After installing UA94501 on 2.3 jobs opening extended format data sets more than 32K times will experience an abend 906 rc04. The LOAD (SVC8) is issued in IGG0193W +x'2FD)' for IGG019BB. The load count for IGG019BB is x'7FFF'. Additional Symptoms: msgcsv001i REQUESTS for module IGG019AQ or IGG019BB exeed maximum load count msgcsv028i This can occur for IGG019AQ (QSAM) and IGG019BB (BSAM) for extended format data sets after applying the fix for QA54348.