As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
VERTICAL STABILIZER LEADING EDGE, BOTH LEFT AND RIGHT DE-ICE SUPPLY DUCT WEARING INTO AUXILLIARY STRUCTURE. REMOVED DUCTS AND REPAIRED AUX STRUCTURE AT VERTICLE STAB RIB 1 AREA IAW AVRO FAX DJR/RJ0930-96. NEW W/C GENERATED FOR DUCT INSTALLATION.