As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THIS CONTACTOR, PN 128-384054-5, WHEN INSTALLED IN THE K-251 POSITION OF THE HORIZONTAL STABILIZER DEICE SYSTEM CAUSES THE SYSTEM TO FAIL WHEN THE AIRCRAFT IS AT AN ALTITUDE THAT A MINUS 10 DEGREES OR COLDER RAM AIR TEMPERATURE IS ACHIEVED. (X)