Cessna 421B
N87MK is a Cessna 421B, a fixed-wing airplane with more than one motor with a piston engine, built in 1974. It has 8 seats. It is registered to Wind River Aviation LLC, an LLC in Lawton, Oklahoma. The registration is valid: it was issued on January 26, 2024 and expires on January 31, 2031. It holds a standard airworthiness certificate for normal, dated November 1, 1974.
Aircraft
- Maker
- Cessna
- Model
- 421B · all 421Bs and related versions
- Serial number
- 421B0808
- Type
- Fixed-wing, multi-engine
- Power
- Piston (reciprocating), 2 motors · Cont Motor GTSIO-520-C · 340 hp
- Seats
- 8
- Year built
- 1974
- Cruising speed
- 172 mph
- Transponder code
- ABF51A (octal 52772432)
Registration
- Status
- Valid registration
- Certificate issued
- January 26, 2024
- Expires
- January 31, 2031
- Last FAA action
- January 26, 2024
- Airworthiness
- Standard · Normal · November 1, 1974
- FAA region
- Southwestern
- FAA record id
- 00140940
Owner as the FAA publishes it
- Name
- Wind River Aviation LLC
- Type
- LLC
- Address
- 410 SW Texas Ave
Lawton, OK 73501-4617
Owners can ask the FAA to withhold their name and address from public files. When they do, those fields are blank here as well. How that works.
Documents on file 0
No bills of sale, loans or other documents are indexed against this tail number.
Earlier use of this number 1
Records check free · 1 to understand · 4 clear
The public federal record on N87MK, read the way a buyer, lender or insurer reads it: FAA registration, prior tail numbers keyed on the serial number, reuse of the tail number, recent registry filings, and the NTSB accident record under this and every earlier registration.
Valid registration to Wind River Aviation LLC, an LLC, certificate issued January 26, 2024, expires January 31, 2031. No fractional interest recorded. [1]
Standard certificate for normal, dated November 1, 1974, consistent with the 1974 manufacture year. [1]
No earlier tail number is recorded against serial 421B0808 for this model in the deregistered file. [2]
N87MK was previously assigned to 1 other aircraft: Cessna 182J (serial 18257392, cancelled October 21, 2014). Histories keyed to the tail number alone can mix aircraft up; this check keys on the serial number. [2]
No bills of sale, loans or releases have reached the registry in recent weeks. The index covers only recent filings; older liens are in the records file. [3]
No NTSB investigation records located under N87MK. CLEAR means the query ran and returned nothing, not that nothing ever happened. [4]
These live in the FAA aircraft records file (every document ever filed against the aircraft) and, for larger aircraft, the International Registry. Part of the full report.
AD compliance against the logbooks and flight-activity reconciliation are researched layers of the full report.
- FAA Releasable Aircraft Database, master file, file of October 2, 2026. registry.faa.gov/
- FAA deregistered aircraft file (part of the same download), file of October 2, 2026. registry.faa.gov/
- FAA document index: registry documents received in recent weeks, file of October 2, 2026. registry.faa.gov/
- NTSB aviation accident database (CAROL), records through August 27, 2026. data.ntsb.gov/carol-main-public/basic-search
This automated check reads the public federal record. Nothing here is a legal opinion, an appraisal or a statement about the aircraft's condition; a CLEAR line is a statement about the searched record, not the aircraft.
Source: FAA Civil Aviation Registry, Releasable Aircraft Database, October 2, 2026. See this record on the FAA site · This record as data