Single-engine piston

N18743

Porterfield CP-40

Registered No accidents on file

Built

—

Serial

529

Class

Single-engine piston

Engines

Continental A40 series

Status

Current as of October 2026

Registered owner

Airpower Museum Inc (Corporation)

Based

Ottumwa, IA

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Registration record

N18743 on the FAA register

Type

Porterfield CP-40

Serial

529

Engines

Continental A40 series

Registered owner

Airpower Museum Inc

Ottumwa, IA

Certificate issued

2014-04-14

Airworthiness date

1956-04-15

Registration expires

2030-04-30

Airworthiness class

Standard

Mode S (hex)

A15DAD

Mode S (octal)

50256655

Seats (type)

Weight class

up to 12,499 lb

Status

Current as of October 2026

Registry history

Timeline

2030-04-30
Registration expires (renewal due).
2014-04-14
Certificate of registration issued as N18743.
1956-04-15
Airworthiness date on the current FAA record (standard category).

Overview

About N18743

N18743 is a Porterfield CP-40, serial number 529. The FAA register lists Airpower Museum Inc as the registrant in Ottumwa, Iowa. The current certificate of registration was issued on April 14, 2014 and expires on April 30, 2030.

The FAA aircraft reference file describes the type as a single-engine piston, one Continental A40 series engine and 2 seats. Its airworthiness certificate is standard category, dated April 15, 1956.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N18743.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N18743.

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

Same state

Other aircraft registered in Iowa

1984 Cessna Conquest I

All 4,510 aircraft registered in Iowa →

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Porterfield models on the register

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.