There are 6 Construcciones Aeronauticas Sa C.A.S.A. 1.131E 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 1951 and 1961.
N619N
1961 Construcciones Aeronauticas Sa C.A.S.A. 1.131E
La Mesa, CA
N131AK
1954 Construcciones Aeronauticas Sa C.A.S.A. 1.131E
Dallas, TX
N40HM
1953 Construcciones Aeronauticas Sa C.A.S.A. 1.131E
Vineburg, CA
N713CW
1951 Construcciones Aeronauticas Sa C.A.S.A. 1.131E
Manchester, TN
N131PK
Construcciones Aeronauticas Sa C.A.S.A. 1.131E
Burleson, TX
N211BP
Construcciones Aeronauticas Sa C.A.S.A. 1.131E
Snellville, GA