PZL-Okecie CSS-13 The OE-CPO is a Polish-built Polikarpov Po-2 cn 0430-964 / built 1952 (SP-AFC (2), SP-FZP, , SE-XPP), OE-CPO, (D-EEPO (2)) Austrian Aircraft Register OE-CPO: September 2009 - September 2012 OE-CPO