There are 5 P Z L -Warszawa-Okecie PZL-104 WILGA 35 aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 1973 and 1978.
N6161Q
1978 P Z L -Warszawa-Okecie PZL-104 WILGA 35
Lincoln, NE
N76JX
1977 P Z L -Warszawa-Okecie PZL-104 WILGA 35
New Bern, NC
N59075
1973 P Z L -Warszawa-Okecie PZL-104 WILGA 35
Wilmington, DE
N233NY
P Z L -Warszawa-Okecie PZL-104 WILGA 35
D Hanis, TX
N770SB
P Z L -Warszawa-Okecie PZL-104 WILGA 35
Reno, NV