Single-engine piston

N10721

1933 Sioux Coupe 90-B

Registered No accidents on file
Built
1933
Serial
401
Class
Single-engine piston
Engines
Warner SS40&50
Status
Current as of October 2026
Registered owner
Antique Preservation Association of Greenfield (Corporation)
Based
Greenfield, IA
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Registration record

N10721 on the FAA register

Type
1933 Sioux Coupe 90-B
Serial
401
Engines
Warner SS40&50
Registered owner
Antique Preservation Association of Greenfield
Greenfield, IA
Certificate issued
2007-01-09
Airworthiness date
1977-07-29
Registration expires
2029-04-30
Airworthiness class
Standard · normal
Mode S (hex)
A0216D
Mode S (octal)
50020555
Seats (type)
2
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2029-04-30
    Registration expires (renewal due).
  • 2007-01-09
    Certificate of registration issued as N10721.
  • 1977-07-29
    Airworthiness date on the current FAA record (standard category (normal)).
  • 1933
    Manufactured (1933).
Overview

About N10721

N10721 is a 1933 Sioux Coupe 90-B, serial number 401. The FAA register lists Antique Preservation Association of Greenfield as the registrant in Greenfield, Iowa. The current certificate of registration was issued on January 9, 2007 and expires on April 30, 2029.

The FAA aircraft reference file describes the type as a single-engine piston, one Warner SS40&50 engine and 2 seats. Its airworthiness certificate is standard category (normal), dated July 29, 1977.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N10721.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N10721.

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 Iowa· 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.