As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTS REPORTING A LOUD SQUEAL COMING FROM THE CAPT FWD WINDSCREEN AND IT WAS REPLACED IN NAS 11MAR25. RE-TORQUE THE WINDOW PER B737 AMM 56-11-11. PERFORMED RE TORQUE AS REQUESTED BY DELTA MCC FOUND ALMOST ALL BOLTS BELOW MIN TORQUE VALUE TORQUED UP TO CORRECT VALUE NEXT FLIGHT AC DIVERTED DUE TO CONTINUED WHISTLING NOISE OF WINDOW.