# N4000B — DOUGLAS B-23
> **1940** Fixed Wing Multi-Engine · Reciprocating · Owner: WORLDS GREATEST AIRCRAFT COLLECTION INC · POLK CITY, FL
## Aircraft
- **N-Number:** N4000B
- **Serial Number:** 2743
- **Manufacturer:** DOUGLAS
- **Model:** B-23
- **Year manufactured:** 1940
- **Type:** Fixed Wing Multi-Engine
- **Engine type:** Reciprocating (02 engines)
- **Seats:** 005
- **Weight class:** CLASS 3
- **Mode S code (hex):** `A4AEFB`
## Owner
- **Name:** WORLDS GREATEST AIRCRAFT COLLECTION INC
- **Type of registrant:** Corporation
- **Location:** POLK CITY, FL 338689109, US
## Registration
- **Status:** Valid
- **Certificate issued:** 1987-05-04
- **Last action:** 2023-07-07
- **Expiration:** 2029-01-31
## Source
- [FAA Aircraft Inquiry](https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4000B)
- [ADS-B Exchange live tracking](https://globe.adsbexchange.com/?icao=a4aefb)
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