Electric rotorcraft

N639KF

Homebuilt C31

Not current (FAA status 2) No accidents on file
Built
—
Serial
21578540702D5
Class
Electric rotorcraft
Engines
8
Status
Not current (FAA status 2)
Registered owner
—
Based
—
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Registration record

N639KF on the FAA register

Type
Homebuilt C31
Serial
21578540702D5
Engines
8
Registered owner
—
Certificate issued
—
Airworthiness date
—
Registration expires
—
Airworthiness class
—
Mode S (hex)
A86012
Mode S (octal)
52060022
Weight class
up to 12,499 lb
Status
Not current (FAA status 2)
Registry history

Timeline

No dated events on the record.

Overview

About N639KF

N639KF is a Homebuilt C31, serial number 21578540702D5.

The FAA aircraft reference file describes the type as an electric rotorcraft.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N639KF.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N639KF.

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

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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.