What was found
RTO AT 102KTS DUE TO WINDOW FLIGHT DECK L EICAS MESSAGE DEBRIEFED CREW , ONLY THE MOVEMENT OF THE WINDOW HANDLE MOVED JUST A BIT, FOLLOWED BY INDICATION. MAT INTEROGATED. , FOUND NO FAULTS LOGGED IN. CHECKED THE WINDOW OPERATION PER AMM 56-11-03-5. NIL ABNORMALITIES SEEN, OPENED AND CLOSED WINDOW SEVERAL TIMES WITH NO FAULT OBSERVED. INDICATION OK. ACFT OK FOR SERVICE.