# N781EX — FERSTL MARK R ONEX
> **2025** Fixed Wing Single-Engine · Reciprocating · Owner: FERSTL MARK R · TUCSON, AZ
## Aircraft
- **N-Number:** N781EX
- **Serial Number:** ONX 0040
- **Manufacturer:** FERSTL MARK R
- **Model:** ONEX
- **Year manufactured:** 2025
- **Type:** Fixed Wing Single-Engine
- **Engine type:** Reciprocating (01 engines)
- **Seats:** 001
- **Weight class:** CLASS 1
- **Mode S code (hex):** `AA94B7`
## Owner
- **Name:** FERSTL MARK R
- **Type of registrant:** Individual
- **Location:** TUCSON, AZ 857111931, US
## Registration
- **Status:** Valid
- **Certificate issued:** 2025-05-19
- **Last action:** 2025-05-19
- **Expiration:** 2032-05-31
## Source
- [FAA Aircraft Inquiry](https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=781EX)
- [ADS-B Exchange live tracking](https://globe.adsbexchange.com/?icao=aa94b7)
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