As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) MULTIPLE REPORTS OF FAILED DEICE HARNESSES ON 4 BLADE PROPS ON ACFT. RECENT FAILURE ALSO OF PMA SMR2293-1. TYPICAL FAILURE IS OUTER VINYL SHEATH FAILS AND INNER WIRE, LAST 2 HAVE BEEN GROUND WIRES, FAILS EITHER FROM CHAFING OR MOVEMENT. DATABASE SHOWS 12 REPLACED LAST WINTER/SPRING AND 5 THIS YEAR SO FAR ON A FLEET OF 5 ACFT. THIS PROPELLER WAS 1383 TSO, TYPICAL FAILURES ARE IN THE 700-800, TSO RANGE.