As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRST OFFICER WINDOW CANNON PLUG LOOSE AND GETTING JAMMED IN TOP TRIM PIECE OF SLIDING WINDOW CANNON PLUG WAS SECURED OUT OF THE WAY. PERFORMED OPS CHCEK OF FO WINDOW REF B757 AMM 52-11-02-2. FO WINDOW OPEN ANS CLOSE NORMAL. OPS CHECK GOOD AIRCRAFT OK FOR SERVICE.