections of the blade and an optic…
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Jan 2, 2003
Airworthiness Directives; Hartzell Propeller Inc. ( )HC-( )(2,3)(X,V)( )-( ) Series and HA-A2V20-1B Series Propellers with Aluminum Blades
The Federal Aviation Administration (FAA) proposes to revise an existing airworthiness directive (AD), applicable to Hartzell Propeller Inc. ( )HC-( )(2,3)(X,V)( )-( ) series and HA-A2V20-1B series propellers with aluminum blades. That AD currently requires initial and repetitive dye penetrant and eddy current inspect…
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Aug 27, 1997
Airworthiness Directives; Hartzell Propeller Inc. ( )HC-( )(2,3)(X,V)( )-( ) Series and HA-A2V20-1B Series Propellers With Aluminum Blades
This amendment supersedes four existing airworthiness directives (ADs), applicable to Hartzell Propeller Inc. ( )HC-( )(2,3)(X,V)( )-( ) series propellers with aluminum blades, that currently require inspections for cracks in blade shanks and clamps. This amendment requires initial and repetitive dye penetrant and edd…
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Jun 17, 1996
Airworthiness Directives; Cessna Aircraft Company Engine Oil Filter Adapter Assemblies Installed on Aircraft
This amendment adopts a new airworthiness directive (AD) that applies to Cessna Aircraft Company (Cessna) engine oil filter adapter assemblies installed on aircraft. This action requires inspecting the oil filter and adapter assembly (or torque putty, if installed) for oil leakage and proper installation of the adapte…
06 / Supplemental Type Certificates
Modifications approved for AERO COMMANDER 520
75 STCs on file — every FAA-approved modification, alteration, or installation for this aircraft. STOL kits, avionics, fuel systems, floats, engine swaps, you name it.
-
08/27/2024
STC SA04837NY
Installation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lights
AeroLED's Holdings, LLC
-
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
-
08/21/2024
STC SA01757WI
To allow the use of UL91 or UL94 (minimum) grade aviation fuel
Swift Fuels LLC
-
02/02/2024
STC SA02658SE (1 OF 2)
Installation of Garmin GI 275 Multi-Function Display System
Garmin International Inc.
-
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.
-
08/10/2023
STC SA02019WI
Installation of the Trig Avionics TX56, TX56A, TX57, or TX57A VHF Nav-Com Radio.
Peregrine
-
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
-
07/27/2022
STC SA01757WI
To allow the use of UL91 or UL94 (minimum) grade aviation fuel
Swift Fuels LLC
-
07/21/2021
STC SA02265SE
Installation of a camera housing
Airborne Sensor LLC
-
06/14/2021
STC SA02658SE (1 OF 2)
Installation of Garmin GI 275 Multi-Function Display System
Garmin International Inc
-
03/30/2021
STC SA02386AK
Replacement of existing landing and/or taxi light reflector and bulbs with Light Emitting Diode (LED) lighting systems
Aero LEDs LLC
-
01/12/2021
STC SA02426AK
Approval of the FreeFlight FDL-978-TX ADS-B system installed
FreeFlight Systems
-
07/27/2020
STC SA01831WI
To allow the use of UL91 (minimum) grade aviation fuel
Petersen Aviation Inc
-
01/13/2020
STC SA02658SE (1 OF 2)
Installation of Garmin GI 275 Multi-Function Display System
Garmin International Inc
-
09/09/2019
STC SA01714WI (1 OF 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
-
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
-
06/19/2019
STC SA800EA
Installation of Whelen Anti-Collision, Position, or Anti-Collision/Position Light System, and applicable associated power supplies
Whelen Aerospace Technologies
-
02/13/2019
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
-
02/11/2019
STC SA01831WI
To allow the use of UL91 (minimum) grade aviation fuel
ADI LLC
-
12/19/2018
STC SA00744DE
Installation of the Automatic Dependent Surveillance Broadcast (ADS-B) Out Equipment using a Trig Avionics TT31 Transponder and an approved position sensor
Peregrine
-
12/19/2018
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
-
12/19/2018
STC SA00765DE
Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out functionality using the BendixKing KT74 Transponder and qualified position sensor
Peregrine
-
09/13/2018
STC SA04165NY (Page 1)
Installation of Latitude Technologies Skynode S200 Satcom system must be performed
Latitude Technologies Corporation
-
07/12/2018
STC SA02503AK (Page 2)
Installation of AMSAFE State of the Art Restraint System (SOARS) inflatable restraints
AMSAFE Inc.
-
04/11/2018
STC SA01835WI
Installation of Trig Avionics TY-96 or TY-97 VHF Communications Radio
Peregrine
-
04/02/2018
STC SA800EA
Installation of Whelen Anti-Collision, Position, or Anti-Collision/Position Light System, and applicable associated power supplies
Whelen Engineering Co Inc
-
02/28/2018
STC SA00744DE
Installation of the Automatic Dependent Surveillance Broadcast (ADS-B) Out Equipment using a Trig Avionics TT31 Transponder and an approved position sensor
Peregrine
-
12/01/2017
STC SA00765DE
Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out functionality using the BendixKing KT74 Transponder and qualified position sensor
Peregrine
-
09/20/2017
STC SA2586NM
Installation of J.P. Instruments temperature monitoring systems.
J P Instruments
-
05/01/2017
STC SA02265SE
Installation of a camera housing
Airborne Sensor LLC
+ 45 more STCs on file
07 / PMA replacement parts
FAA-approved replacement parts for AERO COMMANDER 520
12 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.
-
21-775-8-1#https://drs.faa.gov/browse/excelExternalWindow/D11C6FAEF187304186257B48006FBCF5.0001##
Break-to- Tip De-icer, LH
UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Goodrich P/N 21-775-8-1
PMA holder → -
21-775-13-1#https://drs.faa.gov/browse/excelExternalWindow/AC626F456C30B2AA86257B48006FBD03.0001##
Light-to-Tip De-icer, LH
UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Goodrich P/N 21-775-13-1
PMA holder → -
21-775-8-2#https://drs.faa.gov/browse/excelExternalWindow/78DA34C02F68F97E86257B48006FBCF6.0001##
Break-to- Tip De-icer, RH
UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Goodrich P/N 21-775-8-2
PMA holder → -
21-775-13-1#https://drs.faa.gov/browse/excelExternalWindow/98FA17095FCD8B9B86257A990064D5DD.0001##
Light-to-Tip De-icer, LH
UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Goodrich P/N 21-775-13-1
PMA holder → -
21-775-8-1#https://drs.faa.gov/browse/excelExternalWindow/4C63A31EA48E2F4F86257A990064D5CC.0001##
Break-to- Tip De-icer, LH
UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Goodrich P/N 21-775-8-1
PMA holder → -
21-775-8-2#https://drs.faa.gov/browse/excelExternalWindow/01A8305EC5752FF686257A990064D5CF.0001##
Break-to- Tip De-icer, RH
UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Goodrich P/N 21-775-8-2
PMA holder → -
21-775-5-1#https://drs.faa.gov/browse/excelExternalWindow/14AE05CF33FBCE8786257B48006FBCEA.0001##
Vertical Fin De-icer
UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Goodrich P/N 21-775-5-1
PMA holder → -
21-775-5-1#https://drs.faa.gov/browse/excelExternalWindow/25575043B3C61B8386257A990064D5C6.0001##
Vertical Fin De-icer
UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Goodrich P/N 21-775-5-1
PMA holder → -
Installation Drawing No. 8909 & W-1990#https://drs.faa.gov/browse/excelExternalWindow/5BFBF30A2607769C8625734500568609.0001##
Winglet Tip Assembly
Commander-Aero, Inc replaces Modification Part
PMA holder → -
SMR2015-6-1#https://drs.faa.gov/browse/excelExternalWindow/EAD404D1A4DC71FA8625713A0071F06F.0001##
Pneumatic De-Icer Boot
B/E Aerospace Inc, DBA, SMR Technologies Inc replaces Goodrich P/N 23S-2015-6-1
PMA holder → -
SMR2015-2-2#https://drs.faa.gov/browse/excelExternalWindow/9E2FA22D2C52C5FA8625713A0071EFB8.0001##
Pneumatic De-Icer Boot
B/E Aerospace Inc, DBA, SMR Technologies Inc replaces Goodrich P/N 23S-2015-2-2
PMA holder → -
SMR2015-2-1#https://drs.faa.gov/browse/excelExternalWindow/11A34928F203D3998625713A0071EF80.0001##
Pneumatic De-Icer Boot
B/E Aerospace Inc, DBA, SMR Technologies Inc replaces Goodrich P/N 23S-2015-2-1
PMA holder →
04 / Regulations watching this type
Advisory Circulars and Federal Register activity for AERO COMMANDER 520
Advisory Circulars
No ACs explicitly mention this type. Showing universal operating-rule ACs that apply to all aircraft.
Recent Federal Register activity
Latest rulemakings touching general operating rules (Part 91) and maintenance rules (Part 43).
- 2026-04-17 Settlement Policy for Small Unmanned Aircraft System (UAS) Cases FR ↗
- 2026-02-10 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period; Denial of Extension FR ↗
- 2026-02-02 25-Hour Cockpit Voice Recorder (CVR) Requirement, New Aircraft Production FR ↗
- 2026-01-28 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period FR ↗
- 2026-01-07 Requirements for Interference-Tolerant Radio Altimeter Systems FR ↗
05 / Aircraft of this type
All 12 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.
| N-number | St | Year | NTSB | FAA |
|---|---|---|---|---|
| N11L | CA | 1953 | · | Look up ↗ |
| N19KD | CA | — | · | Look up ↗ |
| N264RW | TX | 1952 | ● | Look up ↗ |
| N411VV | SC | — | · | Look up ↗ |
| N4131B | FL | 1952 | ● | Look up ↗ |
| N4136B | UT | 1953 | · | Look up ↗ |
| N4142B | ND | 1953 | · | Look up ↗ |
| N4179B | OK | 1953 | · | Look up ↗ |
| N4189B | WA | 1953 | · | Look up ↗ |
| N520RN | MI | 1953 | · | Look up ↗ |
| N590W | OK | 1954 | · | Look up ↗ |
| N777VM | FL | — | · | 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
- FAA Aircraft Registry →
Refreshed Apr 27, 2026
Available
- NTSB CAROL →
Refreshed Apr 27, 2026
Available
- Federal Register (FAA Airworthiness Directives) →
Refreshed Apr 27, 2026
Available
We render counts and lists as the agency publishes them. Read the methodology →