FLT CREW OF B735 FAILED TO OBTAIN AND VALIDATE A FLT RELEASE (PLAN) FOR AN UNPLANNED SHORT FLT TO THEIR DEST AFTER A WX DIVERSION.

Narrative

PRIOR TO THE LEG FROM ZOA TO SFO FOLLOWING A WX DIVERT; THE DISPATCHER SENT A NEW FLT PLAN FOR OUR CONTINUATION TO SFO (ORIGINALLY DEPARTED FROM YVR). I FAILED TO SIGN THE RELEASE PRIOR TO DEP. THE FOLLOWING FACTS CONTRIBUTED TO THE OVERSIGHT: 1) THE DOOR AT RWY 1L WAS NEVER OPENED; SO COMPANY COMPUTERS NEVER REALIZED WE HAD BEEN BLOCKED IN AT ZOA AND ALL THE MESSAGES FROM THE JUST COMPLETED FLT WERE STILL LISTED; 2) WHEN I WENT TO CHECK TO SEE WHAT THE RELEASE NUMBER WAS FROM THE MESSAGE LOG; I FOUND RELEASE 01. IT DIDN'T DAWN ON ME THAT IT WAS FROM THE PREVIOUS LEG UNTIL WE WERE AIRBORNE; 3) I HADN'T DONE A DIVERT WHERE THE DOOR AT RWY 1L WASN'T OPENED; SO I WASN'T AWARE OF THE PITFALLS HERE AND WAS NOT DILIGENT ENOUGH TO ENSURE THE PROPER LEG WAS RELEASED; 4) SEVERAL OF THE PAX WERE VERY UPSET ABOUT HAVING MISSED THEIR CONNECTIONS AND WERE SHOWING UP AT THE FLT DECK DOOR TO INQUIRE WHAT WE WERE GOING TO DO AND IF THEY COULD GET OFF; ETC; SO I WAS DEALING WITH THEM; LEAVING MY FO TO HANDLE THE REMAINDER OF THE COORDINATION WITH THE OUTSIDE AGENCIES. WHEN WE WERE READY TO TAXI; ALL THE PAPERWORK LOOKED CORRECT; ALONG WITH MY NOTATION ON THE ATC CLRNC THAT WE HAD RELEASE 01; WHEN IN FACT; I HAD NOT SIGNED THE RELEASE AT ALL.