As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE FLIGHT CREW STATED THAT THE LT 3 WING DEICE BOOT ADVISORY LIGHT WOULD NOT COME ON AND THAT THE BOOT DID NOT APPEAR TO INFLATE FULLY. MTC T/S DISCOVERED THE DEICE LINE IN THE LH NACELLE WAS CHAFFED ALMOST WAY THROUGH BY THE MLG ALTERNATE EXTENSION CABLE WHICH WAS RUBBING ON IT. THE DEICE LINE REMOVED WAS FOUND TO BE P/N 83010099-001 WHICH IS INCORRECT FOR THIS A/C DUE TO EFFECTIVITY. THE DEICE LINE WAS REPLACED.