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Registered aircraft · FAA record as of September 25, 2026
N3721S

Byington Shain S-7S

Valid Montana

N3721S is a Byington Shain S-7S, a fixed-wing airplane with one motor with a four-stroke engine. It has 2 seats. It is registered to an individual in Big Sandy, Montana. The registration is valid: it was issued on June 6, 2019 and expires on June 30, 2029. It holds an experimental airworthiness certificate for registered before jan 31, 2008, dated April 24, 2007.

Aircraft

Maker
Byington Shain
Model
S-7S
Serial number
0995156
Type
Fixed-wing, single engine
Power
Four-cycle piston, 1 motor · Rotax 912S · 100 hp
Seats
2
Year built
Not given
Transponder code
A43DC5 (octal 51036705)

Registration

Status
Valid registration
Certificate issued
June 6, 2019
Expires
June 30, 2029
Last FAA action
August 11, 2023
Airworthiness
Experimental · Registered before Jan 31, 2008 · April 24, 2007
FAA region
Northwest Mountain
FAA record id
00305309

Owner as the FAA publishes it

Name
Silvan Wayne C
Type
Individual
Address
PO Box 428
Big Sandy, MT 59520-0428

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 3

2013-02-25Balloon Works FIREFLY 7 · Sale reported, canceled
1980-12-29Beech 77 · exported to Australia · Valid registration
1973-03-30Cessna 172E · exported to Canada · Valid registration

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