A B767 IN CLB AT FL250 DIVERTED DUE TO A CABIN ATTENDANT NOTICING THE FORWARD R DOOR HANDLE CREEPING UP TO THE OPEN POS. NO DOOR WARNING IN COCKPIT.

Narrative

AFTER INITIAL CLB AND JUST BEFORE CRUISE ALT I NOTICED THE ARMING HANDLE FOR THE SLIDE TO BE OUT OF ARMED POS. IN ADDITION; THE DOOR RELEASE HANDLE WAS RISING UP OUT OF ITS LOCKED AND DOWN POS. I COULD HEAR A SLIGHT AIR LEAK SOUND AND FEEL COLD AIR; ALTHOUGH VERY SLIGHT. I PUSHED THE DOOR HANDLE BACK INTO POS AND TRIED TO REARM THE DOOR TO NO AVAIL. ONCE AGAIN THE DOOR HANDLE BEGAN TO RISE ON ITS OWN; SO I HELD IT IN PLACE WHILE THE CAPT AND THEN FO CAME OUT TO CHK ON THE SIT. I WAS INSTRUCTED TO HOLD THE HANDLE UNTIL 10000 FT. FROM THERE I SAT IN JUMP SEAT UNTIL WE LANDED IN IAD. ONCE AT 10000 FT THE HANDLE NO LONGER MOVED ON ITS OWN ACCORD. I BELIEVE THE DOOR WAS NOT FULLY SEALED AT DEP AND THAT THE ARMING OF THE DOOR HADN'T LOCKED SOLIDLY. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED AT FL250 A SLIGHT AIR LEAK WAS NOTED AND THEN THE DOOR HANDLE MOVED SLOWLY UP AWAY FROM THE CLOSED DETENT. THE RPTR SAID IT MAY HAVE BEEN CLOSED IMPROPERLY BY CATERING AND WAS UNSURE IF THE DOOR ARMED CORRECTLY PRIOR TO TKOF. THE RPTR STATED THE FLC DID NOT RECEIVE A DOOR WARNING INDICATION AT ANY TIME.