ACR Y CLB TO OCCUPIED ALT ON OCEANIC RTE; HAD LTSS FROM ACR X SYS ERROR.

Narrative

ACR X WAS EBOUND FROM HNL TO SEA VIA A331 AT FL330. ACR Y WAS WBOUND FROM LAX TO TAIPEI VIA ALCOA 38/130 37/140 37/150 38/160 AT FL310. AT XX40Z OC7 WAS COMBINED AT OC1; WITH THE OC7 CTLR MOVING TO OC1. AT XX41Z ACR Y REQUESTED FL330. THE OC1/7 CTLR CONDUCTED A TFC SEARCH BY SCANNING THE FLT PROGRESS STRIPS AND THE ODAPS PVD. AT XX43Z; THE OC1/7 CTLR ISSUED ACR Y A CLB CLRNC TO FL330. AT XY17Z SEPARATION WAS LOST BTWN ACR X AND ACR Y. DURING A LATER SCAN OF THE SECTOR; THE OC1/7 CTLR DISCOVERED THAT THE 140W FLT PROGRESS STRIP OF ACR Y HAD BEEN MIS-SEQUENCED UNDER THE WRONG BAY HEADER. WHEN THE FLT PROGRESS STRIP WAS PLACED UNDER THE CORRECT BAY HEADER; THE OC1/7 CTLR REALIZED THAT ACR Y WAS IN CONFLICT WITH ACR X. AT XY31Z THE CTLR CALLED HNL ARINC; BUT FOUND THAT ACR Y WAS STILL WITH SFO ARINC. AT XY32:45Z THE OC1/7 CTLR CALLED SFO ARINC AND ISSUED A DSCNT CLRNC FOR ACR Y TO DSND AND MAINTAIN FL310 FOR TFC. SFO ARINC ISSUED THE CLRNC BUT ADVISED THAT ACR Y RPTED PASSING THE TFC AND REQUESTED TO REMAIN AT FL330. AT XY36Z THE OC1/7 CTLR REQUESTED THE POS OF ACR X AND ACR Y AT XY46Z ACR X GAVE THEIR POS AND ADVISED THEY HAD RECEIVED A TCASII ALERT AND HAD SEEN A WDB PASSING FROM E TO W ABOUT 10 TO 12 MINS AGO. LATERAL SEPARATION WAS RE-ESTABLISHED AT XY40Z.