Data management detected a physical error while attempting to read from the sequence set of a VSAM KSDS. The condition is raised on the completion of a READ, WRITE, REWRITE, LOCATE or DELETE statement. No further processing of an OUTPUT file can occur. Processing of an UPDATE file can continue. If the error occurs on a READ statement, no data is transferred to the record variable. For sequential access, data set positioning can be lost, causing a subsequent READ without KEY to raise ERROR. Refer to message IBM0831 for sequential access errors. The ONCODE associated with this message is 46.