What was found
FLT NR 958 - GUM - AIR TURN BACK, NOTED AIR LEAK ON T/O (RT SIDE F/O'S WINDOW AREA) AS DIFFERENTIAL INCREASED NOISE TURNED TO SQUEL AND INCREASED AT 5 PSI. NOISE WAS DEAFENING AND CREW/RADIO COMMUNICATIONS BECAME IMPOSSIBLE, DUMPED 9000 LBS OF FUEL OFFSHORE AND RETURNED TO GUAM, LANDING WEIGHT 134,000 LBS. FOUND FLIGHT OFFICERS WINDSHIELD (R1) PEELING ON OUTSIDE. REMOVED ALL OUTER SEALANT, RETORQUED, RESEALED PER MM 56-11-11. (M)