As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WING DE-ICE BOOT SEGMENTS INFLATED FOR 15 SECONDS EACH, IN FAST MODE WITH NORMAL DWELL TIME. TOTAL TIME 1:54 SLOW MODE TIME 58 SECONDS TO CYCLE THROUGH. REPLACED AIRFRAME DE-ICE SYSTEM TIMER. FUNCTIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.