AN ACR LGT ABORTED ITS TKOF WHEN THE CAPT'S SLIDING WINDOW CAME OPEN.

Narrative

SHORTLY AFTER PUSHBACK STARTED; THE TUG OPERATOR STOPPED AND SAID WE HAD NEW PAPERWORK COMING FROM OPS. A BAGGAGE LOADER WAS BROUGHT UP TO THE CAPT'S WINDOW AND A NEW AUTOMATED WT AND BAL WAS GIVEN TO THE CREW. THE WINDOW WAS CLOSED AND THE ACFT WAS TAXIED OUT FOR TKOF. THE TKOF ROLL WAS NORMAL AND ALL INDICATORS WERE NORMAL. AT ABOUT 80 KTS THE CAPT'S WINDOW SLID SLIGHTLY OPEN. THE CAPT MADE 1 ATTEMPT TO CLOSE THE WINDOW BUT WAS NOT SUCCESSFUL. THE CAPT THEN ELECTED TO REJECT THE TKOF. ACFT SPD WAS 110 KTS. THE ACFT WAS STOPPED ON THE RWY UNEVENTFULLY. THE CAPT'S WINDOW WAS THEN CLOSED AND LOCKED AND A PA WAS MADE TO THE PAX EXPLAINING WHAT HAD OCCURRED. THE BRAKE COOLING CHART WAS CONSULTED AND COMPLIED WITH. THE SENIOR FLT ATTENDANT WAS CONSULTED AND SHE INFORMED THE CAPT THAT A FEMALE PAX WAS UPSET AND WISHED TO RETURN TO THE GATE AND DEPLANE. THE ACFT WAS RETURNED TO THE GATE; REFUELED; RECEIVED NEW PAPERWORK AND CONTINUED THE FLT UNEVENTFULLY. SINCE IT IS NOT NORMAL FOR A WINDOW TO START TO OPEN IF IT IS 'CLOSED AND LOCKED' IT IS FELT THAT THE WINDOW PROBABLY WAS NOT COMPLETELY 'LOCKED' AFTER THE UNUSUAL EVENT OF PASSING NEW PAPERWORK TO THE CAPT.