Single-engine piston

N4145S

1999 Homebuilt Challenger II

Registered No accidents on file

Built

1999

Serial

CH203951314

Class

Single-engine piston

Engines

Rotax 503 DCDI

Status

Current as of October 2026

Registered owner

Individual · sign in to see

Based

Enterprise, AL

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Registration record

N4145S on the FAA register

Type

1999 Homebuilt Challenger II

Serial

CH203951314

Engines

Rotax 503 DCDI

Registered owner

Individual — the name of an individual registrant is shown to signed-in users. Sign in

Enterprise, AL

Certificate issued

2021-05-05

Airworthiness date

2007-12-19

Registration expires

2028-05-31

Airworthiness class

Experimental · light-sport

Mode S (hex)

A4E614

Mode S (octal)

51163024

Seats (type)

Weight class

up to 12,499 lb

Status

Current as of October 2026

Registry history

Timeline

2028-05-31
Registration expires (renewal due).
2021-05-05
Certificate of registration issued as N4145S.
2007-12-19
Airworthiness date on the current FAA record (experimental category (light-sport)).
1999
Manufactured (1999).

Overview

About N4145S

N4145S is a 1999 Homebuilt Challenger II, serial number CH203951314. It is registered to an individual in Enterprise, Alabama. The current certificate of registration was issued on May 5, 2021 and expires on May 31, 2028.

The FAA aircraft reference file describes the type as a single-engine piston, one Rotax 503 DCDI engine and 2 seats. Its airworthiness certificate is experimental category (light-sport), dated December 19, 2007.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N4145S.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N4145S.

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.