Skip to content

Public Record · As of May 5, 2026

N121U

Aero C-104 · 1947 View Type →

Status

Registration Valid

Type

Fixed Wing Single Engine

Engine

SUPERIOR XP-0-360B1AC2

Last Cert Issue

—

01 /  Registration

Filed with the Federal Aviation Administration

Every cell below is a literal field from the FAA Aircraft Registry. Click any value to open the FAA registry record for N121U.

Tail Number

N121U

Serial Number

215

Make

AERO

Model

C-104

Year of Manufacture

1947

Mfr / Model Code

1590108

Type Aircraft

Fixed Wing Single Engine

Type Engine

Reciprocating

Engines

1

Seats

1

Engine Manufacturer

SUPERIOR

Engine Model

XP-0-360B1AC2

Horsepower

180 hp

Weight Class

CLASS 1

Certification

Experimental (+1 flag) · code 43

Registrant

SCHAFHAUSEN MARK G · Individual

Address

2604 E 62ND LN · SPOKANE, WA 99223-6952

FAA Region

Southern · County 063

Status

Registration Valid

Airworthiness Date

—

Cert Issue Date

—

Expiration Date

—

Last FAA Action

—

Mode S Hex (ICAO24)

A0592B

Mode S (Octal)

50054453

Live position via ICAO24 A0592B

ADS-B Exchange → FlightAware → FlightRadar24 →

External services. Live tracks are unaffiliated with TallyAero or the FAA.

02 /  NTSB Records

Events on file with the National Transportation Safety Board

03 /  Airworthiness Directives

Applicable to AERO C-104

Federal Aviation Administration airworthiness directives matched to make and model. Each entry links to the Federal Register publication.

No matching airworthiness directives are on file for this make and model in the Federal Register.

04 /  Service Difficulty Reports

FAA SDR filings

The FAA does not currently expose a public API for Service Difficulty Reports. We do not back-fill or paraphrase. Search the FAA SDR portal directly →

05 /  Sources & Methodology

Every fact on this page links to its primary US-government source

We render only what the agency publishes. Found a factual error? Report it → We acknowledge within 5 business days and resolve within 14.