As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: AFTER PARKING THE AIRCRAFT THE FIRST OFFICER OPENED HIS SLIDING WINDOW AND THE WINDOW CAME OFF THE TRACKS AND IS LOOSE IN THE COCKPIT. REINSTALLED WINDOW IN TRACKS, OPERTIONAL CHECKS NORMAL. PER AMM 56-12-11.