N4BS - 1976 Sidlinger Pitts S-1 Aircraft Registration

HBLD

1976 Sidlinger PITTS S-1

Aircraft Description

N4BS is a 1976 Sidlinger PITTS S-1, a single-engine reciprocating (piston) aircraft registered to Westfall Brent J in Three Lakes, WI. This aircraft holds a experimental airworthiness certificate issued by the Federal Aviation Administration on June 11, 1979. The registration certificate was issued on August 10, 2015. The registration is set to expire on August 31, 2028. Powered by a Lycoming I0360 SER engine producing 180 horsepower, N4BS is. The aircraft's Mode S transponder code is A4A819 (hex), used for ADS-B identification and flight tracking. The FAA registry record for N4BS was last updated on June 3, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

Sidlinger is an aircraft manufacturer with aircraft registered in the FAA database tracked by AviatorDB. AviatorDB tracks 1 Sidlinger aircraft currently registered in the FAA database, including the PITTS S-1 model.

AviatorDB has found no NTSB accident or incident reports involving N4BS. 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
1976
Manufacturer
Sidlinger
Model
PITTS S-1
Type Aircraft
Fixed Wing Single Engine
ICAO Type Code
HBLDExperimental Amateur-Built (one-off / homebuilt)
Cruise Speed
108 mph
Weight Class
Up to 12,500 lbs
Airworthiness Date
June 11, 1979
Classification
Experimental 2 Category
Type Registration
Individual
Status
Valid Registration
Cert Issue Date
August 10, 2015

Registered Owner

Name
WESTFALL BRENT J
Address
825 LEATZOW RD
City
THREE LAKES
State / Zip Code
Wisconsin54562-9753
Country
United States

Powerplant & Avionics

Engine Type
Reciprocating
Number of Engines
1
Engine Manufacturer
LYCOMING
Engine Model
I0360 SER
Horsepower
180 HP
Mode S Code (Oct)
51124031
Mode S Code (Hex)
A4A819

Additional Details

Registration
N4BS
Serial Number
1
Number of Engines
1
Number of Seats
1
Expiration Date
August 31, 2028
Last Action Date
June 3, 2023
Last Update Date
January 19, 2026
Unique ID
00880884

Data Source

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

Last updated: 2026-08-15 01:32:20 UTC