As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNBEARABLE LOUD SQUEAL FROM CAPT SLIDING WINDW, LEAK STOPPED FL230 7.3P. ADJUSTED L2 WINDOW UPPER FWD ROLLER BRACKET AND LWR AFT LINK ARM PER MM 56-11-02. WINDOW OPENS AND CLOSES GOOD. PRESSURIZED A/C TO 3.5 PSI (DELTA PRESSURE) WITH NO LEAKS NOR NOISES NOTED (INSIDE OR OUT).