As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF WIND NOISE INCREASED AS SPEED INCRD AS WE PASSED 1220 0FT LOUD HIGH PITCH SQUEEL. FOUND LEAK WAS COMMING FROM NR 2 SLIDER WINDOW ON CAPTAINS SIDE. ADDED .040 SHIMS TO FWD BELLCRANK HOUSING BLOCK & PRESSURIZED ACFT TO 4.0 , NO NOISE OR LEAKS NOTED.ALSO PERFORMED WINDOW HEAT AND OP'S CHECK IAW AMM 56-12-11-820-801.