Type Record · As of May 3, 2026
AERO COMMANDER 681
Fixed Wing Multi Engine · AIRESEARCH TPE331-1
Registered
6
Year Range
1969–1972
NTSB Events
1
Airworthiness Directives
6
01 / Distribution
Where the fleet lives and was built
Counts of currently-registered AERO COMMANDER 681 aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.
By State (top 10)
- FL 33.3% 2
- DE 16.7% 1
- MT 16.7% 1
- OH 16.7% 1
- TX 16.7% 1
By Decade of Manufacture
- 1960s 16.7% 1
- 1970s 66.7% 4
- Unknown 16.7% 1
02 / NTSB Records
Events involving AERO COMMANDER 681 aircraft
1 event(s) on file. Showing the most recent 1.
-
Jul 17, 1967
N2750GAGANA, GU
NTSB Docket →
02b / NASA ASRS Reports
Near-miss reports involving AERO COMMANDER 681
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 681
6 directive(s) on file. Showing the most recent 6.
-
May 20, 2009
Airworthiness Directives; Hartzell Propeller Inc. Steel Hub Turbine Propellers
The FAA is adopting a new airworthiness directive (AD) for Hartzell Propeller Inc. steel hub turbine propellers, with any counterweight slug attachment bolts, part number (P/N) B-3386-14H, LFC manufacturing lot 224, installed. This AD requires identifying and removing all counterweight slug attachment bolts, P/N B-338…
-
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 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…
-
Apr 26, 1996
Airworthiness Directives; Hartzell Propeller Inc. HC-A3V, HC-B3M, HC-B3T, HC-B4M, HC-B4T, and HC-B5M Series Propellers
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to Hartzell Propeller Inc. (Hartzell) HC-A3V, HC-B3M, HC-B3T, HC-B4M, HC- B4T, and HC-B5M series propellers. This proposal would require hub replacement over a 10-year time period with a concurrent blade and blade clamp inspec…
04 / Type Certificate Data Sheets
FAA TCDS for AERO COMMANDER 681
The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 1 match in the FAA catalog.
- 2A4 Current Rev 50 · 11/18/2024
Twin Commander Aircraft LLC
Models: 680-V, 680-F(P), 680-F, 680-E + 17 more
06 / Supplemental Type Certificates
Modifications approved for AERO COMMANDER 681
47 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
-
06/13/2024
STC SA02511SE (1 OF 3)
Installation of replacement fuel quantity indicator sending unit(s)
CiES Inc.
-
06/13/2024
STC SA02511SE (1 OF 2)
Installation of replacement fuel quantity indicator sending unit(s)
CiES Inc.
-
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.
-
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
-
10/29/2020
STC SA02511SE (1 OF 3)
Installation of replacement fuel quantity indicator sending unit(s)
CiES 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
-
07/24/2019
STC SA02511SE (1 OF 2)
Installation of replacement fuel quantity indicator sending unit(s)
CiES 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
-
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
-
07/12/2018
STC SA02503AK (Page 2)
Installation of AMSAFE State of the Art Restraint System (SOARS) inflatable restraints
AMSAFE Inc.
-
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
-
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
-
05/01/2017
STC SA02265SE
Installation of a camera housing
Airborne Sensor LLC
-
09/27/2016
STC SA02386AK
Replacement of existing landing and/or taxi light reflector and bulbs with Light Emitting Diode (LED) lighting systems
Aero LEDs LLC
-
02/29/2016
STC SA00149BO
Installation of Aircraft Components, Inc. Volt and Vac Alert System, P/N 2044-1
Aircraft Components Inc
-
01/29/2016
STC SA00765DE Page 1
Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out functionality using the BendixKing KT74 Transponder and qualified position sensor
Peregrine
-
01/22/2016
STC SA03658AT
Installation of a Voice Alert System to incorporate as primary annunciators for stall and gear warnings
Aircraft Components Inc
-
04/13/2015
STC SA02430SE
Fabrication and installation of a camera housing
Airborne Sensor LLC
-
03/03/2015
STC SA00765DE
Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out functionality using the BendixKing KT74 Transponder and qualified position sensor
Peregrine
-
12/12/2014
STC SA800EA
Installation of Whelen Anti-Collision, Position, or Anti-Collision/Position Light System, and applicable associated power supplies
Whelen Engineering Co Inc
-
12/05/2014
STC SA800EA
Installation of Whelen Anti-Collision, Position, or Anti-Collision/Position Light System, and applicable associated power supplies
Whelen Engineering Co Inc
-
04/23/2014
STC SA00269BO
Installation of Avidyne Corporation TWX 670 Tactical Weather Detection System P/N 850-00026-000-( ) consisting of Avidyne Processor P/N 700-00033-000-( ), Sensor Systems Inc. Anten…
Avidyne Corporation
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02/28/2013
STC SA02075SE
Installation of a Mid-Continent MD835( ) Lithium Ion Battery
Mid-Continent Instrument Co. Inc.
-
09/17/2010
STC SA02075SE
Installation of a Mid-Continent MD835-() Lithium Ion Battery.
AeroMech Incorporated
+ 17 more STCs on file
07 / PMA replacement parts
FAA-approved replacement parts for AERO COMMANDER 681
3 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.
-
105-HNG-275C#https://drs.faa.gov/browse/excelExternalWindow/76473DEB5E1EF94A862578E200629DF1.0001##
Hydraulic Pump
Meggitt (North Hollywood), Inc. replaces 4790332-1
PMA holder → -
105-HNG-275C#https://drs.faa.gov/browse/excelExternalWindow/518303E2F51CA23E862575230071220E.0001##
Hydraulic Pump
Meggitt (North Hollywood), Inc. replaces 4790332-1
PMA holder → -
520-6900#https://drs.faa.gov/browse/excelExternalWindow/019BF5686B5182EF862585690051C5BD.0001##
Air Medical System
LifePort Inc replaces Modification Parts
PMA holder →
04 / Regulations watching this type
Advisory Circulars and Federal Register activity for AERO COMMANDER 681
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 6 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 |
|---|---|---|---|---|
| N2749G | FL | 1971 | · | Look up ↗ |
| N2750G | DE | 1972 | ● | Look up ↗ |
| N29PR | MT | 1969 | · | Look up ↗ |
| N526WY | OH | 1971 | · | Look up ↗ |
| N681SP | FL | — | · | Look up ↗ |
| N681TC | TX | 1971 | · | 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 →