Single-engine piston

N473AS

2025 Homebuilt Monnett Sonerai IILT

Registered 1 NTSB/FAA record
Built
2025
Serial
080706-0831
Class
Single-engine piston
Engines
Revmaster 2100D
Status
Current as of October 2026
Registered owner
Individual · sign in to see
Based
Richland Center, WI
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Registration record

N473AS on the FAA register

Type
2025 Homebuilt Monnett Sonerai IILT
Serial
080706-0831
Engines
Revmaster 2100D
Registered owner
Individual — the name of an individual registrant is shown to signed-in users. Sign in
Richland Center, WI
Certificate issued
2024-02-23
Airworthiness date
2025-05-22
Registration expires
2031-02-28
Airworthiness class
Experimental · amateur-built
Mode S (hex)
A5CC50
Mode S (octal)
51346120
Seats (type)
1
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2031-02-28
    Registration expires (renewal due).
  • 2026-10-12
    Accident at Sextonville, WI.
  • 2025-05-22
    Airworthiness date on the current FAA record (experimental category (amateur-built)).
  • 2024-02-23
    Certificate of registration issued as N473AS to the current registrant.
  • 2012-04-26
    N473AS previously assigned to a Boeing 747-400 (s/n 24777); cancelled.
  • 2008-03-18
    N473AS previously assigned to a Airbus A300 B4-203 (s/n 203); cancelled.
Overview

About N473AS

N473AS is a 2025 Homebuilt Monnett Sonerai IILT, serial number 080706-0831. It is registered to an individual in Richland Center, Wisconsin. The current certificate of registration was issued on February 23, 2024 and expires on February 28, 2031.

The FAA aircraft reference file describes the type as a single-engine piston, one Revmaster 2100D engine and 1 seats. Its airworthiness certificate is experimental category (amateur-built), dated May 22, 2025.

N473AS has 1 accident/incident record on file; details are below.

Safety record

Accident & incident history

2026-10-12 Accident · Sextonville, WI Serious injury NTSB (Ongoing) · CEN27LA009
Reported aircraft: Simpson Arthur Monnett Sonerai IILT
FAA remark: AIRCRAFT CRASHED INTO A MARSHY AREA FOR UNKNOWN REASONS, RICHLAND CENTER, WI.
NTSB report ↗

Sources: NTSB aviation accident database and CAROL case system, FAA preliminary accident & incident notices. Search accident records

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Browse: Aircraft registered in Wisconsin· Registry by state· FAA registry stats

Data: FAA Aircraft Registry (October 2026), including deregistered aircraft; NTSB and FAA accident data; fyiAero listing history. Individual owners' names are shown to signed-in users and street addresses are never shown. Type figures are published specifications, not this aircraft's.