As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DE-ICE BOOTS ON WINGS INFLATE DURING FLIGHT. VACUUM SIDE DE-ICE LINE ON RIGHT SIDE BENEATH A DUCT APPARENTLY HAS MOISTURE IN IT. CENTER FLOOR FS 173 RT. THE MOISTURE AND LOCATION OF THIS LINE CAUSE CORROSION TO SET IN. EATS HOLES IN LINE. ABOUT SIZE OF NR 40 DRILL. HOLES ALLOW CABIN PRESSURIZATION AIR TO ENTER AND PRESSURIZE WING DE-ICE BOOTS.