if the source of DFHBMSCA REALLY looks like the thing You posted probably You ZACIC1 volume is corrupted ( somehow ??? )
here how my DFHBMSCA looks
BROWSE DFH320.CICS.SDFHCOB(DFHBMSCA) Line 00000000 Col 001 080
Command ===> Scroll ===> CSR
******************************** Top of Data **********************************
***************************************************************** 00060000
* * 00120000
* @BANNER_START 02 * 00128500
* Licensed Materials - Property of IBM * 00137000
* * 00145500
* "Restricted Materials of IBM" * 00154000
* * 00162500
* 5655-M15 DFHBMSCA * 00171000
* * 00179500
* (C) Copyright IBM Corp. 1988, 2005 * 00188000
* * 00196500
* CICS * 00205000
* (Element of CICS Transaction Server * 00213500
* for z/OS, Version 3 Release 2) * 00222000
* @BANNER_END * 00230500
* * 00240000
* STATUS = 6.5.0 * 00300000
* * 00370000
* CHANGE ACTIVITY : * 00440000
* * 00510000
* $SEG(DFHBMSCA),COMP(BMS),PROD(CICS ): * 00580000
* * 00650000
* PN= REASON REL YYMMDD HDXXIII : REMARKS * 00720000
* $01= A10639 650 051018 HDBGNRB : Migrate PK10639 from SPA R640* 00750000
* $L0= Base 210 88 HD1MA : Base * 00790000
* * 00860000
***************************************************************** 00930000
