Fixed Wing Multi Engine · CONT MOTOR IO 520 SERIES · as of Sep 21, 2026
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Distribution · currently registered
By state (top 10)
- TX 27.3% 3
- MT 18.2% 2
- CA 18.2% 2
- AZ 9.1% 1
- DE 9.1% 1
- MS 9.1% 1
- CO 9.1% 1
By decade of manufacture
- 1960s 83.3% 10
- Unknown 16.7% 2
NTSB records
2 event(s) on file. Showing the most recent 2.
- Jan 4, 1980 N6195Q LITTLE ROCK, Arkansas NTSB docket ↗
- Mar 16, 1972 N720L OMAHA, Nebraska NTSB docket ↗
Airworthiness directives
30 directive(s) on file. Showing the most recent 25 · 5 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…
- Jul 27, 2022
Airworthiness Directives; Various Airplanes, Helicopters, and Engines
The FAA proposes to adopt 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 proposed AD was prompted by multiple failures of spot-welded, multi-segment v-band couplings at 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…
- Aug 26, 2016
Airworthiness Directives; Textron Aviation, Inc. Airplanes
We are superseding Airworthiness Directive (AD) 2016-07-24 for all Textron Aviation, Inc. Models 310 through 310R, E310H, E310J, T310P through T310R, 310J-1, 320 through 320F, 320-1, 335, 340, 340A, 401 through 401B, 402 through 402C, 411, 411A, 414, 414A, and 421 through 421C airplanes (type certificates 3A10, 3A25,…
- Apr 11, 2016
Airworthiness Directives; Textron Aviation, Inc. Airplanes
We are adopting a new airworthiness directive (AD) for all Textron Aviation, Inc. Models 310 through 310R, E310H, E310J, T310P through T310R, 310J-1, 320 through 320F, 320-1, 335, 340, 340A, 401 through 401B, 402 through 402C, 411, 411A, 414, 414A, and 421 through 421C airplanes (type certificates 3A10, 3A25, and A7CE…
- Sep 9, 2005
Airworthiness Directives; Goodrich De-icing and Specialty Systems “FASTprop” Propeller De-icers
The FAA is adopting a new airworthiness directive (AD) for Goodrich De-icing and Specialty Systems "FASTprop" propeller de- icers, part numbers P4E1188 series, P4E1601 series, P4E2200 series, P4E2271-10, P4E2575-7, P4E2575-10, P4E2598-10, P5855BSW, P6199SW, P6592SW, P6662SW, and P6975-11, installed. This AD requires i…
- May 6, 2005
Airworthiness Directives; Kelly Aerospace Power Systems Part Number (P/N) 14D11, A14D11, B14D11, C14D11, 23D04, A23D04, B23D04, C23D04, or P23D04 Fuel Regulator Shutoff Valves (Formerly Owned by ElectroSystems, JanAero Devices, Janitrol, C&D Airmotive Products, FL Aerospace, and Midland-Ross Corporation)
The FAA is revising Airworthiness Directive (AD) 2004-25-16, which applies to aircraft equipped with a fuel regulator shutoff valve part number (P/N) 14D11, A14D11, B14D11, C14D11, 23D04, A23D04, B23D04, C23D04, or P23D04 used with B1500, B2030, B2500, B3040, B3500, B4050, or B4500 B-Series combustion heaters. AD 2004…
- Apr 6, 2005
Airworthiness Directives; Goodrich De-icing and Specialty Systems “FASTprop” Propeller De-icers
The FAA proposes to adopt a new airworthiness directive (AD) for Goodrich De-icing and Specialty Systems "FASTprop" propeller de- icers, part numbers P4E1188 series, P4E1601 series, P4E2200 series, P4E2271-10, P4E2575-7, P4E2575-10, P4E2598-10, P5855BSW, P6199SW, P6592SW, P6662SW, and P6975-11, installed. This propose…
- Mar 9, 2005
Airworthiness Directives; Kelly Aerospace Power Systems Part Number (P/N) 14D11, A14D11, B14D11, C14D11, 23D04, A23D04, B23D04, C23D04, or P23D04 Fuel Regulator Shutoff Valves (formerly owned by ElectroSystems, JanAero Devices, Janitrol, C&D Airmotive Products, FL Aerospace, and Midland-Ross Corporation)
The FAA proposes to revise Airworthiness Directive (AD) 2004- 25-16, which applies to aircraft equipped with a fuel regulator shutoff valve part number (P/N) 14D11, A14D11, B14D11, C14D11, 23D04, A23D04, B23D04, C23D04, or P23D04 used with B1500, B2030, B2500, B3040, B3500, B4050, or B4500 B-Series combustion heaters.…
- 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…
- Dec 16, 2004
Airworthiness Directives; Kelly Aerospace Power Systems Part Number (P/N) 14D11, A14D11, B14D11, C14D11, 23D04, A23D04, B23D04, C23D04, or P23D04 Fuel Regulator Shutoff Valves (Formerly Owned by ElectroSystems, JanAero Devices, Janitrol, C&D, FL Aerospace, and Midland-Ross Corporation)
The FAA is adopting a new airworthiness directive (AD) to supersede AD 2001-17-13, which applies to aircraft equipped with a Kelly Aerospace Power Systems (Kelly Aerospace) part number (P/N) 14D11, A14D11, B14D11, C14D11, 23D04, A23D04, B23D04, C23D04, or P23D04 fuel regulator shutoff valve used with Kelly Aerospace B…
- Oct 22, 2004
Airworthiness Directives; Kelly Aerospace Power Systems B-Series Combustion Heaters Models B1500, B2030, B2500, B3040, B3500, B4050, and B4500 (Formerly Owned by JanAero Devices, Janitrol, C&D, FL Aerospace, and Midland-Ross Corporation)
The FAA is superseding Airworthiness Directive (AD) 96-20-07, which applies to certain B-Series Combustion Heaters Models B1500, B2030, B3040, and B4050 that are installed on airplanes. AD 96-20-07 currently requires you to repetitively test (pressure decay) the combustion tube and overhaul any heater that does not pa…
- 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…
- 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…
- 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…
- Aug 22, 2001
Airworthiness Directives; JanAero Devices Part Number (P/N) 14D11, A14D11, B14D11, C14D11, 23D04, A23D04, B23D04, and C23D04 Fuel Regulator Shutoff Valves
This amendment supersedes Airworthiness Directive (AD) 2001- 08-01, which applies to certain JanAero Devices (JanAero) 14D11 and 23D04 series fuel regulator shutoff valves used with certain JanAero combustion heaters that are installed on aircraft. AD 2001-08-01 currently requires you to visually inspect and pressure…
- Apr 17, 2001
Airworthiness Directives; JanAero Devices 14D11 and 23D04 Series Fuel Regulator and Shutoff Valves
This amendment adopts a new airworthiness directive (AD) that applies to certain JanAero Devices (JanAero) fuel regulator and shutoff valves used with JanAero combustion heaters that are installed on airplanes. This AD requires you to visually inspect and pressure test for leaks, and, if leaks are found, replace the f…
- Jan 19, 2000
Airworthiness Directives; Cessna Aircraft Company 300 and 400 Series Airplanes
This amendment supersedes Airworthiness Directive (AD) 75-23- 08 R5, which currently requires repetitively inspecting and replacing or repairing the exhaust system on certain Cessna Aircraft Company (Cessna) 300 and 400 series airplanes. The requirements of this AD replace the inspections and replacements that are req…
- 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 6, 1999
Airworthiness Directives; Cessna Aircraft Company 300 and 400 Series Airplanes
This document proposes to supersede Airworthiness Directive (AD) 75-23-08 R5, which currently requires repetitively inspecting and replacing or repairing the exhaust system on certain Cessna Aircraft Company (Cessna) 300 and 400 series airplanes. The proposed AD would replace the inspections and replacements that are…
- Oct 22, 1998
Airworthiness Directives; Cessna Aircraft Company 310, T310, 320, 401, 402, 411, and 421 Series Airplanes
This document proposes to revise an earlier proposed airworthiness directive (AD) that would have applied to certain Cessna 310, T310, 320, 401, 402, 411, and 421 series airplanes. The previous document would have superseded AD 72-14-08 R1, which currently requires repetitively inspecting the fuel and oil flexible hos…
- 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…
- Dec 19, 1997
Airworthiness Directives; Teledyne Continental Motors IO-360, TSIO-360, LTSIO-360, IO-520, LIO-520, TSIO-520, LTSIO-520 Series, and Rolls-Royce plc IO-360 and TSIO-360 Series Reciprocating Engines
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Teledyne Continental Motors (TCM) IO-520 and TSIO-520 series reciprocating engines, that currently requires ultrasonic inspection for subsurface fatigue cracks in crankshafts installed in TCM IO-520 and TSIO-520 series engines an…
Type certificate data sheets · 1 match in the FAA catalog
- 3A25 Textron Aviation Inc. Historical Rev 27 · 10/19/2018
Models: 320, 320D, 320-1, 320B + 7 more
Supplemental type certificates · 379 on file
- 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 ↗
- 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 ↗
- 11/17/2023 STC SA00040LB Installation of a modified exhaust tail pipe. 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 ↗
- 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 ↗
- 07/06/2022 STC SA02203AK (PAGE 1) Installation of FlightLogic Synthetic Vision Electronic Flight Information System (EFIS-SV). Genesys Aerosystems Inc. DRS ↗
- 06/06/2022 STC SA02203AK (PAGE 1) 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 ↗
- 09/28/2021 STC SA01818WI Installation of Garmin G5 Electronic Flight Instrument Garmin International Inc. DRS ↗
- 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) DRS ↗
- 07/21/2021 STC SA02430SE Fabrication and installation of a camera housing Airborne Sensor LLC DRS ↗
- 07/15/2021 STC SA10822SC Installation of EFD1000 Primary Flight Display Aspen Avionics Inc. DRS ↗
- 07/15/2021 STC SA10822SC Installation of EFD1000 Primary Flight Display Aspen Avionics Inc. DRS ↗
- 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 DRS ↗
- 01/12/2021 STC SA02426AK Approval of the FreeFlight FDL-978-TX ADS-B system installed FreeFlight Systems DRS ↗
- 07/17/2020 STC SA10236SC (2 OF 4) Installation of a GDC 31 Roll Steering Converter DAC International Inc DRS ↗
- 06/04/2020 STC SA02268CH (PAGE 3) Installation of Airwolf Filter Corp. Air Oil Separator Airwolf Filter Corporation DRS ↗
- 06/04/2020 STC SA02268CH (PAGE 2) Installation of Airwolf Filter Corp. Air Oil Separator Airwolf Filter Corporation DRS ↗
- 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 DRS ↗
- 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 DRS ↗
- 07/19/2019 STC SA01818WI Installation of Garmin G5 Electronic Flight Instrument Garmin International Inc DRS ↗
- 07/16/2019 STC SA01861SE (PAGE 2) Fabrication and installation of Landing Light Controller Seaton Engineering Corp. DRS ↗
- 07/16/2019 STC SA01800SE (PG 2) Fabrication and installation of new or replacement of existing instrument panel lights dimmer control. Seaton Engineering Corp. DRS ↗
- 07/11/2019 STC SA03286CH Install an electronic engine ignition system Electroair Acquisition Corporation DRS ↗
- 07/11/2019 STC SA04032CH Install rocker switch assemblies Electroair Acquisition Corporation DRS ↗
- 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 DRS ↗
- 06/19/2019 STC SA00344BO PAGE 1 Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies DRS ↗
- 05/30/2019 STC SA615EA (PAGE 2) Installation of a Whelen Anti-Collision Strobe Light System as replacement for originally installed anti-collision lights. Whelen Aerospace Technologies DRS ↗
+ 349 more STCs on file
PMA replacement parts · 2 on file
- -#https://drs.faa.gov/browse/excelExternalWindow/B8DE7D5B4E03C7898625736800490882.0001## Installation of dual camera port, view finder hole, camera mount for RMKA 8.5/23 and RMKA 15/23, intervalometer, and auto-pilot servo relocation Ram Aircraft Limited Partnership replaces -
- 1001-3#https://drs.faa.gov/browse/excelExternalWindow/A2288B802634E2688625723C005D8B8C.0001## Slip Joint Assy. Ram Aircraft Limited Partnership replaces Cessna P/N 0850731-1
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 · 12
| N-number | St | Year | NTSB | FAA |
|---|---|---|---|---|
| N21MT | TX | 1967 | · | Look up ↗ |
| N241AR | TX | 1967 | · | Look up ↗ |
| N320FW | AZ | 1967 | · | Look up ↗ |
| N420WB | TX | — | · | Look up ↗ |
| N6151Q | DE | 1967 | · | Look up ↗ |
| N6156Q | MT | 1967 | · | Look up ↗ |
| N6184Q | MS | 1968 | · | Look up ↗ |
| N6193Q | CA | 1968 | · | Look up ↗ |
| N6195Q | MT | 1968 | ● | Look up ↗ |
| N720L | — | 1968 | ● | Look up ↗ |
| N951LE | CO | — | · | Look up ↗ |
| N999BS | CA | 1968 | · | 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