Staging copy. The live site is at https://staging.data.eflight.com.
eFlight RegistryFAA data, updated daily
Maker · data as of September 25, 2026

William E Siperek

1 aircraft on the U.S. register. The most recent registration was April 27, 2023.

Models

SPEZIO SPORT DAL-11

States

Texas1

Registrations by year

0001112023

Aircraft newest first

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N92JM William E Siperek
SPEZIO SPORT DAL-1
Fixed-wing, single engine Individual owner
Texas
Experimental 2023-04-27 Valid