The U.S. aircraft register, updated daily

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Registered aircraft · FAA record as of November 6, 2026
N401MS

Michael W Stewart PITTS S1

ValidFAA registration status code V: Valid registration. All codesIllinois

N401MS is a Michael W Stewart PITTS S1, a fixed-wing airplane with one motor with a piston engine, built in 2015. It has 1 seat. It is registered to an individual in Carterville, Illinois. The registration is valid: it was issued on January 30, 2026 and expires on January 31, 2033. It holds an experimental airworthiness certificate for amateur built, dated May 28, 2015.

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Flight history: where it flew in the last seven days · follow it on the live map

Aircraft

Maker
Michael W Stewart
Model
PITTS S1
Serial number
085
Type
Fixed-wing, single engineFAA type of aircraft code 4 (the FAA's broad category for the airframe). Every aircraft with this code · All codes
Power
Piston (reciprocating)FAA type of engine code 1 (what powers it, as the FAA classes engines). Every aircraft with this code · All codes, 1 motor · Lycoming O-320-EXP · 160 hp
Fuel
100LL avgas
Seats
1
Year built
2015
Transponder code
A4B17C (octal 51130574)

Registration

Status
Valid registrationFAA registration status code V (whether the registration certificate is in force). Every aircraft with this code · All codes
Certificate issued
January 30, 2026
Expires
January 31, 2033
Last FAA action
January 30, 2026
Airworthiness
ExperimentalFAA airworthiness class code 4 (the kind of airworthiness certificate it flies under and what it is approved for). Every aircraft with this code · All codes · Amateur builtFAA certificate purpose code 2 (the kind of airworthiness certificate it flies under and what it is approved for). All codes · May 28, 2015
FAA region
Great LakesFAA region code C (the FAA regional office that handles the record). All codes
FAA record id
01177121

Owner as the FAA publishes it

Name
Martine Zachary
Type
IndividualFAA type of owner code 1 (who holds the registration: a person, a company, a trust or a government body). Every aircraft with this code · All codes
Address
125 Timber Trl
Carterville, IL 62918-2378

Owners can ask the FAA to withhold their name and address from public files. When they do, those fields are blank here as well. How that works.

Documents on file 0

No bills of sale, loans or other documents are indexed against this tail number.

Earlier use of this number 2

2009-09-03Winward Performance Llc OWL · Triennial registration form was mailed and has not been returned by the Post Office
2001-09-27North American NA-265-60 · Valid registration

Connections how N401MS links to the rest of the register

Design
Engine
Place
  • Carterville, IL 8 aircraft registered in this town
  • Illinois 8,067 aircraft registered

The whole map of how records connect · these connections as data: /graph/aircraft/N401MS.json.

Records check free · 2 to understand · 3 clear

The public federal record on N401MS, read the way a buyer, lender or insurer reads it: FAA registration, prior tail numbers keyed on the serial number, reuse of the tail number, recent registry filings, and the NTSB accident record under this and every earlier registration.

CLEARRegistration and identity

Valid registration to Martine Zachary, an individual, certificate issued January 30, 2026, expires January 31, 2033. No fractional interest recorded. [1]

CLEARAirworthiness certificate

Experimental certificate for amateur built, dated May 28, 2015, consistent with the 2015 manufacture year. [1]

CLEARPrior registrations of this airframe

No earlier tail number is recorded against serial 085 for this model in the deregistered file. [2]

ATTENTIONTail number reuse

N401MS was previously assigned to 2 other aircraft: Winward Performance Llc OWL (serial 001, cancelled September 3, 2009); North American NA-265-60 (serial 306-17, cancelled September 27, 2001). Histories keyed to the tail number alone can mix aircraft up; this check keys on the serial number. [2]

NOTERecent registry documents

No bills of sale, loans or releases have reached the registry in recent weeks. The index covers only recent filings; older liens are in the records file. [3]

ATTENTIONAccident and incident record

2 NTSB records under N401MS: Accident on December 31, 2025 at Carbondale, IL: minor injuries, substantial damage. Accident on October 18, 2006 at Starkville, MS: minor injuries, substantial damage. Details below. [4]

PENDINGTitle chain, liens and 337 forms

These live in the FAA aircraft records file (every document ever filed against the aircraft) and, for larger aircraft, the International Registry. Part of the full report.

PENDINGAirworthiness directives and utilization

AD compliance against the logbooks and flight-activity reconciliation are researched layers of the full report.

NTSB records 2

CEN26LA074Accident on December 31, 2025 at Carbondale, IL: minor injuries, substantial damage.

Aircraft on the NTSB record: Pitts S1S · operated under 091

A loss of engine power due to fuel starvation resulting from an uncommanded change to the fuel servo mixture position due to the improperly installed mixture cable.

Full record in plain English · Docket and reports at the NTSB

DFW07LA006Accident on October 18, 2006 at Starkville, MS: minor injuries, substantial damage.serial on NTSB record: 001

Aircraft on the NTSB record: Windward OWL · operated under 091

The structural failure of the airframe due to the inadvertent excessive airspeed during maneuvering.

Full record in plain English · Docket and reports at the NTSB

CLEAR the source was checked and shows no adverse findingATTENTION a fact a buyer or lender should understand, often routineNOTE context onlyPENDING covered by the full report
  1. FAA Releasable Aircraft Database, master file, file of November 6, 2026. registry.faa.gov/
  2. FAA deregistered aircraft file (part of the same download), file of November 6, 2026. registry.faa.gov/
  3. FAA document index: registry documents received in recent weeks, file of November 6, 2026. registry.faa.gov/
  4. NTSB aviation accident database (CAROL), records through October 28, 2026. data.ntsb.gov/carol-main-public/basic-search

This automated check reads the public federal record. Nothing here is a legal opinion, an appraisal or a statement about the aircraft's condition; a CLEAR line is a statement about the searched record, not the aircraft.

Source: FAA Civil Aviation Registry, Releasable Aircraft Database, November 6, 2026. See this record on the FAA site · This record as data