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)
- DE 7.1% 1
- AL 7.1% 1
- AK 7.1% 1
- IL 7.1% 1
- CA 7.1% 1
- WI 7.1% 1
- UT 7.1% 1
- OH 7.1% 1
- KS 7.1% 1
- ME 7.1% 1
+4 more states
By decade of manufacture
- 1960s 46.7% 7
- Unknown 53.3% 8
NTSB records
4 event(s) on file. Showing the most recent 4.
- Nov 18, 2025 N6255Q Eureka, North Carolina Minor NTSB docket ↗
- May 20, 1996 N701CJ GREAT BEND, Kansas NTSB docket ↗
- Sep 14, 1987 N6249Q WICHITA FALLS, Texas NTSB docket ↗
- Feb 16, 1970 N69RH TYLER, Texas NTSB docket ↗
Airworthiness directives
29 directive(s) on file. Showing the most recent 25 · 4 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…
- May 8, 2018
Airworthiness Directives; Textron Aviation Inc. Airplanes
We are revising Airworthiness Directive (AD) 2018-03-03 for certain Textron Aviation Inc. Models 401, 401A, 401B, 402, 402A, 402B, 402C, 411, 411A, 414, 414A, 421, 421A, 421B, 421C, and 425 airplanes. AD 2018-03-03 required repetitively inspecting the left and the right forward lower carry through spar cap for cracks…
- Feb 13, 2018
Airworthiness Directives; Textron Aviation Inc. Airplanes
We are adopting a new airworthiness directive (AD) for certain Textron Aviation Inc. Models 401, 401A, 401B, 402, 402A, 402B, 402C, 411, 411A, 414, 414A 421, 421A, 421B, 421C, and 425 airplanes. This AD requires repetitively inspecting the left and the right forward lower carry through spar cap for cracks and replacin…
- Feb 18, 2009
Airworthiness Directives; Cessna Aircraft Company Models 401, 401A, 401B, 402, 402A, and 402B Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) Models 401, 401A, 401B, 402, 402A, and 402B airplanes. This AD requires an inspection of the auxiliary wing spar near the location where the main landing gear trunnion is mounted for cracks; immediate replacement if cra…
- Oct 12, 2005
Airworthiness Directives; The Cessna Aircraft Company Models 401, 401A, 401B, 402, 402A, 402B, 402C, 404, 411, 411A, 414, 414A, 421, 421A, 421B, 421C, 425, and 441 Airplanes
The FAA adopts a new airworthiness directive (AD) for certain The Cessna Aircraft Company (Cessna) Models 401, 401A, 401B, 402, 402A, 402B, 402C, 404, 411, 411A, 414, 414A, 421, 421A, 421B, 421C, 425, and 441 airplanes equipped with certain avionics bus circuit breaker switches. This AD requires you to inspect the avi…
- 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…
- Jun 28, 2005
Airworthiness Directives; Cessna Aircraft Company Models 401, 401A, 401B, 402, 402A, 402B, 411, and 411A Airplanes
- Jun 14, 2005
Airworthiness Directives; Cessna Aircraft Company Models 402C and 414A Airplanes
The FAA is adopting a new airworthiness directive (AD) to supersede AD 2005-05-52 (70 FR 13362, March 21, 2005), which applies to all Cessna Aircraft Company (Cessna) Models 402C and 414A airplanes. AD 2005-05-52 currently requires you to eddy current inspect the forward wing spars and visually inspect the aft and aux…
- Jun 14, 2005
Airworthiness Directives; Cessna Aircraft Company Models 401, 401A, 401B, 402, 402A, 402B, 411, and 411A Airplanes
The FAA is adopting a new airworthiness directive (AD) to supersede AD 79-10-15, which applies to all Cessna Aircraft Company (Cessna) Models 401, 401A, 401B, 402, 402A, 402B, 411, and 411A airplanes. AD 79-10-15 currently requires repetitive inspections of the right and left wing spar lower cap areas for fatigue crac…
- Jun 9, 2005
Airworthiness Directives; The Cessna Aircraft Company Models 401, 401A, 401B, 402, 402A, 402B, 402C, 404, 411, 411A, 414, 414A, 421, 421A, 421B, 421C, 425, and 441 Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain The Cessna Aircraft Company (Cessna) Models 401, 401A, 401B, 402, 402A, 402B, 402C, 404, 411, 411A, 414, 414A, 421, 421A, 421B, 421C, 425, and 441 airplanes equipped with certain avionics bus circuit breaker switches. This proposed AD would requi…
- 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…
- 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…
- May 25, 2004
Airworthiness Directives; Cessna Aircraft Company Models 401, 401A, 401B, 402, 402A, 402B, 402C, 411, 411A, and 414A Airplanes
This document withdraws two notices of proposed rulemaking (NPRMs) that would have applied to Cessna Aircraft Company (Cessna) Models 401, 401A, 401B, 402, 402A, 402B, 402C, 411, 411A, and 414A airplanes. The proposed ADs would have superseded existing ADs and would have required you to repetitively inspect the wing s…
- 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…
- Jan 27, 2004
Airworthiness Directives; Cessna Aircraft Company Models 401, 401A, 401B, 402, 402A, 402B, 402C, 411, and 411A, and 414A Airplanes; Notice of Public Meeting
This document reopens the comment periods and announces a public meeting on the subject proposed airworthiness directives (ADs) that would apply to Cessna Aircraft Company (Cessna) Models 401, 401A, 401B, 402, 402A, 402B, 402C, 411, and 411A, and 414A airplanes. The proposed ADs would supersede existing ADs and would…
- 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…
- Oct 3, 2003
Airworthiness Directives; Cessna Aircraft Company Models 401, 401A, 401B, 402, 402A, 402B, 411, and 411A Airplanes
This document proposes to revise an earlier proposed airworthiness directive (AD) that would supersede Airworthiness Directive (AD) 79-10-15 R2, which applies to all Cessna Aircraft Company (Cessna) Models 401, 401A, 401B, 402, 402A, 402B, 411, and 411A airplanes. AD 79-10-15 R2 currently requires repetitive inspectio…
- Aug 1, 2003
Airworthiness Directives; Cessna Aircraft Company Models 401, 401A, 401B, 402, 402A, 402B, 411, and 411A Airplanes
This document provides additional time for the public to comment on a proposal to supersede Airworthiness Directive (AD) 79-10- 15 R2, which applies to all Cessna Aircraft Company (Cessna) Models 401, 401A, 401B, 402, 402A, 402B, 411, and 411A airplanes. AD 79-10-15 R2 currently requires repetitive inspections of the…
- May 15, 2003
Airworthiness Directives; Cessna Aircraft Company Models 401, 401A, 401B, 402, 402A, 402B, 411, and 411A Airplanes
This document proposes to supersede Airworthiness Directive (AD) 79-10-15 R2, which applies to all Cessna Aircraft Company (Cessna) Models 401, 401A, 401B, 402, 402A, 402B, 411, and 411A airplanes. AD 79-10-15 R2 currently requires repetitive inspections of the right and left wing spar lower cap areas for fatigue crac…
- May 15, 2003
Airworthiness Directives; Cessna Aircraft Company Models 402C and 414A Airplanes
This document proposes to supersede Airworthiness Directive (AD) 2000-23-01, which applies to all Cessna Aircraft Company (Cessna) Model 402C airplanes. AD 2000-23-01 currently requires repetitive inspections of the forward, aft, and auxiliary wing spars for cracks, and repair or replacement as necessary. Cessna has p…
- 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…
- 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…
- Nov 17, 1998
Airworthiness Directives; Parker Hannifan Airborne Dry Air Pumps, Conversion Kits, and Coupling Kits
This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 98-23-01, which was sent previously to all known U.S. owners and operators of aircraft and engines equipped with certain Parker Hannifin Airborne dry air pumps, conversion kits, and coupling kits, utilizing part number (…
Type certificate data sheets · 1 match in the FAA catalog
- A7CE Cessna Aircraft Company Historical Rev 46 · 11/24/2004
Models: 421C, 425, 402C, 402B + 12 more
Supplemental type certificates · 475 on file
- 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 ↗
- 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 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 ↗
- 07/06/2022 STC SA02203AK (PAGE 2) Installation of FlightLogic Synthetic Vision Electronic Flight Information System (EFIS-SV). Genesys Aerosystems Inc. DRS ↗
- 06/16/2022 STC SA02254AK Installation of "Single Screen", "2 or 3 Screen", "Dual Screen", or "4 or 6 screen" 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 ↗
- 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 ↗
- 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 ↗
- 07/28/2020 STC SA00024SE Installation of vortex generators on the wing and verticle tail, and strakes on the nacelles. Micro AeroDynamics Inc 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 ↗
- 07/16/2019 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 ↗
- 07/02/2019 STC SA2091WE Installation of air conditioning system Air Comm 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 ↗
+ 445 more STCs on file
PMA replacement parts · 3 on file
- 42-0353#https://drs.faa.gov/browse/excelExternalWindow/9AFE34CA0B3DAC3686257535004FC667.0001## Divan, LH 2 Place Aviation Fabricators Inc replaces Modification Part
- 42-0148#https://drs.faa.gov/browse/excelExternalWindow/4CFA606C882A956E86257535004FC638.0001## Divan, RH 1 Place Aviation Fabricators Inc replaces Modification Part
- 42-0143#https://drs.faa.gov/browse/excelExternalWindow/EC9ED3CAE24FB1F486257535004FC5FE.0001## Divan, RH 2 Place Aviation Fabricators Inc 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 · 15
| N-number | St | Year | NTSB | FAA |
|---|---|---|---|---|
| N101ME | DE | 1969 | · | Look up ↗ |
| N236ST | AL | 1968 | · | Look up ↗ |
| N35VC | AK | 1969 | · | Look up ↗ |
| N401AK | IL | — | · | Look up ↗ |
| N401CA | CA | 1969 | · | Look up ↗ |
| N6249Q | WI | 1969 | ● | Look up ↗ |
| N6255Q | UT | 1969 | ● | Look up ↗ |
| N695PG | — | — | · | Look up ↗ |
| N69RH | OH | — | ● | Look up ↗ |
| N701CJ | KS | 1968 | ● | Look up ↗ |
| N70SC | ME | — | · | Look up ↗ |
| N800FS | VA | — | · | Look up ↗ |
| N81AD | PA | — | · | Look up ↗ |
| N829E | MO | — | · | Look up ↗ |
| N989AA | NC | — | · | 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