As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THAT THE CAPTAIN'S SIDE WINDOW IS STIFF AND DIFFICULT TO CLOSE. MAINTENANCE FOUND A LOOSE PIECE OF EXCESS SEALANT JAMMING LOWER SEAL AREA, REMOVED LOOSE PIECE. SEALING SURFACE REMAINED INTACT AND WINDOW CLOSES NORMALLY. PRESSURIZED AIRCRAFT TO MAX DIFF, NO LEAKS NOTED. IAW AMM 56-11-01.