N401MS is a 2015 Michael W Stewart PITTS S1 (fixed wing single engine) with serial number 085, registered in Carterville, IL. Its FAA registration is valid and runs until Jan 31, 2033; the renewal window opens on Jul 31, 2032. It is powered by a Lycoming O-320-EXP rated at 160 hp. Its airworthiness certificate is in the experimental class (amateur-built), issued May 28, 2015. The NTSB accident database lists one record for this airframe since 2008, the latest on Dec 31, 2025.
Registration
- FAA status
- Valid registration
- Expires
- Jan 31, 2033
- Registrant type
- Individual
- Registered owner
- Individual owner, name not shown
- Location
- Carterville, IL
- Local FAA office (FSDO)
- Springfield FSDO (SPI FSDO) · (217) 744-1910
- Certificate issued
- Jan 30, 2026
- Last FAA action
- Jan 30, 2026
- Mode S code (hex)
- A4B17C
- Mode S code (octal)
- 51130574
- Official record
- registry.faa.gov
Aircraft
- Manufacturer
- MICHAEL W STEWART
- Model
- PITTS S1
- Year manufactured
- 2015
- Serial number
- 085
- Aircraft type
- Fixed wing single engine
- Engine type
- Reciprocating
- Engine
- LYCOMING O-320-EXP (160 hp)
- Engines / seats
- 1 / 1
- Weight class
- Up to 12,499 lb
- Airworthiness
- Experimental since May 28, 2015
- Approved operations
- Amateur-built
Public airports near Carterville
| Airport | ID | Distance | Tower | Fuel |
|---|---|---|---|---|
| Veterans Airport Of Southern Illinois Marion, IL | KMWA | 4 mi | Towered | 100LL, A |
| Southern Illinois Carbondale/Murphysboro, IL | KMDH | 9 mi | Towered | 100LL, A |
| Benton Municipal Benton, IL | H96 | 19 mi | Non-towered | 100LL |
Straight-line distance from the registration city, from the FAA airport directory (NASR). The registry does not say where an aircraft is based.
Earlier registrations of this number
| Canceled | Aircraft | Serial | Year | Exported to | Same airframe today |
|---|---|---|---|---|---|
| Sep 3, 2009 | WINWARD PERFORMANCE LLC OWL | 001 | |||
| Sep 27, 2001 | NORTH AMERICAN NA-265-60 | 306-17 |
NTSB accident and incident records
| Date | Place | Aircraft (as NTSB recorded it) | Damage | Highest injury | NTSB no. |
|---|---|---|---|---|---|
| Dec 31, 2025 | Carbondale, IL | Amateur-built S1S this airframe | Substantial | Minor | CEN26LA074 |
From the NTSB aviation accident database (events since 2008, data through Oct 28, 2026), matched by N-number. An N-number can move between aircraft, so each row is checked against the serial number on the current registration.