Single-engine piston

N39721

1942 Waco UPF-7

Registered 2 NTSB/FAA records
Built
1942
Serial
5854
Class
Single-engine piston
Engines
Continental W670 series
Status
Current as of October 2026
Registered owner
Individual · sign in to see
Based
Chesterfield, MO
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1942 Waco UPF-7
Representative photo of a Waco UPF-7. Not a photo of N39721.
Registration record

N39721 on the FAA register

Type
1942 Waco UPF-7
Serial
5854
Engines
Continental W670 series
Registered owner
Individual — the name of an individual registrant is shown to signed-in users. Sign in
Chesterfield, MO
Certificate issued
2024-10-10
Airworthiness date
1947-04-25
Registration expires
2031-10-31
Airworthiness class
Standard · normal
Mode S (hex)
A49F82
Mode S (octal)
51117602
Seats (type)
2
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2031-10-31
    Registration expires (renewal due).
  • 2024-10-10
    Certificate of registration issued as N39721.
  • 2023-08-20
    Accident at Warrenton, VA; damage: substantial.
  • 1989-02-06
    Incident at Marathon, FL; damage: minor.
  • 1947-04-25
    Airworthiness date on the current FAA record (standard category (normal)).
  • 1942
    Manufactured (1942).
Overview

About N39721

N39721 is a 1942 Waco UPF-7, serial number 5854. It is registered to an individual in Chesterfield, Missouri. The current certificate of registration was issued on October 10, 2024 and expires on October 31, 2031.

The FAA aircraft reference file describes the type as a single-engine piston, one Continental W670 series engine and 2 seats. Its airworthiness certificate is standard category (normal), dated April 25, 1947.

N39721 has 2 accident/incident records on file (most serious damage: substantial); details are below.

Safety record

Accident & incident history

2023-08-20 Accident · Warrenton, VA Damage: Substantial NTSB · ERA23LA345
Reported aircraft: Waco UPF-7
Probable cause: A ground loop during landing resulting from a partial separation of the right main landing gear strut during takeoff.
1989-02-06 Incident · Marathon, FL Damage: Minor Minor injury NTSB · MIA89IA080
Reported aircraft: Waco UPF-7
Probable cause: FUEL STARVATION DUE TO A CORRODED CARBURETOR.

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 Missouri· 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.