# N87MK — CESSNA 421B
> **1974** Fixed Wing Multi-Engine · Reciprocating · Owner: WIND RIVER AVIATION LLC · LAWTON, OK
## Aircraft
- **N-Number:** N87MK
- **Serial Number:** 421B0808
- **Manufacturer:** CESSNA
- **Model:** 421B
- **Year manufactured:** 1974
- **Type:** Fixed Wing Multi-Engine
- **Engine type:** Reciprocating (02 engines)
- **Seats:** 008
- **Weight class:** CLASS 1
- **Mode S code (hex):** `ABF51A`
## Owner
- **Name:** WIND RIVER AVIATION LLC
- **Type of registrant:** LLC
- **Location:** LAWTON, OK 735014617, US
## Registration
- **Status:** Valid
- **Certificate issued:** 2024-01-26
- **Last action:** 2024-01-26
- **Expiration:** 2031-01-31
## Source
- [FAA Aircraft Inquiry](https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=87MK)
- [ADS-B Exchange live tracking](https://globe.adsbexchange.com/?icao=abf51a)
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