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Registered aircraft · FAA record as of September 25, 2026
N421MD

Cessna 421C

Valid Montana

N421MD is a Cessna 421C, a fixed-wing airplane with more than one motor with a piston engine, built in 1978. It has 8 seats. It is registered to Boss Contract Services LLC, an LLC in Terry, Montana. The registration is valid: it was issued on July 28, 2026 and expires on July 31, 2033. It holds a standard airworthiness certificate for normal, dated May 23, 1999.

Aircraft

Maker
Cessna
Model
421C
Serial number
421C0516
Type
Fixed-wing, multi-engine
Power
Piston (reciprocating), 2 motors · Cont Motor GTSIO-520 SER · 300 hp
Seats
8
Year built
1978
Cruising speed
90 mph
Transponder code
A5006D (octal 51200155)

Registration

Status
Valid registration
Certificate issued
July 28, 2026
Expires
July 31, 2033
Last FAA action
July 28, 2026
Airworthiness
Standard · Normal · May 23, 1999
FAA region
Northwest Mountain
FAA record id
00111891

Owner as the FAA publishes it

Name
Boss Contract Services LLC
Type
LLC
Address
2483 Bad Route Rd
Terry, MT 59349-7318

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.

Source: FAA Civil Aviation Registry, Releasable Aircraft Database, September 25, 2026. See this record on the FAA site · This record as data