N591CK - 2021 William N Wirth AL18 Aircraft Registration

2021 WILLIAM N WIRTH AL18

Aircraft Description

N591CK is a 2021 William N Wirth AL18, a single-engine four-cycle piston aircraft registered to Wirth William N in Wauwatosa, WI. This aircraft holds a experimental airworthiness certificate issued by the Federal Aviation Administration on April 8, 2021. The registration certificate was issued on April 1, 2021. The registration is set to expire on April 30, 2028. Powered by a Cont Motor OX-340 SERIES engine producing 180 horsepower, N591CK is. The aircraft's Mode S transponder code is A7A15A (hex), used for ADS-B identification and flight tracking. N591CK was last tracked by AviatorDB near Waukesha County Airport (KUES) on March 4, 2026. The FAA registry record for N591CK was last updated on May 5, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

William N Wirth is an aircraft manufacturer with aircraft registered in the FAA database tracked by AviatorDB. AviatorDB tracks 1 William N Wirth aircraft currently registered in the FAA database, including the AL18 model.

AviatorDB has found no NTSB accident or incident reports involving N591CK. AviatorDB cross-references all FAA registration data with NTSB accident and incident reports, providing a comprehensive safety overview for every registered aircraft in the United States.

Model Year
2021
Manufacturer
WILLIAM N WIRTH
Model
AL18
Type Aircraft
Fixed Wing Single Engine
Weight Class
Up to 12,500 lbs
Airworthiness Date
April 8, 2021
Classification
Experimental 2 Category
Type Registration
Individual
Status
Valid Registration
Cert Issue Date
April 1, 2021

Registered Owner

Name
WIRTH WILLIAM N
Address
1741 ALTA VISTA AVE
City
WAUWATOSA
State / Zip Code
Wisconsin53213-2319
Country
United States

Powerplant & Avionics

Engine Type
4-cycle
Number of Engines
1
Engine Manufacturer
CONT MOTOR
Engine Model
OX-340 SERIES
Horsepower
180 HP
Mode S Code (Oct)
51720532
Mode S Code (Hex)
A7A15A

Additional Details

Registration
N591CK
Serial Number
AL-347
Number of Engines
1
Number of Seats
2
Expiration Date
April 30, 2028
Last Action Date
May 5, 2023
Last Update Date
January 19, 2026
Unique ID
01338657

Last Known Position

Date
April 3, 2026 (UTC 20:33:01)
Airport
Latitude
43.044388
Longitude
-88.252407

Data Source

Data provided by the US Federal Aviation Administration. View on FAA.gov

Last updated: 2026-04-01 01:32:20 UTC