As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ALTERNATE DE-ICE TIMER FAILED DURING FUNCTIONAL TEST. ORDERED AND INSTALLED REPAIRED ALTERNATE PNEUMATIC TIMER, PN 3D2485-06, SN U1179 UNDER WO SAPO15-49894 DATED 10/15/15. PERFORMED FUNCTIONAL CHECK AND UNIT FAILED FUNCTIONAL CHECK. OUT OF BOX FAILURE, REMOVED PNEUMATIC TIMER AND INSTALLED SERVICEABLE TIMER AND SYS FUNCTIONAL CHECKED SATISFACTORY.