Type Record · As of May 3, 2026
COMMONWEALTH 185
Fixed Wing Single Engine · CONT MOTOR C85 SERIES
Registered
62
Year Range
1945–1947
NTSB Events
13
Airworthiness Directives
0
Aircraft Resources
01 / Distribution
Where the fleet lives and was built
Counts of currently-registered COMMONWEALTH 185 aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.
By State (top 10)
- WA 12.9% 8
- FL 9.7% 6
- MI 8.1% 5
- OR 8.1% 5
- GA 4.8% 3
- NY 4.8% 3
- AZ 4.8% 3
- PA 4.8% 3
- TX 3.2% 2
- CA 3.2% 2
+18 more states
By Decade of Manufacture
- 1940s 77.4% 48
- Unknown 22.6% 14
02 / NTSB Records
Events involving COMMONWEALTH 185 aircraft
13 event(s) on file. Showing the most recent 13.
-
Aug 8, 2013
N67045Burlington, Washington
NTSB Docket → -
May 24, 2008
N33384Roanoke, Texas Minor
NTSB Docket → -
Jun 22, 2007
N92827Redlands, California Minor
NTSB Docket → -
Jun 28, 1998
N92997OREGON, Wisconsin Minor
NTSB Docket → -
Jul 12, 1991
N90683TOLEDO, Washington
NTSB Docket → -
Jun 17, 1989
N92827SACRAMENTO, California
NTSB Docket → -
Aug 27, 1973
N92830JONESBORO, Arkansas
NTSB Docket → -
Aug 23, 1972
N90682WICHITA, Kansas
NTSB Docket → -
Aug 4, 1968
N92904LAPEER, Michigan
NTSB Docket → -
Feb 3, 1968
N34135NEWPORT NEWS, Virginia
NTSB Docket → -
Jan 22, 1965
N93250MERIDEN, Connecticut
NTSB Docket → -
Sep 20, 1964
N34132FORTVILLE, Indiana Serious
NTSB Docket → -
Jun 13, 1964
N92830KELLAM FIELD, Virginia
NTSB Docket →
02c / Academic Research
Scholarly work mentioning COMMONWEALTH 185
Papers and reports across NASA, NTSB, FAA CAMI, AOPA ASI, Embry-Riddle, arXiv, and the broader academic graph that mention this airframe. Title or keyword match — drill into each for full abstract + author list + PDF link.
- Embry-Riddle Scholarly Commons 2022 · Journal article (IJAAA)
Comparison of Schedules, Stress, Sleep Problems, Fatigue, Mental Health and Well-being of Low Cost and Network Carrier Pilots
Objective This research investigates and compares working-conditions, duty rosters, stress, sleep problems, fatigue levels, mental health, and well-being of pilots working for network (NWCs), and low-…
- Embry-Riddle Scholarly Commons 1996 · Journal article (JAAER)
The Edwards Personal Preference Schedule as a Predictor of Success in a Collegiate Professional Pilot Training Program
This study examined the preliminary results of a project designed to identify a method to predict successful student completion of a collegiate professional pilot curriculum.
- Embry-Riddle Scholarly Commons 1994 · Journal article (JAAER)
Testing for the Existence of the Pilot Personality Profile in Collegiate Professional Pilot Candidates
This study explored the existence of the so-called pilot's personality profile in collegiate professional pilot candidates, based on selected factors of the Edwards Personality Preference Schedule (EP…
Browse the full corpus — academia portal ↗
03 / Airworthiness Directives
FAA directives applicable to COMMONWEALTH 185
No matching airworthiness directives are on file for this make and model in the Federal Register.
04 / Type Certificate Data Sheets
FAA TCDS for COMMONWEALTH 185
The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 1 match in the FAA catalog.
- A-729 Current Rev 5 · 12/20/1949
Commonwealth Aircraft Inc.
Models: 190F, 175, 180, 180F + 1 more
06 / Supplemental Type Certificates
Modifications approved for COMMONWEALTH 185
55 STCs on file — every FAA-approved modification, alteration, or installation for this aircraft. STOL kits, avionics, fuel systems, floats, engine swaps, you name it.
-
03/01/2025
STC SA7965SW
Application of fabric and polyurethane finishing system.
Shady Aviation LLC
-
08/21/2024
STC SA01757WI
To allow the use of UL91 or UL94 (minimum) grade aviation fuel
Swift Fuels LLC
-
05/17/2024
STC SA4503NM (PAGE 1)
Remove original cloth covering and install Ceconite covering
Ceconite Division of Poly-Fiber Inc.
-
09/09/2022
STC SA1008WE
Installation of Poly-Fiber covering material.
Poly-Fiber Inc
-
09/09/2022
STC SA4503NM (PAGE 1)
Install Ceconite covering material.
Ceconite Division of Poly-Fiber Inc
-
07/27/2022
STC SA01757WI
To allow the use of UL91 or UL94 (minimum) grade aviation fuel
Swift Fuels LLC
-
05/19/2022
STC SA04776NY (1 OF 2)
The HIPEC Covering and Finishing System must be performed and maintained
HIPEC Aircraft Coatings Inc.
-
07/27/2020
STC SA01831WI
To allow the use of UL91 (minimum) grade aviation fuel
Petersen Aviation Inc
-
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
-
02/11/2019
STC SA01831WI
To allow the use of UL91 (minimum) grade aviation fuel
ADI LLC
-
03/01/2018
STC SA7965SW
Application of fabric and polyurethane finishing system.
Air Tech Coatings
-
12/20/2017
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
-
01/24/2017
STC SA01831WI
To allow the use of UL91 (minimum) grade aviation fuel
Petersen Aviation Inc
-
10/14/2016
STC SA01734SE (PG 3)
Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts.
Andrew D. Humphrey
-
05/20/2016
STC SA01757WI
To allow the use of UL91 or UL94 (minimum) grade aviation fuel
Swift Fuels LLC
-
03/09/2016
STC SA01757WI
To allow the use of UL91 or UL94 (minimum) grade aviation fuel
Petersen Aviation Inc
-
10/28/2015
STC SA01757WI
To allow the use of UL91 (minimum) grade aviation fuel
Petersen Aviation Inc
-
06/10/2015
STC SA01734SE (PG 3)
Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts.
Stewart Thomas D. and Stewart Dan R.
-
06/04/2015
STC SA00478CH
Installation of Cooper Superflite 102 Fabric.
Aviation Products Systems Inc.
-
05/18/2015
STC SA01768SE
Installation of an oil cooler system.
Steve's Aircraft
-
07/17/2014
STC SA10921SC
Installation of an alternator and regulator as a replacement to existing OEM generators and mechanical voltage regulators
Hartzell Engine Technologies, LLC
-
10/31/2012
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
-
03/23/2011
STC SA01734SE (PG 3)
Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts.
Stewart Thomas D. and Stewart Dan R.
-
02/25/2011
STC SA4503NM (Page 1)
Install Ceconite covering material.
Ceconite Division of Poly-Fiber Inc
-
09/18/2009
STC SA00478CH (PAGE 1)
Installation of Cooper Superflite 102 Fabric.
Aviation Products Systems Inc.
-
06/26/2009
STC SA01734SE (PG 3)
Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts.
Stewart Thomas D. and Stewart Dan R.
-
05/15/2009
STC SA00478CH (PAGE 1)
Installation of Cooper Superflite 102 Fabric.
Aviation Products Systems Inc.
-
02/10/2009
STC SA593CH (Page 1)
Install Champion SlickSTART magneto booster system.
Champion Aerospace LLC
-
11/10/2008
STC SA10921SC
Installation of an alternator and regulator as a replacement to existing OEM generators and mechanical voltage regulators
Plane Power Ltd.
-
12/18/2007
STC SA4005NM (Page 1)
Precise Flight Inc. Pulselite Control System
Precise Flight Inc
+ 25 more STCs on file
04 / Regulations watching this type
Advisory Circulars and Federal Register activity for COMMONWEALTH 185
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 62 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 |
|---|---|---|---|---|
| N31207 | WA | 1946 | · | Look up ↗ |
| N31209 | WA | 1946 | · | Look up ↗ |
| N33384 | TX | 1945 | ● | Look up ↗ |
| N33390 | WA | 1946 | · | Look up ↗ |
| N33391 | GA | — | · | Look up ↗ |
| N33395 | WA | 1946 | · | Look up ↗ |
| N34124 | ME | 1946 | · | Look up ↗ |
| N34128 | MI | — | · | Look up ↗ |
| N34132 | OR | 1947 | ● | Look up ↗ |
| N34134 | NY | — | · | Look up ↗ |
| N34135 | VA | 1946 | ● | Look up ↗ |
| N67045 | NM | — | ● | Look up ↗ |
| N67048 | MO | 1946 | · | Look up ↗ |
| N67059 | FL | 1946 | · | Look up ↗ |
| N73801 | MI | 1946 | · | Look up ↗ |
| N73802 | CA | — | · | Look up ↗ |
| N73804 | NY | 1946 | · | Look up ↗ |
| N73811 | AZ | — | · | Look up ↗ |
| N73820 | KY | 1946 | · | Look up ↗ |
| N777QB | WA | 1946 | · | Look up ↗ |
| N90682 | WA | 1946 | ● | Look up ↗ |
| N90683 | AZ | — | ● | Look up ↗ |
| N90685 | OR | 1946 | · | Look up ↗ |
| N90689 | FL | 1946 | · | Look up ↗ |
| N90691 | OR | 1946 | · | Look up ↗ |
| N90697 | WA | 1946 | · | Look up ↗ |
| N90698 | OR | — | · | Look up ↗ |
| N92825 | GA | 1946 | · | Look up ↗ |
| N92827 | FL | — | ● | Look up ↗ |
| N92830 | AR | 1946 | ● | Look up ↗ |
| N92901 | WI | — | · | Look up ↗ |
| N92904 | OK | 1946 | ● | Look up ↗ |
| N92906 | PA | 1946 | · | Look up ↗ |
| N92907 | CT | 1946 | · | Look up ↗ |
| N92915 | OK | — | · | Look up ↗ |
| N92916 | KS | 1946 | · | Look up ↗ |
| N92920 | FL | 1946 | · | Look up ↗ |
| N92924 | OH | — | · | Look up ↗ |
| N92930 | AL | 1946 | · | Look up ↗ |
| N92932 | FL | 1946 | · | Look up ↗ |
| N92941 | TX | 1946 | · | Look up ↗ |
| N92953 | NY | 1946 | · | Look up ↗ |
| N92954 | CA | 1946 | · | Look up ↗ |
| N92960 | MN | 1946 | · | Look up ↗ |
| N92962 | OR | — | · | Look up ↗ |
| N92968 | WV | 1946 | · | Look up ↗ |
| N92971 | MT | 1946 | · | Look up ↗ |
| N92982 | AK | 1946 | · | Look up ↗ |
| N92988 | MA | 1946 | · | Look up ↗ |
| N92997 | WI | 1946 | ● | Look up ↗ |
| N92999 | MN | 1946 | · | Look up ↗ |
| N93231 | WA | 1946 | · | Look up ↗ |
| N93232 | FL | 1946 | · | Look up ↗ |
| N93233 | AZ | 1946 | · | Look up ↗ |
| N93238 | OH | 1946 | · | Look up ↗ |
| N93243 | PA | — | · | Look up ↗ |
| N93246 | RI | 1946 | · | Look up ↗ |
| N93248 | PA | 1946 | · | Look up ↗ |
| N93250 | MI | 1946 | ● | Look up ↗ |
| N93253 | GA | 1946 | · | Look up ↗ |
| N93278 | MI | 1946 | · | Look up ↗ |
| N93280 | MI | 1946 | · | 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 →