Hi Denes,
The exact date of Kozhedub's 'PZL-24' claim is 11 April 1944, place - Syrka (sorry don't know correct is this or not), time 17.50.
The archive sources about 55 iap claims of summer 1941 are very contradictory.
Seliverstov claims 1 'PZL-24' on 26.06.41, but in other source the date is 25.06 and the type - 'Me-109'...
Viktorov also claims 1 'PZL-24' on 26.06.41, but in other source it's listed as 'Me-109'...
Diachenko claims 1 'PZL-24' on 27.06.41, but in other source it's listed as 'Hs-126'...
Seliverstov claims next 1 'PZL-24' on 03.07.41, but in other source it's listed as 'PZL-37'!..
Pokryshkin claims 1 'PZL-24' on 03.07.41...
Svetlichnyi claims 1 'PZL-24' on 03.07.41...
Grachev claims 1 'PZL-24' on 26.07.41...
Except 'PZL-24's there are also several 'PZL-23's in victory list of 55 iap
...
Several other VVS iaps claimed 'PZL-24's, most of them in summer 1941. For example, 146 iap has no less then 5 'PZL-24's on it's claim list (and several 'SET-7's)!