As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS IN BASE MAINTENANCE. FIRST OFFICER'S SLIDING WINDOW VERY DIFFICULT TO MOVE TO THE FORWARD POSITION AND OVERCOME MECHANISM SPRINGS AFT. ADJUSTED INBOARD AND OUTBOARD LINK ARM, AFT CORNER OF WINDOW, AFT ROLLER CLUSTER AND CAMBLOCK ON #2 OPENABLE WINDOW. REMOVED AND REINSTALLED LATCH HANDLE LOWER AFT AND TOP COVER. OPERATIONAL CHECK GOOD PER AMM 56-11-02.