N540SR - 1991 Staudacher Jon A Ratsrepus 300B Aircraft Registration

ST30

1991 STAUDACHER JON A RATSREPUS 300B

Aircraft Description

N540SR is a 1991 Staudacher Jon A RATSREPUS 300B, a single-engine reciprocating (piston) aircraft registered to Midwest Airshows LLC in Lincoln, NE. This aircraft holds a experimental airworthiness certificate issued by the Federal Aviation Administration on November 20, 2002. The registration certificate was issued on June 11, 2003. The registration is set to expire on July 31, 2027. Powered by a Ama/expr UNKNOWN ENG engine, N540SR is. The aircraft's Mode S transponder code is A6D98C (hex), used for ADS-B identification and flight tracking. The FAA registry record for N540SR was last updated on March 4, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

Staudacher Jon A is an aircraft manufacturer with aircraft registered in the FAA database tracked by AviatorDB. AviatorDB tracks 1 Staudacher Jon A aircraft currently registered in the FAA database, including the RATSREPUS 300B model.

AviatorDB has found no NTSB accident or incident reports involving N540SR. 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
1991
Manufacturer
STAUDACHER JON A
Model
RATSREPUS 300B
Type Aircraft
Fixed Wing Single Engine
ICAO Type Code
ST30S-300
Weight Class
Up to 12,500 lbs
Airworthiness Date
November 20, 2002
Classification
Experimental 2 Category
Type Registration
LLC
Status
Valid Registration
Cert Issue Date
June 11, 2003

Registered Owner

Name
MIDWEST AIRSHOWS LLC
Address
1001 W CUSTER ST
City
LINCOLN
State / Zip Code
Nebraska68521-3857
Country
United States

Powerplant & Avionics

Engine Type
Reciprocating
Number of Engines
1
Engine Manufacturer
AMA/EXPR
Engine Model
UNKNOWN ENG
Mode S Code (Oct)
51554614
Mode S Code (Hex)
A6D98C

Additional Details

Registration
N540SR
Serial Number
3
Number of Engines
1
Number of Seats
1
Expiration Date
July 31, 2027
Last Action Date
March 4, 2023
Last Update Date
January 19, 2026
Unique ID
00444501

Last Known Position

Date
April 29, 2026 (UTC 22:07:06)
Airport
Latitude
40.819153
Longitude
-96.750854

Data Source

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

Last updated: 2026-05-15 01:32:20 UTC