What was found
INSPECTION TYPE:N/A**ATB**F/O SIDE WINDOW OPENED UP DURING T.O. TRIED TO CLOSE RAN QRC CLD NOT GET CLOSED. NOISE MADE COMAN VERY DIFFICUTT DECLARED EMERG RETURN DFWPERFORMED TEST OF THE F/O SIDE WINDOW. OF LATCHING SYSTEM , OPEN ,AND CLOSE FORCE BETWEEN LIMITS. WITH OUT BINDING IAW AMM 56-11-02.