As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INBOARD PORTION OF ALL THREE PROP DEICE BOOTS DEBONDED AGAIN. ON THIS PROP, NEW BLADES WERE SENT FROM HARTZELL DUE TO DEBOND OF PREVIOUS BOOTS AT 28.4 HRS TT AND AGAIN AT 28.9 HRS TT. RETAINER STRAP AND BOOT DEBONDS DUE TO CENTRIFUGAL FORCE PULLING DEICE BOOT LEAD ON EACH PROP BLADE. THIS HAS HAPPENED ON FIVE OR MORE LANCAIR COLUMBIA AIRCRAFT. THE SEALING PROCESS FOR THE RETAINER STRAP IS LACKING. SMR TECHNOLOGIES AND HARTZELL NEED A BETTER STRAP OR A GOOD TY-RAP.