As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(YUUR) DURING PRE-INSP GROUND RUNS THE PROPELLER DE-ICE AMPERAGE WAS NOTED LOW. INSP REVEALED THE BLADE DE-ICE BOOT LEAD IS A 2 PIECE ASSY WITH A MOLEX TYPE CONNECTOR SECURED TO THE BLADE. INSIDE THE CONNECTOR THERE IS AN ORANGE PIECE OF FOAM FOR SEALING THE CONNECTOR. THIS CONNECTOR HAS NO LOCKING DEVICE AND WAS SEPARATING CAUSING LOSS OF CONTACT WE BELIEVE BY THE PRESSURE FROM THE FOAM. C/A WAS TO INSTALL A SMALL TIE WRAP AROUND THE CONNECTOR.