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Registered aircraft · FAA record as of September 25, 2026
N121U

Aero C-104

N121U is an Aero C-104, a fixed-wing airplane with one motor with a piston engine, built in 1947. It has 1 seat. It is registered to an individual in Spokane, Washington. The registration is valid: it was issued on February 17, 1977 and expires on August 31, 2029. It holds an experimental airworthiness certificate for exhibition, dated July 23, 2013.

Aircraft

Maker
Aero
Model
C-104
Serial number
215
Type
Fixed-wing, single engine
Power
Piston (reciprocating), 1 motor · Superior XP-0-360B1AC2 · 180 hp
Seats
1
Year built
1947
Transponder code
A0592B (octal 50054453)

Registration

Status
Valid registration
Certificate issued
February 17, 1977
Expires
August 31, 2029
Last FAA action
August 25, 2023
Airworthiness
Experimental · Exhibition · July 23, 2013
FAA region
Northwest Mountain
FAA record id
00800400

Owner as the FAA publishes it

Name
Schafhausen Mark G
Type
Individual
Address
2604 E 62Nd Ln
Spokane, WA 99223-6952

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

1962-11-14Lockheed 188C · Valid registration

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